Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Table]
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Table]
Summarization of information required and determined to be disclosed concerning assets and liabilities, including [financial] instruments, which are measured at fair value on a recurring basis using significant unobservable inputs (Level 3).
Banks, trusts and insurance companies
Banks, Trust and Insurance, Equities [Member]
Thereafter
Lessee, Operating Lease, Liability, to be Paid, after Year Five
Net decrease in cash
Net increase (decrease) in cash
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Schedule of Maturity of Lease Liabilities
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Fixed income securities
Beginning balance
Ending balance
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest
Fixed income securities with unrealized loss position greater than or equal to 20% of amortized cost, net
Available for sale Securities, Unrealized Losses Having Loss of Twenty Percent or Higher
The amount of unrealized losses that are related to securities with an unrealized loss position greater than 20% of cost or amortized cost.
Legal contingencies
Legal Costs, Policy [Policy Text Block]
Trading Symbol
Trading Symbol
Valuation change of equity investments
Equity Securities, FV-NI, Realized Gain (Loss)
Schedule of Valuation Changes Included in Net Income and OCI for Level 3 Assets and Liabilities Held
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]
Asset derivatives, gross asset
Gross amount
Derivative Asset, Subject to Master Netting Arrangement, before Offset
Non-NEOs
Non-NEOs [Member]
Noncumulative Perpetual Preferred Stock
Noncumulative Preferred Stock [Member]
Claims and claims expense and accident, health and other policy benefits
Supplementary Insurance Information, Benefits Claims, Losses Settlement Expense and Interest Credited to Policyholders Account Balances
Amount of insurance benefits, claims, losses and settlement expenses incurred, plus interest allocated to policyholders holding contracts under which the insurer must provide a guaranteed yield.
Beginning balance at original discount rate
Ending balance at original discount rate
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Cash Flow and Reinsurance
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Dividends received from subsidiaries
SEC Schedule, 12-04, Cash Dividends Paid to Registrant, Subsidiaries and Equity Method Investees
Reinsurance and Indemnification
Reinsurance Accounting Policy [Policy Text Block]
Non-Rule 10b5-1 Arrangement Adopted
Non-Rule 10b5-1 Arrangement Adopted [Flag]
Fair Value of Assets and Liabilities
Fair Value Disclosures [Text Block]
Other comprehensive (loss) income
Other Comprehensive Income (Loss), before Tax
4.500% Senior Notes, due 2043
Senior Notes Due 2043 at 4.500 Percent [Member]
Represents the senior notes due in 2043 at an interest rate of 4.50 percent.
Short-duration Insurance Contracts, Accident Year [Domain]
Short-Duration Insurance Contracts, Accident Year [Domain]
Accumulated other comprehensive loss
Disposal Group, Including Discontinued Operation, Accumulated Other Comprehensive Income (Loss)
Disposal Group, Including Discontinued Operation, Accumulated Other Comprehensive Income (Loss)
Ceded
Ceded Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are assumed and earned by another insurer as a result of reinsurance arrangements.
Portion at Fair Value Measurement
Portion at Fair Value Measurement [Member]
Numerator:
Numerator [Abstract]
Schedule of Effects of Reinsurance Ceded and Indemnification Programs on Property and Casualty Insurance Claims and Claims Expense and Accident, Health and Other Policy Benefits
Schedule of Reinsurance Claims Benefits Ceded [Table Text Block]
Schedule of Reinsurance Claims Benefits Ceded
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
Allstate Health and Benefits
Allstate Health And Benefits [Member]
Allstate Health And Benefits
Equity in net income (loss) of subsidiaries
Income From Subsidiaries
The entity's equity in the net income (loss) of its subsidiaries.
Short-duration Insurance Contracts, Claims Development [Table]
Short-Duration Insurance Contracts, Claims Development [Table]
Variable Interest Entities
Variable Interest Entity Disclosure [Text Block]
Operating segments
Operating Segments [Member]
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Expiration term for options
Share based Compensation Arrangement by Share based Payment Award, Award Expiration Term
Represents the number of years after which granted options expire.
Equity and index contracts
Equity and Index Contract [Member]
An equity and index contract.
Schedule of OTC Cash and Securities Collateral Pledged
Schedule Of Cash And Securities Collateral Pledged [Table Text Block]
Schedule Of Cash And Securities Collateral Pledged
Other adjustments
Policyholder Contract Deposits Adjustments, Other
Other adjustments during the period to the liability for policyholder contract deposits, not specified elsewhere in the taxonomy.
Contractholder funds
Disposal Group, Including Discontinued Operation, Policyholder Contract Deposit
Disposal Group, Including Discontinued Operation, Policyholder Contract Deposit
Schedule of Additional Significant Financial Performance Data
Schedule of Segment Reporting Information, Additional Information [Table Text Block]
This element may be used to capture the additional significant financial performance data for each of the company's reportable segments.
Non-cash investing activities, acquisition-related contingent payouts
Noncash Investing Activities, Acquisition Related Contingent Payouts
Noncash Investing Activities, Acquisition Related Contingent Payouts
Restructuring Type [Axis]
Restructuring Type [Axis]
Liabilities for claims and claim adjustment expenses, net of recoverables
Net outstanding liabilities
Liabilities for claims and claim adjustment expenses, net of recoverables
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Schedule of Effects of Reinsurance and Indemnification on Property and Casualty Premiums Written and Earned and Accident and Health Insurance Premiums and Contract Charges
Schedule of Effects of Reinsurance Premiums for Insurance Companies [Table Text Block]
Schedule of the effects of reinsurance on premiums written, premiums earned and contract charges, including amounts written and earned directly by the insurer, amounts assumed from other insurers, and amounts ceded to other insurers.
Proceeds from disposal
Proceeds from Divestiture of Businesses
Schedule of Reinsurance and Indemnification Recoverables, Net
Schedule Of Reinsurance Recoverable For Paid And Unpaid Claims And Claims Adjustments [Table Text Block]
Schedule Of Reinsurance Recoverable For Paid And Unpaid Claims And Claims Adjustments
Percentage of municipal bond portfolio carrying value (as a percent)
Municipal Bonds Portfolio, Carrying Value Percentage
This element represents the amount of municipal bonds as a percentage of total carrying value.
Additional capital paid-in
Additional Paid in Capital, Common Stock
Income taxes
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table
Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member]
Transaction Type [Axis]
Transaction Type [Axis]
Estimated catastrophe loss
Estimated Catastrophe Loss
Estimated Catastrophe Loss
Company Selected Measure Amount
Company Selected Measure Amount
Unrealized net capital losses
Deferred Tax Assets, Capital Loss Carryforwards
Premium installment receivables, net
Premium installment and other receivables, net
Premiums Receivable, Net
Tabular List, Table
Tabular List [Table Text Block]
Net investment income
Net Investment Income [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Net investment income.
Significant unobservable inputs (Level 3)
Fair Value, Inputs, Level 3 [Member]
Accident, health and other policy benefits, remeasurement (gains) losses
Accident, health and other policy benefits
Accident, Health And Other Policy Benefits, Remeasurement (Gain) Loss
Accident, Health And Other Policy Benefits, Remeasurement (Gain) Loss
Deductions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Expected long-term rate of return on plan assets
Expected weighted average long-term rate of return on plan assets
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-Term Rate of Return on Plan Assets
Schedule of Incurred Claims, Cumulative Paid Claims and Allocated Claim Adjustment Expenses, Net of Recoverables
Short-Duration Insurance Contracts, Claims Development [Table Text Block]
Anti-dilutive options excluded from diluted earnings per common share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Gross and net information about the liabilities subject to master netting arrangements
Offsetting Assets and Liabilities [Line Items]
Other postretirement benefits
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Postretirement Benefits
Fixed income securities
Available for sale Fixed Income Securities Unrealized Gain (Loss) Included in Other Comprehensive Income
The amount of unrealized gains (losses) included in accumulated other comprehensive income on fixed income securities which are categorized neither as held-to-maturity nor trading securities, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date.
Depreciable assets
Deferred Tax Liabilities Tax, Deferred Expense Reserves and Accruals Policyholder Liabilities
The tax effect as of the balance sheet date of the amount of the estimated future tax liabilities arising from estimated policyholder reserves, which will be deductible from future taxable income when actual costs are incurred, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the tax deduction to be taken.
Reserve for property and casualty insurance claims and claims expense
Beginning balance
Ending balance
Gross reserve for future policy benefits
Liability for Claims and Claims Adjustment Expense
Interests in surplus notes (as a percent)
Surplus Notes, Noncontrolling Interest, Percentage To Absorb Expected Losses
Surplus Notes, Noncontrolling Interest, Percentage To Absorb Expected Losses
Goodwill
Goodwill by reporting unit
Goodwill
Period after occurrence of certain tax and rating agency events in which redemption of debt in whole permissible
Debt Instrument Period after Occurrence of Certain Tax and Rating Agency Events in which Redemption of Debt in Whole Permissible
The period after the occurrence of certain tax and rating agency events, which permits the redemption of debt in whole prior to maturity date.
Other investments
Proceeds from Sale of Other Investments
Other comprehensive (loss) income, after-tax
Other comprehensive income (loss), after-tax
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Income tax refunds
Proceeds from Income Tax Refunds
Investments classified as held for sale
Investment Held For Sale, Unrealized Gain (Loss) Included in Other Comprehensive Income
Investment Held For Sale, Unrealized Gain (Loss) Included in Other Comprehensive Income
Other assets
Other Assets, Miscellaneous
Schedule of Reconciliation of the Net Incurred and Paid Claims Development to Reserve for Property and Casualty Insurance Claims and Claims Expense
Short-Duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table Text Block]
Fixed income securities
Total fixed maturities
Fixed Income Securities [Member]
Depreciation expense
Depreciation
Fixed income securities, at fair value (amortized cost, net $1,809)
Disposal Group, Including Discontinued Operation, Debt Securities, Available-for-Sale, Excluding Accrued Interest
Disposal Group, Including Discontinued Operation, Debt Securities, Available-for-Sale, Excluding Accrued Interest
Other
Proceeds from (Payments for) Other Financing Activities
Other segment expenses
Other Expenses
Accident and health insurance premiums and contract charges
Life and Annuity Premiums and Contract Charges Net [Abstract]
Fixed income securities, at fair value, amortized cost
Amortized cost, net
Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss
Liabilities
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Outstanding, exercisable ("vested") (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Expiration Date
Trading Arrangement Expiration Date
Ceded Credit Risk, Reinsurer [Axis]
Reinsurer, Name [Axis]
Total Shareholder Return Amount
Total Shareholder Return Amount
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Present value of expected net premiums
Liability for Future Policy Benefit, Expected Net Premium [Roll Forward]
Accident Year 2020
Short-Duration Insurance Contract, Accident Year 2020 [Member]
Gross asset fair value of contracts containing credit-risk-contingent features and subject to MNAs
Derivative Gross Asset Fair Value with Credit Risk Contingent Features
Fair value of derivative asset, presented on a gross basis containing credit risk contingent features and which is subject to master netting arrangements.
Equity Awards Adjustments, Footnote
Equity Awards Adjustments, Footnote [Text Block]
Transfers out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Other assets
Other Assets, Fair Value Disclosure
Gross realized gains
Debt Securities, Available-for-Sale, Realized Gain
Unamortized pension and other postretirement prior service credit
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax
Premium revenue and contract charges
Supplementary Insurance Information Premium Revenue and Contract Charges
Amount of premium revenue earned. Also includes an amount that an insurer adds to a policy's premium, or deducts from a policy's cash value or contract holder's account, as compensation for services rendered (may include fees), after subtracting any amounts ceded to another insurer.
Subordinated Debentures Due After January 15, 2023
Subordinated Debentures Due After January 15, 2023 [Member]
Subordinated Debentures Due After January 15, 2023
Exercised (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Named Executive Officers, Footnote
Named Executive Officers, Footnote [Text Block]
Other assets, net
Other assets
Other Assets
Issuances
Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance
Internal Credit Assessment [Domain]
Internal Credit Assessment [Domain]
Liability for Future Policy Benefit, Activity [Line Items]
Liability for Future Policy Benefit, Activity [Line Items]
Florida Hurricane Catastrophe Fund, Contract One
Florida Hurricane Catastrophe Fund, Contract One [Member]
Florida Hurricane Catastrophe Fund, Contract One
Cumulative number of reported claims (in thousands)
Short-Duration Insurance Contract, Cumulative Number of Reported Claims
Basis of presentation
Basis of Accounting, Policy [Policy Text Block]
Direct General Life Insurance Company, NSM Sales Corporation and The Association Benefits Solution, LLC
Direct General Life Insurance Company, NSM Sales Corporation And The Association Benefits Solution, LLC [Member]
Direct General Life Insurance Company, NSM Sales Corporation And The Association Benefits Solution, LLC
Expected program charges
Restructuring and Related Cost, Expected Cost
Net premiums collected
Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected
Amount per statutory accounting practices
Statutory Accounting Practices [Line Items]
Condensed Financial Information of Registrant
Condensed Financial Statements, Captions [Line Items]
Adjustment for performance achievement (in dollars per share)
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other Than Options Adjustments in Period Weighted Average Grant Date Fair Value
Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans related to adjustments for performance achievement.
Total deferred tax assets before valuation allowance
Deferred Tax Assets, Gross
Pension and other postretirement remeasurement (gains) losses
Defined Benefit Plan, Remeasurement Gain (Loss)
Defined Benefit Plan, Remeasurement Gain (Loss)
Reserve for Property-Liability Insurance Claims and Claims Expense [Abstract]
Reserve for Property-Liability Insurance Claims and Claims Expense [Abstract]
Reserve for Property-Liability Insurance Claims and Claims Expense [Abstract]
Guaranty Funds
Guaranty Funds [Member]
Represents state insurance guaranty funds.
Investments classified as held for sale
Investments Held-For-Sale [Member]
Investments Held-For-Sale
ABS
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost
Capital transaction for noncontrolling interest
Noncontrolling Interest, Increase From Capital Transaction
Noncontrolling Interest, Increase From Capital Transaction
Restricted stock units (non-participating) and performance stock awards (in shares)
Incremental Common Shares Attributable to Restricted Stock Units
Aggregate awards of restricted stock to be issued to an employee under a share-based compensation arrangement considered for purposes of computing diluted earnings per share.
Summary of Investments Other Than Investments in Related Parties
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Schedule of Assets and Liabilities Measured at Fair Value
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
Document Fiscal Period Focus
Document Fiscal Period Focus
All Executive Categories
All Executive Categories [Member]
Equity securities
Total equity securities
Equity Securities [Member]
Schedule of Restructuring Activity
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Income tax (expense) benefit on Property-Liability and reconciling items
Income Tax Expense (Benefit), Reconciling Items
Income Tax Expense (Benefit), Reconciling Items
Investments
SEC Schedule, 12-09, Allowance, Investments [Member]
SEC Schedule, 12-09, Allowance, Investments
Costs and expenses
Defined Benefit Plan, Other Operating Costs and Expenses
Defined Benefit Plan, Other Operating Costs and Expenses
Assets
Assets [Abstract]
Retirement Plan Type [Domain]
Retirement Plan Type [Domain]
Other comprehensive (loss) income, after-tax
Other Comprehensive Income (Loss), Net of Tax
Number of counter-parties
Number of Counterparties
The number of counterparties to which the entity has counterparty credit exposure related to derivative contracts.
Document Type
Document Type
Derivative Contract [Domain]
Derivative Contract [Domain]
Remeasurement of benefit obligation (gains) losses
Remeasurement of benefit obligation
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Net balance, beginning
Net balance, ending
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Intersegment premiums and service fees
Intersegment Premiums And Service Fees
Intersegment Premiums And Service Fees
Net amount at risk
Policyholder Account Balance, Net Amount at Risk
Equity Valuation Assumption Difference, Footnote
Equity Valuation Assumption Difference, Footnote [Text Block]
Reinsurance recoverables
Beginning balance
Ending balance
Reinsurance Recoverable, Allowance for Credit Loss
Income (loss) from operations before income tax expense
Income (loss) before income taxes
Income (Loss) from Operations before Income Tax Expense (Benefit)
Sum of operating profit and non-operating income (expense) and income (loss) from equity method investments before income taxes.
Total credit losses by asset type
Allowance for Credit Loss, Credit Loss By Asset Type
Allowance for Credit Loss, Credit Loss By Asset Type
Total amortization
Finite-Lived Intangible Assets, Net
Schedule of Rollforward of Reserve for Property and Casualty Insurance Claims and Claims Expense and Reconciliation of Total Claims and Claims Expense Incurred and Paid by Coverage and Prior Year Reserve Reestimates Included in Claims and Claims Expense
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Investment Type [Axis]
Investment Type [Axis]
Plan surplus receivable
Plan Surplus Receivable
Represents the total amount of receivable reflecting a plan surplus from all open years.
Expired (in dollars per share)
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price
Schedule of Option Grant Assumptions
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
Lease, cost
Lease, Cost
Unearned premium, thereafter
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than Two Years From Balance Sheet Date
Financial Guarantee Insurance Contracts Future Expected Premium Revenue To Be Recognized More Than Two Years From Balance Sheet Date
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Non-Rule 10b5-1 Arrangement Terminated
Non-Rule 10b5-1 Arrangement Terminated [Flag]
Non-PEO NEO Average Total Compensation Amount
Non-PEO NEO Average Total Compensation Amount
Capital contribution or return of capital from subsidiaries
Proceeds from Return of Investment in Subsidiaries
The cash inflow associated with the return of investments in subsidiaries.
Revenues from external customers generated outside the united states
Entity Wide Disclosure on Geographic Areas Foreign Revenue from External Customers
Revenues from external customers attributed to all foreign countries in total from which the entity derives revenues.
Other revenue
Insurance Commissions and Fees
Claims and claims expense paid related to:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Various
Various Carryforward [Member]
Various Carryforward
Defined benefit plan, assumed health care cost trend rates
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Amount
Assumed
Assumed from other companies
Assumed Premiums Earned
Limited partnership interests
Limited partnership interests carried at fair value
Partnership Interest [Member]
Entity Listings, Exchange [Axis]
Entity Listings, Exchange [Axis]
Amortization of prior service credit
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Uncertain Tax Position, Amount
Effective Income Tax Rate Reconciliation, Uncertain Tax Position, Amount
Schedule of Changes in Performance Stock Awards
Schedule of Nonvested Performance-Based Units Activity [Table Text Block]
Current
Current Income Tax Expense (Benefit)
Restatement does not require Recovery
Restatement Does Not Require Recovery [Text Block]
Mortgage loans
Payments to Purchase Mortgage Loans
The cash outflow used to purchase loans that are secured with real estate mortgage.
Intangible assets, finite-lived
Intangible Assets, Finite-Lived, Policy [Policy Text Block]
Other
Other Property [Member]
Deferred tax liabilities
Deferred Tax Liabilities, Gross [Abstract]
Tax
Other Comprehensive Income (Loss), Tax [Abstract]
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
ABS
Asset-backed securities
Asset-Backed Securities [Member]
Insurance fund balance
Insurance Fund Balance
Insurance Fund Balance
Total gains (losses) included in: Net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Unrecognized tax benefits, income tax penalties expense
Unrecognized Tax Benefits, Income Tax Penalties Expense
Securities collateral (received) pledged
Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Security Not Offset
Other
Deferred Tax Liabilities, Other
Total fair value of restricted stock and restricted stock units vested
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
Reclassified to assets held for sale
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Reclassified to Held For Sale
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Reclassified to Held For Sale
Net income (loss)
Net income (loss)
Net income (loss)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Gain (loss) on disposition
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
Derivatives not designated as accounting hedging instruments, total gain (loss) recognized in net income on derivatives
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Limited partnerships interests
Equity Method Investments [Member]
Quantitative information about the significant unobservable inputs
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Repayments of senior debt
Repayments of Senior Debt
Contractholder funds
Deposit Contracts [Policy Text Block]
Describes the accounting policy for the treatment of funds received from or paid to insureds, insurers and reinsurers on contracts for which the criteria for transferring or assuming insurance risk has not been satisfied by the insurer or reinsurer.
2021
Acquisition, 2021 [Member]
Acquisition, 2021
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Number of reinstatements each year for each contract
Catastrophe Insurance Number of Reinstatements Per Year
Represents the number of reinstatements each year for each contract.
Property and casualty insurance premiums written
Premiums Written, Net [Abstract]
Free-standing derivatives, liabilities
Free Standing Derivative Liabilities [Member]
This element represents the defined benefit plan assets invested in free standing liabilities derivatives.
Short-term Debt, Type [Domain]
Short-Term Debt, Type [Domain]
Reinsurance and indemnification recoverables, net
Reinsurance recoverables, net
Reinsurance and indemnification recoverables, net
Reinsurance And Indemnification Recoverables, Net
Reinsurance And Indemnification Recoverables, Net
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Legal Entity [Axis]
Legal Entity [Axis]
Mortgage Acquisition Period [Axis]
Mortgage Acquisition Period [Axis]
Mortgage Acquisition Period [Axis]
Accident and health insurance
Life, accident and health insurance
Accident and Health Insurance [Member]
Represents accident and health insurance coverage.
Corporate - public
Corporate - public
Corporate Debt Securities, Public [Member]
Corporate Debt Securities, Public [Member]
Assumptions used to determine fair value of options granted
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Expected future gross premiums, undiscounted
Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Erroneous Compensation Analysis
Erroneous Compensation Analysis [Text Block]
Components of net periodic cost
Pension plans' assets
Defined Benefit Plan Disclosure [Line Items]
Catastrophe losses
Catastrophe
Catastrophe [Member]
Cost/amortized cost, net
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Cost
Investments reported at NAV
Investments measured using the net asset value practical expedient
Alternative Investment
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Effect of actual variances from expected experience
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience
Restatement Determination Date
Restatement Determination Date
Outstanding at the beginning of the period (in dollars per share)
Outstanding at the end of the period (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Cash balance interest credit rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Weighted-Average Interest Crediting Rate
Outstanding at the beginning of the period (in shares)
Outstanding at the end of the period (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Condensed Financial Information Disclosure [Abstract]
Condensed Financial Information Disclosure [Abstract]
Assumed
Assumed Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are assumed and earned from another insurer as a result of reinsurance arrangements.
Thereafter
Mortgage Loans on Real Estate, Maturing after Year Four [Member]
This element represents the real estate property mortgages maturing after the fourth year following the date of the latest balance sheet presented in the financial statements.
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Movement Analysis of Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Short-term investments
Available For Sale Short-Term Investments, Unrealized Gain Included In Other Comprehensive Income
Available For Sale Short-Term Investments, Unrealized Gain Included In Other Comprehensive Income
Remeasurement of plan assets
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Remeasurment Of Plan Assets
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Remeasurment Of Plan Assets
Subsegments [Domain]
Subsegments [Domain]
Other revenue
Other Income
Other comprehensive (loss) income
Other Comprehensive Income (Loss), Tax
Minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed prior to january 1, 1991
Minimum Medical Benefits Portion of Personal Injury Protection Coverage Paid for Reimbursement to Insurers for Policies Issued or Renewed Prior to January 1, 1991
Represents the minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed prior to January 1, 1991.
Reconciliation of the change in the amount of unrecognized tax benefits
Unrecognized Tax Benefits [Roll Forward]
Premium installment receivables, net
Increase (Decrease) in Premiums Receivable
Change in items not yet recognized as a component of defined benefit plans, net periodic cost
Defined Benefit Plan, Accumulated Other Comprehensive Income before Tax [Roll Forward]
Reinsurance, administration assessments paid
Reinsurance, Administration Assessments Paid
Reinsurance, Administration Assessments Paid
Municipal Not Rated by Third Party Credit Rating Agencies
Municipal Not Rated by Third Party Credit Rating Agencies [Member]
Represents the municipal securities not rated by third party credit rating agencies.
Reserve for Future Policy Benefits and Contractholder Funds
Reserve for Future Policy Benefits and Contractholder Funds [Text Block]
Describes the various components of the reserve for Life-Contingent Contract Benefits and Contractholder Funds, the significant assumptions, the causes of significant variances from prior periods and reconciliations of beginning to ending reserve balances. Also includes disclosures of minimum guarantee liabilities and separate accounts.
Maximum retention level for losses related to hurricanes
Reinsurance Retention Level Catastrophes, Maximum
The entity's maximum retention level for personal property losses related to catastrophes related to largest identified and others.
Bank loans
Bank Loans Categorized under Other Investments
Represents the portion of other investments categorized as bank loans, as of the balance sheet date.
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset [Axis]
Entity Public Float
Entity Public Float
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Subtotal
Available for sale Securities, Debt Maturities with Single Maturity Date Fair Value
This item represents the total of all debt securities grouped by maturity dates excluding asset-backed securities, residential mortgage-backed securities and commercial mortgage-backed securities, at fair value, which are classified neither as held-to-maturity nor trading securities.
Accident, health and other policy benefits (including remeasurement (gains) losses of $1, $0, and $(4))
Accident And Health Insurance Contract Benefits, Net of Reinsurance Recoveries
Accident And Health Insurance Contract Benefits, Net of Reinsurance Recoveries
Emergency assessment maximum percentage of premiums subsequent years, FL OIR
Emergency Assessment Maximum Percentage of Premiums Subsequent Years, FL
Emergency Assessment Maximum Percentage of Premiums Subsequent Years, FL OIR
Treasury stock, at cost (635 million and 638 million shares)
Treasury stock, at cost (635 million and 638 million shares)
Treasury Stock, Common, Value
Proceeds from borrowings from subsidiaries
Proceeds from Related Party Debt
Benefit obligation, beginning of year
Benefit obligation, end of year
Pension and other postretirement benefit obligations
Defined Benefit Plan, Benefit Obligation
Accident Year 2023
Short-Duration Insurance Contract, Accident Year 2023 [Member]
Dividends payable to shareholders
Dividends Payable
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year
Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member]
Reinsurance and indemnification recoverables, net
Reinsurance Recoverables, Including Reinsurance Premium Paid
Maximum period for deferment of interest payment
Maximum, Number of Years for Deferring Interest
This element represents the maximum number of years for deferring interest on debt.
Other health and benefit contracts
Other Health And Benefit Contracts [Member]
Other Health And Benefit Contracts
Local Phone Number
Local Phone Number
Loss before equity in net income of subsidiaries
Income (Loss) from Continuing Operations before Income (Loss) from Subsidiaries
Sum of operating profit and non-operating income (expense), net of income taxes, before income (loss) from subsidiaries.
Total debt
Debt, Long-Term and Short-Term, Combined Amount
Aggregate Erroneous Compensation Not Yet Determined
Aggregate Erroneous Compensation Not Yet Determined [Text Block]
Limited partnership interests
Payments to Acquire Interest in Subsidiaries and Affiliates
Short-term investments
Available For Sale Short-Term Investments, Unrealized Loss Included In Other Comprehensive Income
Available For Sale Short-Term Investments, Unrealized Loss Included In Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Ceded to other companies
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Ceded
Current discount rate (upper-medium grade fixed income yield)
Liability for Future Policy Benefit, Current Weighted-Average Discount Rate
Allstate Health and Benefits
Allstate Benefits [Member]
Allstate Benefits [Member]
Aggregate intrinsic value and Weighted average remaining contractual term (years)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
5.350% Senior Notes due 2033
Senior Notes Due 2033 at 5.350 Percent [Member]
Senior notes due 2033 at 5.35 percent interest.
5.250% Senior Notes due 2033
Senior Notes Due 2033 at 5.250 Percent [Member]
Senior Notes Due 2033 at 5.250 Percent
Below investment grade fixed income securities
Below investment grade
Below Investment Grade Fixed Income Securities [Member]
Below investment grade is defined as a security not meeting the criteria for investment grade securities.
Secured Overnight Financing Rate (SOFR)
Secured Overnight Financing Rate (SOFR) [Member]
PEO Total Compensation Amount
PEO Total Compensation Amount
Liability derivatives, gross liability
Gross amount
Derivative Liability, Subject to Master Netting Arrangement, before Offset
Arithmetic average of the annual actual return on plan assets for the last 10 years
Arithmetic Average of Annual Actual Return on Plan Assets for Last 10 Years
This element represents the arithmetic average of the annual actual return on plan assets for the last 10 years.
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag
Fair Value Recurring Basis Unobservable Input Reconciliation Liability Gain Loss Statement Of Income Extensible List Not Disclosed Flag
Schedule III — Supplementary Insurance Information
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Disclosure [Text Block]
Statement of Income Location, Balance [Axis]
Statement of Income Location, Balance [Axis]
Transfer from investments
Transfer from Investments
Amortized cost, net
Debt Securities, Available-for-Sale, Amortized Cost, Rolling Maturity [Abstract]
Assets
Assets, Allowance for Credit Loss
Assets, Allowance for Credit Loss
Condensed Financial Statements [Table]
Condensed Financial Statements [Table]
Claim payments outstanding
Claim Payments Outstanding
Liability as of the balance sheet date for benefit claims that have been paid but the payment has not yet cleared.
National General Holdings
National General Holdings [Member]
National General Holdings
Unassigned surplus excluding unrealized appreciation from investments
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments
Interest expense
Liability for Future Policy Benefit, Interest Expense
Entity Central Index Key
Entity Central Index Key
Pledged by the Company
Margin Deposit Assets
Beginning balance
Ending balance
Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change
Commitments to fund mortgage loans and bank loans
Off-Balance-Sheet, Credit Loss, Liability
Non-PEO NEO Average Compensation Actually Paid Amount
Non-PEO NEO Average Compensation Actually Paid Amount
Award Timing, How MNPI Considered
Award Timing, How MNPI Considered [Text Block]
Financial Instrument [Axis]
Financial Instrument [Axis]
Property and casualty insurance contract, terms
Property And Casualty Insurance Contract, Terms
Property And Casualty Insurance Contract, Terms
Six Contracts
Six Contracts [Member]
Six Contracts
Equity incentive plans activity, net
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Total recurring Level 3 assets
Fair Value Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss) Included in Earnings
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
Expense incurred
Increase (Decrease) in Restructuring Reserve
Balance – beginning of year
Balance – end of year
Unrecognized Tax Benefits
Less: Comprehensive loss attributable to noncontrolling interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
6.750% Senior Notes due 2024
Senior Notes Due 2024 at 6.750 Percent [Member]
Senior Notes Due 2024 at 6.750 Percent
Variable interest entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
City Area Code
City Area Code
Auditor Location
Auditor Location
Insider Trading Policies and Procedures Not Adopted
Insider Trading Policies and Procedures Not Adopted [Text Block]
Reserve Reestimates [Axis]
Reserve Reestimates [Axis]
Reserve Reestimates [Axis]
Homeowners
Homeowners insurance
Home Owners [Member]
Represents homeowners insurance to individuals in United States and Canada.
Equity Incentive Plans [Abstract]
Equity Incentive Plans [Abstract]
Equity Incentive Plans [Abstract]
Dividends Payable [Table]
Dividends Payable [Table]
Schedule of Net Investment Income
Investment Income [Table Text Block]
Fixed income securities, unrealized losses
Debt Securities, Available-for-Sale, Unrealized Loss
Pension and other postretirement remeasurement gains and losses
Pension and Other Postretirement Plans, Policy [Policy Text Block]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Restructuring Reserve
Restructuring Reserve [Roll Forward]
Notional amount of derivatives, maximum percentage of plan assets (as a percent)
Defined Benefit Plan, Asset Allocation, Derivatives, Maximum
Defined Benefit Plan, Asset Allocation, Derivatives, Maximum
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Earnings per common share:
Earnings Per Share [Abstract]
Retained income
Retained Earnings (Accumulated Deficit)
Class of Stock [Domain]
Class of Stock [Domain]
Service cost
Defined Benefit Plan, Service Cost, Net
Defined Benefit Plan, Service Cost, Net
2026
Long-Term Debt, Maturity, Year Two
Aggregate Available
Trading Arrangement, Securities Aggregate Available Amount
Offsetting Assets and Liabilities [Table]
Offsetting Assets and Liabilities [Table]
Disclosure of information about derivative and financial assets and liabilities that are subject to offsetting, including enforceable master netting arrangements.
Equity Awards Adjustments
Equity Awards Adjustments [Member]
Protection Services
Protection Services [Member]
Protection Services
Mortgage loans
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Real Estate [Member]
Purchases, sales and settlements, net
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Purchase, Sale, and Settlement
Underlying Securities
Award Underlying Securities Amount
Performance stock awards
Performance Shares [Member]
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Gain (loss) included in earnings
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings
12 months or more
Twelve Months or More [Abstract]
Roadside assistance
Roadside Assistance [Member]
Roadside Assistance [Member]
Weighted average assumptions used to determine net pension cost and net postretirement benefit cost
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Dividends on common stock (declared per share of $3.68, $3.56 and $3.40)
Dividends, Common Stock, Cash
Amendment Flag
Amendment Flag
Subordinated Debentures
Subordinated Debt [Member]
Unrealized foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Stock Appreciation Rights (SARs)
Stock Appreciation Rights (SARs) [Member]
Number of issues
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions
Cash collateral received as percentage of fair value of domestic securities loaned (as a percent)
Cash Collateral Received for Securities Loaned, Percentage, Domestic
Represents the amount of cash collateral the entity receives for domestic securities loaned, as a percentage of the fair value of the securities.
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]
Debt issuance costs
Debt Issuance Costs, Net
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV [Domain]
Total
Realized Gain (Loss), Fair Value Recognized In Net Income
Realized Gain (Loss), Fair Value Recognized In Net Income
Recovery of Erroneously Awarded Compensation Disclosure [Line Items]
Debt instrument, face amount
Debt Instrument, Face Amount
General business credits carryover
Deferred Tax Assets, Tax Credit Carryforwards, General Business
Technology-Based Intangible Assets
Technology-Based Intangible Assets [Member]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Management fee
Insurance Agency Management Fee
Municipal bonds, tax exempt value
Municipal Debt Securities, at Carrying Value
Net gains (losses) on investments and derivatives
Net gains (losses) on investments and derivatives
Realized Investment Gains (Losses), Continuing Operations
Realized Investment Gains (Losses), Continuing Operations
Schedule of Quarterly Financial Information
Quarterly Financial Information [Table Text Block]
Amortization of deferred policy acquisition costs
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost
Forfeited (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Percentage related to domestic plan
Defined Benefit Plan, Percentage Related To Domestic Plan
Defined Benefit Plan, Percentage Related To Domestic Plan
Short-term, at fair value, amortized cost
Other short term Investments, amortized cost
Other Short Term Investments, Amortized Cost
The amortized cost of short-term investments, net of adjustments for other-than-temporary impairments, if any.
Property and equipment, estimated useful life (in years)
Property, Plant and Equipment, Useful Life
Total asset derivatives, number of contracts
Derivative Asset, Number of Instruments Held
NAIC 2 / BBB
Standard & Poor's, BBB Rating [Member]
Premiums and contract charges
Disposal Group, Including Discontinued Operation, Premiums Earned, Net
Disposal Group, Including Discontinued Operation, Employer Voluntary Benefits Premiums And Contract Charges
Fire
Fire [Member]
Prior year reserve reestimates
Short Term Duration Insurance Contracts, Prior Year Reserve Estimates Increase (Decrease)
Short Term Duration Insurance Contracts, Prior Year Reserve Estimates Increase (Decrease)
Florida Hurricane Catastrophe Fund, Contract Two
Florida Hurricane Catastrophe Fund, Contract Two [Member]
Florida Hurricane Catastrophe Fund, Contract Two
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Net income (loss) applicable to common shareholders, basic
Net income (loss) applicable to common shareholders, basic
Net Income (Loss) Available to Common Stockholders, Basic
Translation adjustment and other
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)
Stock, Class of Stock [Table]
Stock, Class of Stock [Table]
1.0 - 1.25
Debt Service Coverage Ratio below 1.0 to 1.25 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio between 1 to 1.25.
Company's pension plans with ABO in excess of plan assets, aggregate projected benefit obligation
Defined Benefit Plan, Pension Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Projected Benefit Obligation
Total assets
Assets
Assets
Commitments and Contingent Liabilities (Note 8, 10 and 16)
Commitments and Contingencies
Schedule of Reconciliation of the Statutory Federal Income Tax Rate to the Effective Income Tax Rate
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
OTC derivatives
Over-the-Counter [Member]
Unrealized net capital gains and losses
Unrealized net capital gains and losses, after-tax
AOCI, Debt Securities, Available-for-Sale, Adjustment, after Tax
Depositary Shares represent 1/1,000th of a share of 7.375% Noncumulative Preferred Stock, Series J
Series J Preferred Stock [Member]
Series J Preferred Stock
Credit losses
Total fixed income securities
Allowance for Credit Loss, Credit Loss Recognized In Net Income
Allowance for Credit Loss, Credit Loss Recognized In Net Income
Other liabilities
Other liabilities and accrued expenses
Other Liabilities
Net amount
Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Derivatives not designated as accounting hedging instruments
Not Designated as Hedging Instrument [Member]
Schedule of Gain (Loss) on Securities [Table]
Schedule of Gain (Loss) on Securities [Table]
Debt Instrument [Axis]
Debt Instrument [Axis]
Trading Arrangement:
Trading Arrangement [Axis]
Schedule of Supplemental Cash Flow Information
Schedule of Supplemental Cash Flow Information from Collateralized Securities Received [Table Text Block]
This element may be used to capture the complete disclosure pertaining to supplemental cash flow information about collateral received.
Schedule of Financial Instruments Not Carried at Fair Value
Fair Value, by Balance Sheet Grouping [Table Text Block]
Fixed income and short-term investments carrying value
Assets Held by Insurance Regulators
2030-2034
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years
Effect of changes in cash flow assumptions
Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) from Cash Flow Change
Schedule of Pension Plan Weighted Average Target Asset Allocation by Asset Category
Schedule of Allocation of Plan Assets [Table Text Block]
Equity Awards Adjustments, Excluding Value Reported in Compensation Table
Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member]
Total costs and expenses
Benefits, Losses and Expenses
Entity File Number
Entity File Number
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Noncontrolling interest
Noncontrolling Interest [Member]
Entity Address, Address Line One
Entity Address, Address Line One
Components of income tax expense (benefit)
Components of Income Tax Expense (Benefit), Continuing Operations [Abstract]
Lease, term of contract (in years)
Lessee, Operating Lease, Term of Contract
Restructuring Plan [Domain]
Restructuring Plan [Domain]
Mortgage Acquisition Period [Domain]
Mortgage Acquisition Period [Domain]
[Domain] for Mortgage Acquisition Period [Axis]
Derivative instruments
Derivative Instruments, Unrealized Loss Included in Other Comprehensive Income
The amount of unrealized losses included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date.
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Investments in subsidiaries
Investment in Subsidiaries
The entity's equity interest in its subsidiaries.
Reinsurance Agreement [Domain]
Reinsurance Agreement [Domain]
Reinsurance Agreement
Award Timing MNPI Considered
Award Timing MNPI Considered [Flag]
Decrease for tax positions taken in a prior year
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Denominator:
Denominator [Abstract]
Series G
Series G Noncumulative Preferred Stock [Member]
Series G Noncumulative Preferred Stock [Member]
Bank Loan Acquisition Period [Axis]
Bank Loan Acquisition Period [Axis]
Bank Loan Acquisition Period [Axis]
Nonqualified stock options
Non qualified Stock Options [Member]
The entity's nonqualified stock options program for the purpose of awarding stock-based compensation.
Fair Value Balance Sheet Grouping Financial Statement Captions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total investments
Disposal Group Including Discontinued Operation, Investments
Disposal Group Including Discontinued Operation, Investments
PEO Actually Paid Compensation Amount
PEO Actually Paid Compensation Amount
Effect of dilutive potential common shares
Dilutive Securities, Effect on Basic Earnings Per Share [Abstract]
Adjustment to Compensation:
Adjustment to Compensation [Axis]
Write-offs
Reinsurance, Loss on Uncollectible Accounts in Period, Amount
Liability derivatives
Derivative Liability [Abstract]
Other investments
Proceeds from Maturities, Prepayments and Calls of Other Investments
Financial liabilities
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Amounts recognized for:
Amount Recognized in Unrealized Net Capital Gains and Losses [Abstract]
Amount Recognized in Unrealized Net Capital Gains and Losses
Interest expense
Interest Expense, Operating
Vesting period of options granted
Share based Compensation Arrangement by Share based Payment Award, Award Vesting Period before 2010
The period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, for awards granted prior to 2010.
Policy loans
Policy Loans [Member]
Free-standing derivatives, other assets
Free Standing Derivative Other Assets [Member]
Free Standing Derivative Other Assets
Contractholder fund deposits
Additions to Contract Holders Funds
6.500% Junior Subordinated Debentures, due 2067
Junior Subordinated Debentures Due 2067 at 6.50 Percent [Member]
Junior Subordinated Debentures due 2067 at 6.50 percent.
Other investments
Other Investments, Fair Value, Gross Liability and Obligation to Return Cash, Offset
Other Investments, Fair Value, Gross Liability and Obligation to Return Cash, Offset
Document Information [Table]
Document Information [Table]
Total equity
Balance, beginning of year
Balance, end of year
Equity, Including Portion Attributable to Noncontrolling Interest
Other liabilities
Other Liabilities, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Other Liabilities, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Target asset allocation
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Entity Filer Category
Entity Filer Category
Additional members of the board of directors
Additional Members of Board of Directors
The amount of additional members of the board of directors to be elected by preferred stock holders if and when dividends have not been declared and paid in full for at least six quarterly dividend periods or their equivalent (whether or not consecutive).
Corporate and Other
Corporate Segment and Other Operating Segment [Member]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Gross unrealized losses
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Derivatives, Fair Value
Derivatives, Fair Value [Line Items]
Policy benefits and other insurance reserves
Increase (Decrease) in Future Policy Benefit Reserves and Other Insurance Liabilities
Pacific Valley Insurance Company, Inc.
Pacific Valley Insurance Company, Inc. [Member]
Pacific Valley Insurance Company, Inc.
Lloyds of London
Lloyds of London [Member]
Represents the reinsurer Lloyd's of London.
Personal Lines
Personal Lines [Member]
Personal Lines [Member]
Compensation Actually Paid vs. Net Income
Compensation Actually Paid vs. Net Income [Text Block]
Credit losses on securities for which credit losses not previously reported
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Not Previously Recorded
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity, Primary Beneficiary [Member]
Contractholder funds on investment contracts
Contractholder Funds on Investment Contracts
Represents contract holder funds on investment contracts as of the balance sheet date.
Foreign currency forwards
Foreign Currency Forwards [Member]
Represents information pertaining to contracts negotiated between two parties to purchase and sell a specific quantity of foreign currency at a price specified at origination of the contract, with delivery and settlement at a specified future date.
Experience adjustment
Deferred Policy Acquisition Cost and Present Value of Future Insurance Profit, Experience Adjustment
Peer Group Total Shareholder Return Amount
Peer Group Total Shareholder Return Amount
Reinsurance recoverables
SEC Schedule, 12-09, Allowance, Reinsurance Recoverable [Member]
Received by the Company
Margin Deposit Liabilities
Margin Deposit Liabilities
Due in one year or less
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Amortized Cost
Schedule of Volume and Fair Value Positions of Derivative Instruments
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Expected future benefits and expenses, discounted
Liability for Future Policy Benefit, Expected Future Policy Benefit, Discounted, before Reinsurance
Liability for Future Policy Benefit, Expected Future Policy Benefit, Discounted, before Reinsurance
Other operating assets and liabilities
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Proceeds of revenue bonds
Proceeds of Revenue Bonds
Proceeds of Revenue Bonds
2027
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Schedule of Fair Value of Derivative Instruments with Termination, Cross-Default or Collateral Credit-Risk-Contingent
Schedule of Derivative Instruments Credit Features in Liability Position and Netting [Table Text Block]
Schedule of fair value of derivative instruments with termination, cross-default or collateral credit-risk-contingent features that are in a liability position and the fair value of assets and collateral that are netted against the liability.
Group and individual accident and health short-duration contracts
Group And Individual, Short Duration Accident And Health [Member]
Group And Individual, Short Duration Accident And Health
Total
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax
Goodwill
Goodwill [Line Items]
Pension and other postretirement remeasurement (gains) losses
Pension and other postretirement remeasurement gains (losses)
Remeasurement (gains) losses
Defined Benefit Plan, Actuarial Gain (Loss), Immediate Recognition as Component in Net Periodic Benefit (Cost) Credit
4 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Four, Net
Short-Duration Insurance Contracts, Historical Claims Duration, Year Four, Net
Income taxes
Increase (Decrease) in Income Taxes
Reserve for future policy benefits
Liability for Future Policy Benefit, before Reinsurance
Common stock reserved for further issuance (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Benefits paid
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Effects of Reinsurance [Table]
Effects of Reinsurance [Table]
Series J
Series J Noncumulative Preferred Stock [Member]
Series J Noncumulative Preferred Stock
Unrealized net capital gains and losses
Other Comprehensive Income (Loss), Available for Sale Securities, Including Other than Temporary Impairment Losses Adjustment, Net of Tax
Other Comprehensive Income (Loss), Available for Sale Securities, Including Other than Temporary Impairment Losses Adjustment, Net of Tax
Loss of the surplus notes
Gain (Loss) On Notes Payable
Gain (Loss) On Notes Payable
Entity Tax Identification Number
Entity Tax Identification Number
Traditional Market, Placement One
Traditional Market
Traditional Market, Placement One [Member]
Traditional Market, Placement One
Increase for tax positions taken in a prior year
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions
Catastrophe reinsurance loss limits per contract year
Catastrophe Reinsurance Loss Limits Per Contract Year
Catastrophe Reinsurance Loss Limits Per Contract Year
Cash collateral (received) pledged
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset
Retirement Plan Type [Axis]
Retirement Plan Type [Axis]
Ultimate health care cost trend rate in 2035 and thereafter (as a percent)
Defined Benefit Plan, Ultimate Health Care Cost Trend Rate
Treasury stock
Treasury Stock, Common [Member]
Current income tax payable
Taxes Payable, Current
Earnings per common share:
Earnings Per Share Reconciliation [Abstract]
Operating costs and expenses
Other operating expenses
Other Cost and Expense, Operating
Retail
Retail Site [Member]
Equity Components [Axis]
Equity Components [Axis]
Warehouse
Warehouse [Member]
Exit costs
Facility Closing [Member]
Effects of Reinsurance [Line Items]
Reinsurance
Effects of Reinsurance [Line Items]
Property and casualty
Property and casualty insurance
Property and Casualty [Member]
Property and Casualty
Total asset derivatives, notional amount
Derivative Asset, Notional Amount
Balance at beginning of period
Balance at end of period
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Schedule of Rollforward of Level 3 Assets and Liabilities Held at Fair Value
Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Input Reconciliation [Table Text Block]
This element represents, for the fair value measurement of assets and liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issuances, and settlements (net); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs).
Costs and expenses
Costs and Expenses
Term of catastrophe reinsurance agreement contract (in years)
Catastrophe Reinsurance Agreement Contract, Term
Represents the period of catastrophe reinsurance agreement contract.
Aggregate intrinsic value, outstanding
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Direct
Gross amount
Direct Premiums Earned
NAIC 1 / A
Standard & Poor's, A Rating [Member]
Geographical [Axis]
Geographical [Axis]
Schedule of Organizational Transformation
Restructuring and Related Costs [Table Text Block]
Net deferred tax assets
Deferred Tax Assets, Net
Interest credited
Interest to Contract Holder Funds
Increase in the liability for policyholder contract deposits resulting from interest credited during the period by the insurer to policy owner accounts.
Expected weighted average long-term rate of return on primary employee plan assets for the next fiscal year
Defined Benefit Plan Assumptions Used for Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year Primary Employee Plan
Represents the long-term rate of return on plan assets for the next fiscal year for the primary employee plan, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
Adjustments to liability
Restructuring Reserve, Accrual Adjustment
Property insurance (as a percent)
Percentage Of Property Insurance, Thereafter
Percentage Of Property Insurance, Thereafter
Residential Mortgage
Residential Mortgage [Member]
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Schedule of Available for Sale Securities
Debt Securities, Available-for-Sale [Line Items]
Prior years
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Investments
Debt Securities And Financing Receivables, Allowance for Credit Loss
Debt Securities And Financing Receivables, Allowance for Credit Loss
Loss from operations before income tax benefit and equity in net income of subsidiaries
Income (Loss) from Continuing Operations before Income Taxes and Income (Loss) from Subsidiaries
Sum of operating profit and non-operating income (expense) before income taxes and income (loss) from subsidiaries.
Payments and non-cash charges
Payments for Restructuring
Schedule of Reportable Segments Financial Performance
Schedule of Business Segments Net Income (Loss) Disclosure [Table Text Block]
The schedule of net income (loss) by segment.
Defined contribution plan expense for eligible employees of canadian insurance subsidiaries and Sterling
Defined Contribution Plan Expense for Eligible Employees of Certain Subsidiaries
This element represents the defined contribution plans expenses for eligible employees of certain subsidiaries.
Risks and uncertainties
Risks And Uncertainties, Policy [Policy Text Block]
Risks And Uncertainties, Policy [Policy Text Block]
Consolidation Items [Axis]
Consolidation Items [Axis]
Deferred policy acquisitions costs
Disposal Group, Including Discontinued Operation, Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Disposal Group, Including Discontinued Operation, Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Retention level for losses related to other hurricanes
Reinsurance Retention Level, Other Catastrophes
The entity's retention level for personal property losses related to catastrophes other than the largest identified.
Unrecognized tax benefits, interest on income taxes accrued
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Gains (losses) included in net income for Level 3 assets and liabilities:
Fair Value Assets and Liabilities Measured on Recurring Basis Unobservable Inputs Gain (Loss) [Line Items]
Beginning balance at original discount rate
Ending balance at original discount rate
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance
Insurance Product Line [Domain]
Product and Service [Domain]
Maximum amount of dividends without prior approval
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval
Vested (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
Percentage of surcharge on property insurance policy statewide to be remitted to the plan
Percentage of Surcharge on Property Insurance Policy Statewide to be Remitted
Represents the percentage of surcharge on each property insurance policy statewide to be remitted to the plan.
Relating to assets still held at the reporting date
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Still Held
Total included in net income
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss)
Apartment complex
Apartment Building [Member]
Preferred stock
Preferred Stock, Including Additional Paid in Capital [Abstract]
Group and individual accident and health
Group And Individual Health Benefits [Member]
Group And Individual Health Benefits
Direct
Direct Premiums Written
Preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Catastrophe claims, pre-tax loss before reinsurance, threshold
Catastrophe Claims, Pre-Tax Loss Before Reinsurance, Threshold
Catastrophe Claims, Pre-Tax Loss Before Reinsurance, Threshold
Catastrophe Reinsurance Program
Catastrophe Reinsurance Program [Member]
Catastrophe Reinsurance Program [Member]
Realized capital gains and losses by asset type
Gain (Loss) on Securities [Line Items]
Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
5.950% Senior Notes, due 2036
Senior Notes Due 2036 at 5.950 Percent [Member]
Senior notes due 2036 at 5.95 percent interest.
Tax-exempt income
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Amount of commercial paper outstanding
Short-Term Debt
Schedule of Amortized Cost, Gross Unrealized Gains (Losses) and Fair Value for Fixed Income Securities
Debt Securities, Available-for-Sale [Table Text Block]
Common stock, shares, issued (in shares)
Common Stock, Shares, Issued
Other assets
Other Assets [Member]
Line of credit, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Tax-exempt income
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
Total unrealized losses
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss
Premium installment receivable
SEC Schedule, 12-09, Allowance, Uncollectible Premium Receivable [Member]
Total liability derivatives, fair value, net
Net amount on balance sheet
Derivative Liability
Accumulated depreciation on property and equipment
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Cash
Cash
Relating to assets sold during the period
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Actual Return (Loss) on Plan Assets Sold
Liability for Future Policy Benefit, by Product Segment [Table]
Liability for Future Policy Benefit, by Product Segment [Table]
Company's Pension Plans with an ABO in excess of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Traditional Market, Placement Three
Traditional Market, Placement Three [Member]
Traditional Market, Placement Three
Life insurance in force
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net [Abstract]
Schedule of Rollforward of Reserve for Future Policy Benefits and Revenue and Interest Recognized and Undiscounted and Discounted Expected Gross Premiums and Expected Future Benefits and Expenses and Key Assumptions Used in Calculating the Reserve for Future Policy Benefits
Schedule of Liability for Future Policy Benefits, by Product Segment [Table Text Block]
Underwriting income (loss) by segment
Underwriting Gain (Loss)
A measure that is not based on GAAP, which is calculated as premiums earned, less claims and claims expense ("losses"), amortization of deferred policy acquisition costs ("DAC"), operating costs and expenses and restructuring and related charges, as determined using GAAP.
Total liability derivatives, notional amount
Derivative Liability, Notional Amount
Subtotal
Available for sale Securities, Debt Maturities with Single Maturity Date Amortized Cost
This item represents the total of all debt securities grouped by maturity dates excluding asset-backed securities, residential mortgage-backed securities and commercial mortgage-backed securities, at cost, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any, which are classified neither as held-to-maturity nor trading securities.
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Deferred
Deferred Income Tax Expense (Benefit)
New Jersey Unsatisfied Claim and Judgment Fund
New Jersey Unsatisfied Claim Judgment Fund [Member]
Represents the information pertaining to The New Jersey Unsatisfied Claim Judgment Fund.
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Pension and other postretirement (benefit) expense
Pension and Other Postretirement Benefits Cost (Reversal of Cost)
Premiums written (excluding life)
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Written
Other comprehensive (loss) income, after-tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Discount rate for reserve for future policy benefits
Change in discount rate for reserve for future policy benefits
OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment and Tax
Short-term, at fair value (amortized cost $85)
Disposal Group Including Discontinued Operation, Other Short Term Investments
Disposal Group Including Discontinued Operation, Other Short Term Investments
Short-term investments
Defined Benefit Plan, Short-term Investments [Member]
Defined Benefit Plan, Short-term Investments [Member]
Pension Adjustments Prior Service Cost
Pension Adjustments Prior Service Cost [Member]
Fair value of plan assets, beginning of year
Fair value of plan assets, end of year
Total reported plan assets
Defined Benefit Plan, Plan Assets, Amount
Thereafter
Long-Term Debt, Maturity, after Year Five
Amortized cost before allowance
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss
% of total assets at fair value
Assets as Percent of Assets Measured at Fair Value
Assets as a percent of total assets measured at fair value on a recurring and non-recurring basis.
Commercial Paper
Commercial Paper [Member]
Pension Benefits Adjustments, Footnote
Pension Benefits Adjustments, Footnote [Text Block]
Catastrophe reinsurance loss amount
Catastrophe Reinsurance Loss Amount
Catastrophe Reinsurance Loss Amount
Average cost of reacquired shares (in dollars per share)
Shares Acquired, Average Cost Per Share
Document Annual Report
Document Annual Report
Insurance Placements [Domain]
Insurance Placements [Domain]
Insurance Placements [Domain]
Real estate (none acquired in satisfaction of debt)
Real Estate Investment [Member]
2022
Acquisition, 2022 [Member]
Acquisition, 2022
Non-cash investing activities, debt assumed
Non-cash Investing Activities, Debt Assumed by Purchaser on Sale of Real Estate
Non-cash Investing Activities, Debt Assumed by Purchaser on Sale of Real Estate
Commitments to fund mortgage loans and bank loans
Loan Origination Commitments [Member]
Net transfers in (out) of Level 3
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Assets Transferred into (out of) Level 3
Amortization of purchased intangibles
Amortization of purchased intangibles
Amortization of Intangible Assets
Recognition of premium revenues and contract charges, and related benefits and interest credited
Insurance Premiums Revenue and Related Benefits Recognition [Policy Text Block]
Describes an insurance entity's accounting policy for premium and contract charges revenue recognition, including the basis for measurement and the timing of recognition of revenue from insurance premiums and fees received from contractholders. Also describes an insurance entity's accounting policy for recognition of related benefits expenses and interest credited to contract holder accounts.
Valuation allowances and qualifying accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Non-US
Non-US [Member]
Less: Preferred stock dividends
Preferred stock dividends
Preferred Stock Dividends, Income Statement Impact
2023
Acquisition, 2023 [Member]
Acquisition, 2023
Current Fiscal Year End Date
Current Fiscal Year End Date
Balance as of beginning of period
Balance as of end of period
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Less: interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Unrealized net holding gains and losses arising during the period, net of related offsets
Other Comprehensive Income (Loss) before Reclassifications, Tax
Reissued net shares under equity incentive plans (in shares)
Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture
Other liabilities
Other Sundry Liabilities
Finite-lived intangible asset, useful life (in years)
Finite-Lived Intangible Asset, Useful Life
Common stock additional capital paid-in
Additional Paid-in Capital [Member]
Other assets
Disposal Group, Including Discontinued Operation, Other Assets
Class of Stock [Line Items]
Class of Stock [Line Items]
Commitments to fund commercial mortgage loans and bank loans
Unfunded Loan Commitments
Unfunded Loan Commitments
Class of Stock [Axis]
Class of Stock [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Type of Restructuring [Domain]
Type of Restructuring [Domain]
Income tax paid
Income Taxes Paid
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Employee costs
Employee Severance [Member]
Unearned premium, year one
Financial Guarantee Insurance Contract, Premium Revenue to be Recognized, Year One
Weighted-average duration (in years)
Liability for Future Policy Benefit, Weighted-Average Duration
Preferred stock redemption
Stock Redeemed or Called During Period, Value
Counterparty and cash collateral netting
Derivative Liability, Fair Value, Gross Asset and Right to Reclaim Cash, Offset
Note stated interest rate (as a percent)
Stated interest rate (as a percent)
Debt Instrument, Interest Rate, Stated Percentage
Net gains (losses) on investments and derivatives
Realized Capital Gains (Losses), Continuing Operations
Realized Capital Gains (Losses), Continuing Operations
North Carolina Joint Underwriters Association
North Carolina Joint Underwriters Association [Member]
Represents information pertaining to North Carolina Joint Underwriters Association.
Investment [Line Items]
Schedule of Investments [Line Items]
Protection and insurance products
Protection And Insurance Products [Member]
Finance And Insurance Products [Member]
California Fair Plan Association
California FAIR Plan Association [Member]
California FAIR Plan Association
Schedule of Fair Values of Pension Plan Assets
Schedule of Fair Value of Plan Assets by Measurement Levels [Table Text Block]
Disclosure of fair value of the defined benefit plan assets by level within the fair value hierarchy in which the fair value measurements fall, segregating the fair value measurements using quoted prices in active markets for identical assets or liabilities (Level 1), significant other observable inputs (Level 2) and significant unobservable inputs (Level 3).
Dividend rate
Preferred Stock, Dividend Rate, Percentage
Schedule V — Valuation Allowances and Qualifying Accounts
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Below 1.0
Debt Service Coverage Ratio below 1.0 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio below 1.
Total
Operating Income (Loss)
Schedule of Gross Unrealized Losses by Unrealized Loss Position and Credit Quality
Financing Receivable Credit Quality Indicators [Table Text Block]
Variable Rate [Domain]
Variable Rate [Domain]
Fixed income securities
SEC Schedule, 12-09, Allowance, Fixed Income Securities [Member]
SEC Schedule, 12-09, Allowance, Fixed Income Securities
Change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Total liabilities and equity
Liabilities and Equity
Rule 10b5-1 Arrangement Terminated
Rule 10b5-1 Arrangement Terminated [Flag]
Ceded
Property-liability insurance premiums earned
Ceded to other companies
Ceded Premiums Earned
Due after five years through ten years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Fair Value
DAC
Deferred Tax Liabilities, Deferred Expense, Deferred Policy Acquisition Cost
Number of storms
Number of Storms
Number of Storms
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Right-of-use asset obtained in exchange for operating lease liability
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Underlying Security Market Price Change
Underlying Security Market Price Change, Percent
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Real property
Building and Building Improvements [Member]
Forfeited (in dollars per share)
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price
Additional balance sheet disclosures:
Balance Sheet Related Disclosures [Abstract]
Weighted average expected term
Expected term
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term
Liabilities held for sale
Total liabilities held for sale
Disposal Group, Including Discontinued Operation, Liabilities
Insurance Product Line [Axis]
Product and Service [Axis]
American Heritage Life Insurance Company and American Heritage Service Company
American Heritage Life Insurance Company and American Heritage Service Company [Member]
American Heritage Life Insurance Company and American Heritage Service Company
Property and equipment
Property, Plant and Equipment [Line Items]
Statement
Statement [Line Items]
Deferred income taxes
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax
Securities lending transactions length (in days)
Securities Lending Transactions Term
The usual duration of the entity's securities lending transactions.
Property-liability insurance claims and claims expense
Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
3.280% Senior Notes, due 2026
Senior Notes, Due 2026 at 3.280 Percent [Member]
Senior Notes, Due 2026 at 3.28 Percent [Member]
Aggregate intrinsic value, net of expected forfeitures, outstanding
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding Net of Expected Forfeitures Intrinsic Value
The total dollar difference between fair values of the underlying shares reserved for issuance and exercise prices pertaining to options outstanding under the plan as of the balance-sheet date, net of expected forfeitures.
Derivative and embedded derivative financial instruments
Derivatives, Policy [Policy Text Block]
Measurement of credit losses
Credit Loss, Financial Instrument [Policy Text Block]
Maximum reimbursement to insurers for medical benefits paid under personal injury protection coverage.
Maximum Reimbursement to Insurers for Medical Benefits Portion of Personal Injury Protection Coverage
Represents the maximum portion reimbursement to insurers for medical benefits paid under the personal injury protection coverage.
Minimum
Minimum [Member]
Adoption Date
Trading Arrangement Adoption Date
Other
Other, Reserve Reestimates [Member]
Other, Reserve Reestimates [Member]
Amortization of deferred policy acquisition costs
Amortization of DAC
Amortization of DAC
Deferred Policy Acquisition Costs, Amortization Expense
ULAE
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Claims Adjustment Expense, Accumulated Unallocated Claim Adjustment Expense
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year
Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member]
Tax Period [Axis]
Tax Period [Axis]
Statutory federal income tax rate on income from operations
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Exercise Price
Award Exercise Price
Schedule of Components of the Deferred Income Tax Assets and Liabilities
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Arrangement Duration
Trading Arrangement Duration
Net gains (losses) on investments and derivatives
Realized Investment Gains (Losses), Continuing Operations [Member]
Realized Investment Gains (Losses), Continuing Operations
Operating loss carryforwards
Operating Loss Carryforwards
Insurance Linked Securities (ILS)
Insurance Linked Securities [Member]
Insurance Linked Securities
Schedule of Gross Realized Gains (Losses) on Sales of Fixed Income Securities
Schedule Of Gross Realized Gains (Losses) On Sales Of Fixed Income Securities [Table Text Block]
Schedule Of Gross Realized Gains (Losses) On Sales Of Fixed Income Securities [Table Text Block]
Retention level for losses related to hurricanes
Reinsurance Retention Level, Largest Catastrophes
The entity's retention level for personal property losses related to the largest identified catastrophes.
Retention percentage of reinsurance limit
Catastrophe Insurance, Annual Coverage Limit Retention Percentage
Represents the retention percentage of annual coverage limit provided by the insurance arrangement for catastrophe claims.
Subsidiaries
Subsidiaries [Member]
Discount on loss reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Loss Reserves
Fair value
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Accident and health insurance long-duration contracts
Accident And Health Insurance, Long Duration Contracts, Accident And Health [Member]
Accident And Health Insurance, Long Duration Contracts, Accident And Health
Material Terms of Trading Arrangement
Material Terms of Trading Arrangement [Text Block]
Reserve for property and casualty insurance claims and claims expense and Reserve for future policy benefits
Reserve for Property Liability and Future Policy Benefits [Policy Text Block]
Describes the accounting policy for amounts needed to provide for the estimated ultimate cost of settling property insurance claims relating to insured events that have occurred on or before a particular date (ordinarily, the statement of financial position date). Also describes the accounting policy for an insurance entity's net liability for future benefits (for example, death, cash surrender value) to be paid to or on behalf of policyholders, describing the bases, methodologies and components of the reserve, and assumptions regarding estimates of expected investment yields, mortality, morbidity, terminations and expenses.
Kennett Capital Inc
Kennett Capital Inc [Member]
Represents information pertaining to Kennett Capital Inc. , an unconsolidated affiliate of the entity.
Protection Plans and Other Contracts
Protection Plans and Other Contracts [Member]
Protection Plans and Other Contracts [Member]
Auto insurance - liability coverage
Auto insurance – liability coverage
Auto Insurance, Liability Coverage [Member]
Auto Insurance, Liability Coverage [Member]
Variable Rate [Axis]
Variable Rate [Axis]
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Translation adjustment and other
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)
Amortization charged to income
Deferred Policy Acquisition Costs, Amortization Charged to Income
Deferred Policy Acquisition Costs, Amortization Charged to Income
Other investments, net
Investments held for sale
Other investments
Other Investments
National General Florida Hurricane Catastrophe Program
National General Florida Hurricane Catastrophe Program [Member]
National General Florida Hurricane Catastrophe Program
Postretirement benefits
Other Postretirement Benefits Plan [Member]
Intangible assets by type
Intangible Assets, Net (Excluding Goodwill)
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Uncertain tax positions
Effective Income Tax Rate Reconciliation, Uncertain Tax Position, Percent
Effective Income Tax Rate Reconciliation, Uncertain Tax Position, Percent
Retained earnings accumulated deficit decrease
Retained Earnings Accumulated Deficit Increase (Decrease)
Represents the increase (decrease) in the amount of accumulated earnings or deficit during the period.
IBNR reserves plus expected development on reported claims
Short-Duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net
Auto
Auto [Member]
Represents total auto coverage.
Subordinated Debentures Due August 14, 2023
Subordinated Debentures Due August 14, 2023 [Member]
Subordinated Debentures Due August 14, 2023
Incurred claims and claims expense related to:
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract]
Assets
Assets, Fair Value Disclosure [Abstract]
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
Related Party [Domain]
Related and Nonrelated Parties [Domain]
Restructuring Cost and Reserve [Line Items]
Restructuring Cost and Reserve [Line Items]
Equity in net income (loss) of subsidiaries
(Income) Loss From Subsidiaries
(Income) Loss From Subsidiaries
Other-than-temporary impairment losses by asset type
Other than Temporary Impairment Losses by Asset Type [Line Items]
CEA existing reinsurance layer
State Facility Existing Reinsurance Layer
Represents funding obtainable by a state insurance facility from an existing reinsurance layer in the event that losses cause a deficit.
Period within which threshold percentage of outstanding principal of debentures is to be purchased for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Period within which Threshold Percentage of Outstanding Principal Debt is Repurchased or Redeemed
Represents the period within which the threshold percentage of outstanding principal of debt is to be purchased for non applicability of promises and covenants contained in the replacement capital covenants.
3.850% Senior Notes, due 2049
Senior Notes Due 2049 at 3.850 percent [Member]
Senior Notes Due 2049 at 3.85 percent [Member]
Proceeds from loans to subsidiaries
Proceeds From Collection Of Advance To Subsidiaries
Proceeds From Collection Of Advance To Subsidiaries
Risk-free rate, high end of the range (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum
Unamortized pension and other postretirement prior service credit
Change in unamortized pension and other postretirement prior service credit
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Thereafter
Finite-Lived Intangible Asset, Expected Amortization, after Year Five
Shares reissued under equity incentive plans, net
Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Increase for tax positions taken in the current year
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Total benefit payments
Defined Benefit Plan, Aggregate Expected Future Benefit Payments
The amount of the total benefits expected to be paid.
2025
Defined Benefit Plan, Expected Future Benefit Payment, Year One
Net reserve for future policy benefits, after reinsurance recoverables
Liability For Future Policy Benefit, Excluding Short-Duration Contracts, After Reinsurance
Liability For Future Policy Benefit, Excluding Short-Duration Contracts, After Reinsurance
Number of issues
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions
Operating lease, right-of-use asset, extensible enumeration
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]
Fair value
Fair Value Securities [Abstract]
Other
Other investments
Other Investments [Member]
Run-off Property-Liability
Run-Off Property-Liability [Member]
Run-Off Property-Liability
Other
Other assets
Other Security Investments [Member]
Lessee, Lease, Description [Table]
Lessee, Lease, Description [Table]
Expected volatility, low end of the range (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum
Derivatives counterparty and cash collateral netting
Defined Benefit Plan, Derivatives Counterparty and Cash Collateral Netting
Defined Benefit Plan, Derivatives Counterparty and Cash Collateral Netting
Equity Component [Domain]
Equity Component [Domain]
Preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Traditional Market, Placement Two
Traditional Market, Placement Two [Member]
Traditional Market, Placement Two
Investment income, before expense
Interest and Dividend Income, Operating
Employer voluntary benefits
Employer Voluntary Benefits [Member]
Employer Voluntary Benefits
Additional 402(v) Disclosure
Additional 402(v) Disclosure [Text Block]
Less: reclassification adjustment of realized capital gains and losses
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Entity Shell Company
Entity Shell Company
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
Paid and due from reinsurers and indemnitors
Reinsurance Recoverable for Paid Claims and Claims Adjustments
Dividend received deduction
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent
Excess redemption price over carrying value
Preferred Stock Dividends Income Statement Impact, Redemption Price In Excess Of Carrying Value
Preferred Stock Dividends Income Statement Impact, Redemption Price In Excess Of Carrying Value
Debt securities below investment grade
Debt Securities below Investment Grade
Below investment grade assets included in fixed income securities.
Counterparty Name [Axis]
Counterparty Name [Axis]
Measurement Frequency [Domain]
Measurement Frequency [Domain]
Real estate
Real Estate [Member]
Consolidation Items [Domain]
Consolidation Items [Domain]
Settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements
Premium earned as percentage of consolidated revenues
Premium Earned as Percentage of Consolidated Revenues
This element represents the amount of premiums earned as a percentage of consolidated revenues.
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Senior Notes
Senior Notes [Member]
Investments
Deferred Tax Liabilities, Difference in Tax Bases of Invested Assets
Deferred Tax Liabilities, Difference in Tax Bases of Invested Assets
Outstanding, exercisable ("vested") (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Short term, amortized cost
Disposal Group, Including Discontinued Operation, Other Short Term Investments, Amortized Cost
Disposal Group, Including Discontinued Operation, Other Short Term Investments, Amortized Cost
Corporate - privately placed
Corporate Debt Securities, Private Placement [Member]
Corporate Debt Securities, Private Placement [Member]
Operating assets and liabilities
Increase (Decrease) in Operating Capital
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Financial assets
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Quarterly Results (unaudited)
Quarterly Financial Information [Text Block]
Net income (loss)
Statutory Accounting Practices, Statutory Net Income Amount
Assets
Assets [Member]
Weighted average grant date fair value of options granted (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Short-duration Insurance Contracts, Accident Year [Axis]
Short-Duration Insurance Contracts, Accident Year [Axis]
North Carolina Insurance Underwriting Association
North Carolina Insurance Underwriting Association [Member]
Represents information pertaining to North Carolina Insurance Underwriting Association.
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Other Intangible Assets
Other Intangible Assets [Member]
2028
Lessee, Operating Lease, Liability, to be Paid, Year Four
Other net plan assets
Defined Benefit Plan, Other Plan Assets (Liabilities), Fair Value
Represents other net assets of the plan, including interest and dividends receivable and net receivables related to settlements of investment transactions, such as purchases and sales.
Capital Structure
Capital Structure Disclosure [Text Block]
The entire disclosure on debt and capital stock. The disclosure on debt includes information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. Also includes the entire disclosure on preferred stock for terms, amounts, nature of changes, rights and privileges, dividends, and other matters related to preferred stock.
Net Investment Income [Line Items]
Net Investment Income [Line Items]
Long-duration accident and health insurance
Long Duration Accident And Health Insurance [Member]
Long Duration Accident And Health Insurance
Schedule of Components of the Net Operating Loss Carryforwards
Summary of Operating Loss Carryforwards [Table Text Block]
Weighted average discount rate
Operating Lease, Weighted Average Discount Rate, Percent
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Schedule of Deferred Policy Acquisition Costs Activity
Deferred Policy Acquisition Costs [Table Text Block]
Discount rate for reserve for future policy benefits
AOCI, Liability For Future Policy Benefit, Discount Rate, Before Tax
AOCI, Liability For Future Policy Benefit, Discount Rate, Before Tax
Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Liability for Unpaid Claims and Claims Adjustment Expense [Table]
Schedule of the activity in the reserve for settling insured claims and expenses incurred in the claims settlement process for the period.
Fair Value as of Grant Date
Award Grant Date Fair Value
Schedule of Reportable Segment Total Assets, Investments and Deferred Policy Acquisition Costs
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
Florida Hurricane Catastrophe Fund
Florida Hurricane Catastrophe Fund [Member]
Represents the Florida Hurricane Catastrophe Fund.
Fair Value, Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Fair Value, Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Preferred stock issuance, net of issuance costs
Stock Issued During Period, Value, New Issues
Organizational Transformation
Organizational Transformation [Member]
Organizational Transformation
Due after ten years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Amortized Cost
Minimum principal outstanding amount for redemption of debt in whole or in part
Debt Instrument, Minimum Aggregate Principal Outstanding Amount for Redemption of Debt in Whole or in Part
Represents the minimum amount of aggregate outstanding principal amount for initiating redemption of debt in whole or in part on or after maturity date.
Changes in:
Changes in [Abstract]
Document Financial Statement Error Correction Flag
Document Financial Statement Error Correction [Flag]
Defined benefit pension plans, estimated employer contributions in next fiscal year
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Due after one year through five years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Amortized Cost
Counterparty and cash collateral netting
Derivative Asset, Fair Value, Gross Liability and Obligation to Return Cash, Offset
Unrealized net holding gains and losses arising during the period, net of related offsets
Other Comprehensive Income (Loss), before Reclassifications, before Tax
2028
Mortgage Loans on Real Estate Maturing in Year Four [Member]
This element represents the real estate property mortgages maturing in the fourth year following the date of the latest balance sheet presented in the financial statements.
Gross amount
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross
CHICAGO STOCK EXCHANGE, INC
NYSE CHICAGO, INC. [Member]
Other
Deferred Tax Assets, Other
Investment assets, useful life (in years)
Investment Assets, Useful Life
Investment Assets, Useful Life
2029
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
State income taxes
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
Total debt outstanding by maturity:
Long-Term Debt, Fiscal Year Maturity [Abstract]
Credit facility, amount outstanding
Line of Credit Facility, Fair Value of Amount Outstanding
Operating lease, payments
Operating Lease, Payments
Reinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Statutory Financial Information and Dividend Limitations [Abstract]
Statutory Financial Information and Dividend Limitations [Abstract]
Statutory Financial Information and Dividend Limitations [Abstract]
Schedule of Gains (Losses) from Valuation and Settlements Reported on Derivatives Not Designated as Accounting Hedges
Schedule of Derivative Instruments Gain (Loss) in Statement of Financial Performance Valuation Settlements Hedge Ineffectiveness Fair Value Hedges and Not Designated Hedges [Table Text Block]
Schedule of gains and losses from valuation, settlements, and hedge ineffectiveness reported on derivatives used in fair value hedging relationships and derivatives not designated as accounting hedging instruments in the statement of operations.
Disposal Group, Held-for-Sale, Not Discontinued Operations
Disposal Group, Held-for-Sale, Not Discontinued Operations [Member]
Property and equipment
Property, Plant and Equipment, Policy [Policy Text Block]
Intangible assets
Deferred Tax Liabilities, Intangible Assets
Weighted average volatility (as a percent)
Average peer volatility (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]
Fixed income securities
Available for sale Fixed Income Securities, Unrealized Gain Included in Other Comprehensive Income
Represents the unrealized gains included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities.
U.S. shareholder's tax (benefit) expense
Effective Income Tax Rate Reconciliation, Shareholder Tax Benefit, Percent
Effective Income Tax Rate Reconciliation, Shareholder Tax Benefit, Percent
5.050% Senior Notes, due 2029
Senior Notes, Due 2029 at 5.050 Percent [Member]
Senior Notes, Due 2029 at 5.050 Percent
Acquisition earn-out payables
Business Combinations Policy [Policy Text Block]
Contracts number
Reinsurance Contracts Number
Represents the number of reinsurance contracts under the agreement.
Industrial, miscellaneous and all other
Industrial, Miscellaneous, and All Others [Member]
Stock options (in shares)
Incremental Common Shares Attributable to Employee Stock Options
Aggregate awards of share options to be issued to an employee under a share-based compensation arrangement considered for purposes of computing diluted earnings per share.
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Assumed
Assumed Premiums Written
Credit Derivatives
Credit Derivatives [Line Items]
Interest accretion rate (discount rate at contract issuance)
Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate
Minimum percentage of premiums to be considered as significant
Minimum Percentage of Premiums to be Considered as Significant
This element represents the minimum percentage of premiums from a single jurisdiction to be considered as significant for the disclosure of a concentration of risk.
U.S. shareholder's tax (benefit) expense
Effective Income Tax Rate Reconciliation, Shareholder Tax Benefit, Amount
Effective Income Tax Rate Reconciliation, Shareholder Tax Benefit, Amount
Dividends paid on preferred stock
Aggregate dividend payment
Payments of Ordinary Dividends, Preferred Stock and Preference Stock
Dividend Limitations
Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract]
Assessment rate, percent of deficit or prior year premiums (as a percent)
Regular Assessment Rate
The maximum rate of the regular assessment for a deficit in a calendar year as a percentage of the greater of the deficit or of property premiums industry-wide for the prior year.
Entity Address, City or Town
Entity Address, City or Town
Proceeds from issuance of debt
Proceeds from Issuance of Long-Term Debt
Schedule of Rollforward of Level 3 Plan Assets
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]
Deferred policy acquisition costs
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost
Asset derivatives, gross liability
Counter- party netting
Derivative Asset, Subject to Master Netting Arrangement, Liability Offset
Disposition
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Other Comprehensive Income (Loss)
Comprehensive Income (Loss) Note [Text Block]
California Earthquake Authority
California Earthquake Authority [Member]
Represents the California Earthquake Authority, which provides insurance for California earthquake losses.
Forfeited (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Schedule of Intangible Assets by Type
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Property and casualty insurance premiums written, net of recoverables
Premiums Written, Net
Shares acquired
Treasury Stock, Value, Acquired, Cost Method
2029
Finite-Lived Intangible Asset, Expected Amortization, Year Five
Document Period End Date
Document Period End Date
Total lease payments
Lessee, Operating Lease, Liability, to be Paid
Schedule of Change in Projected Benefit Obligation, Plan Assets and Funded Status
Schedule of Net Funded Status [Table Text Block]
Asset Class [Axis]
Asset Class [Axis]
Insider Trading Arrangements [Line Items]
Schedule of Rollforward of Credit Loss Allowance for Premium Installment Receivables and Allowance for Credit Loss
Schedule of Rollforward of Credit Loss Allowance for Fixed Income Securities and Mortgage Loans and Bank Loans
Allowance for Credit Loss [Table Text Block]
Allowance for Credit Loss [Table Text Block]
Outstanding, net of expected forfeitures (in dollars per share)
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding, Net of Expected Forfeitures Weighted Average Exercise Price
The weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan, with respecting to stock options outstanding as of the balance sheet date net of expected forfeitures.
2027
Lessee, Operating Lease, Liability, to be Paid, Year Three
Accumulated benefit obligation
Defined Benefit Plan, Accumulated Benefit Obligation
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table]
Cash collateral received as a percent of fair value of foreign securities loaned (as a percent)
Cash Collateral Received for Securities Loaned Percentage Foreign
Represents the amount of cash collateral the entity receives for foreign securities loaned, as a percentage of the fair value of the securities.
Document Transition Report
Document Transition Report
Current year
Current Year Claims and Claims Adjustment Expense
Bank loans
Bank loans, net
Bank Loans [Member]
Bank Loans [Member]
Issues
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Issuances
Schedule of Reconciliation of the Change in the Amount of Unrecognized Tax Benefits
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]
Non-income producing fixed income securities
Fixed Income Securities, Non-Income Producing
This element represents the fixed income securities that do not produce any income.
Tax credits
Effective Income Tax Rate Reconciliation, Tax Credit, Percent
Other investments
Payments to Acquire Other Investments
Dividend received deduction
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Disbursements for loans to subsidiaries
Payments For Advance To Subsidiaries
Payments For Advance To Subsidiaries
Real Estate, Type of Property [Axis]
Real Estate, Type of Property [Axis]
Reinsurance recoverables allowance reclassified to held for sale
Reinsurance Recoverable, Allowance for Credit Loss, Held For Sale
Reinsurance Recoverable, Allowance for Credit Loss, Held For Sale
Contractual Maturity, Maturity Periods [Domain]
Contractual Maturity, Maturity Periods [Domain]
Contractual Maturity, Maturity Periods
Schedule of Portfolio Composition
Summary Investment Holdings [Table Text Block]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Table]
Weighted average expected dividends (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions, Weighted Average Expected Dividend Rate
The estimated dividend rate (a percentage of the share price) to be paid (Weighted Average expected dividends) to holders of the underlying shares over the option's term.
Investment purchases
Payments to Acquire Investments
Surrenders and partial withdrawals
Surrenders and Partial Withdrawals from Contract Holder Funds
Decrease in the liability for policyholder contract deposits resulting from surrenders and partial withdrawals out of contract holder funds.
Restructuring liability, beginning balance
Restructuring liability, ending balance
Restructuring Reserve
Notional amount
Notional Amount of Counterparty Credit Exposure
The notional amount of derivative contracts for which the entity has counterparty credit exposure.
Statement of Income Location, Balance [Domain]
Statement of Income Location, Balance [Domain]
Fixed income securities
Payments to Acquire Debt Securities, Available-for-Sale
Company Selected Measure Name
Company Selected Measure Name
Outstanding, net of expected forfeitures (in shares)
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding Number, Net of Expected Forfeitures
The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance-sheet date, including vested options, net of expected forfeitures.
Potential recoveries
Potential Recoveries under Credit Risk Derivatives
Represents the potential amount of recoveries under sale of credit protection.
2026
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Redemption and repayment of debt
Repayments of Long-Term Debt
Net change in cash
Net Change In Cash Proceeds Managed Collateral
The net change in cash from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Statutory federal income tax rate on income from operations
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Cover [Abstract]
Cover [Abstract]
2020
Acquisition, 2020 [Member]
Acquisition, 2020
Protection Plans
Protection Plans [Member]
Protection Plans
Income Tax Jurisdiction [Domain]
Income Tax Jurisdiction [Domain]
Due after five years through ten years
Long Term Debt Maturing Years Five Through Ten
Long Term Debt Maturing Years Five Through Ten
Common stock
Common Stock [Abstract]
General
General [Abstract]
Comprehensive income (loss)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
National Flood Insurance Program
National Flood Insurance Program [Member]
Represents the National Flood Insurance Program.
Income tax benefits
Share-Based Payment Arrangement, Expense, Tax Benefit
Two Contracts
Two Contracts [Member]
Two Contracts
Dividends on common stock (in dollars per share)
Common Stock, Dividends, Per Share, Declared
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
2027
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
Skyland
Skyland [Member]
Skyland
Short-term investments
Short-Term Investments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Equity securities
Payments to Acquire Equity Securities, FV-NI
Commercial lines
Property and Casualty, Commercial Insurance [Member]
Earnings per common share
Earnings Per Share, Policy [Policy Text Block]
Securities lending obligation
Defined Benefit Plan, Obligation to Return Securities Received as Collateral
Represents the plan's obligation to return securities lending collateral received under a securities lending program. Due to its relatively short-term nature, the outstanding balance of the obligation approximates fair value.
Expected dividends, maximum range (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions Expected Dividend Rate, Maximum
The estimated Maximum dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
Cash received from exercise of options
Proceeds from Stock Options Exercised
Award Timing Disclosures [Line Items]
Subordinated Debentures Due August 15, 2023
Subordinated Debentures Due August 15, 2023 [Member]
Subordinated Debentures Due August 15, 2023
Beginning balance
Ending balance
Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change
Interest-sensitive life insurance
Interest Sensitive Life [Member]
Pension and other postretirement benefits
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits
Reclassification of noncontrolling interest
Change in Reclassification Of Noncontrolling Interests Impact On Accumulated Other Comprehensive Income
Change in Reclassification Of Noncontrolling Interests Impact On Accumulated Other Comprehensive Income
Number of pending claims
Loss Contingency, Pending Claims, Number
Canada Catastrophe Excess of Loss
Canada Catastrophe Excess of Loss [Member]
Canada Catastrophe Excess of Loss
Securities loaned
Securities Borrowed and Loaned Policy [Policy Text Block]
Weighted average dilutive potential common shares excluded due to net loss applicable to common shareholders (in shares)
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Reasonably possible additional losses
Loss Contingency Reasonably Possible Additional Losses Pretax Estimate
Estimate of the reasonably possible pretax loss exposure in excess of the amount accrued for the entity's lawsuits, regulatory inquiries and other legal proceedings.
Effective Income Tax Rate, Continuing Operations, Tax Rate Reconciliation
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Cash flows from operating activities
Net Cash Provided by (Used in) Operating Activities [Abstract]
Effect of changes in discount rate assumptions
AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax
Award Timing Method
Award Timing Method [Text Block]
Total net (benefit) cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Liabilities
Liability [Member]
Trading Arrangements, by Individual
Trading Arrangements, by Individual [Table]
Measurement Frequency [Axis]
Measurement Frequency [Axis]
Commercial Lines
Commercial Lines [Member]
Commercial Lines
Insider Trading Policies and Procedures [Line Items]
Company's pension plans with ABO in excess of plan assets, aggregate fair value of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets
Municipal
States, municipalities and political subdivisions
US States and Political Subdivisions Debt Securities [Member]
Adjustment to Compensation, Amount
Adjustment to Compensation Amount
Compensation Amount
Outstanding Recovery Compensation Amount
Number of states in which entity operates
Number of States in which Entity Operates
Disposal Group Classification [Axis]
Disposal Group Classification [Axis]
Entity Small Business
Entity Small Business
Contract [Axis]
Contract [Axis]
Contract
Equity Incentive Plans
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based payments
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount
Reclassification of noncontrolling interest
Reclassification Of Noncontrolling Interests, Recognized in Accumulated Other Comprehensive Income
Reclassification Of Noncontrolling Interests, Recognized in Accumulated Other Comprehensive Income
6.900% Senior Debentures, due 2038
Senior Debentures Due 2038 at 6.90 Percent [Member]
Senior Debentures due 2038 at 6.90 percent interest.
Quarterly Financial Information Disclosure [Abstract]
Quarterly Financial Information Disclosure [Abstract]
Fair Value Assets Measured on Recurring Basis Unobservable Input Reconciliation Calculation Rollforward
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fixed income securities with unrealized loss position less than 20% of amortized cost, net
Available for sale Securities, Unrealized Losses Having Loss of Less than Twenty Percent
The amount of unrealized losses that are related to securities with an unrealized loss position less than 20% of cost or amortized cost.
Schedule of Rollforward of Credit Loss Allowance for Reinsurance Recoverables
Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block]
Bank Loan Acquisition Period [Domain]
Bank Loan Acquisition Period [Domain]
[Domain] for Bank Loan Acquisition Period [Axis]
Preferred stock, redemption price (in dollars per share)
Preferred Stock, Redemption Price Per Share
Benefit payments
Liability For Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment (Net Of Refunds)
Liability For Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment (Net Of Refunds)
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration]
Liability for insurance assessments
Loss Contingency, Undiscounted Amount of Insurance-related Assessment Liability
1.450% Senior Notes, due 2030
Senior Notes Due 2030 at 1.450 Percent [Member]
Senior Notes Due 2030 at 1.450 Percent
Stock Options
Share-Based Payment Arrangement, Option [Member]
Debt Securities, Available-for-sale [Table]
Debt Securities, Available-for-Sale [Table]
Total derivatives, fair value, net
Derivative, Fair Value, Net
2025
Lessee, Operating Lease, Liability, to be Paid, Year One
Options
Equity and Index Contracts Options and Warrants [Member]
An investment that follows an index, commodity or basket of assets that trades like stock on an exchange.
Comprehensive income (loss) attributable to Allstate
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Pension benefits
Pension Plan [Member]
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Allowance
Allowance for Loan and Lease Losses, Real Estate
Schedule of Maturities for Fixed Income Securities
Investments Classified by Contractual Maturity Date [Table Text Block]
Derivative instruments
Derivative Instruments, Unrealized Gain Included in Other Comprehensive Income
The amount of unrealized gains included in accumulated other comprehensive income on derivative instruments, as of the balance sheet date.
Award Type [Axis]
Award Type [Axis]
Liability for Unpaid Claim and Claim Adjustment Expense, Change [Table]
Liability for Unpaid Claim and Claim Adjustment Expense, Change [Table]
Issuances
Liability for Future Policy Benefit, Expected Net Premium, Issuance
Corporate
Corporate bonds
Corporate Debt Securities [Member]
Ceded Credit Risk [Line Items]
Ceded Credit Risk [Line Items]
Property and equipment, net
Property, Plant and Equipment, Net
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Total liabilities
Liabilities
Noncontrolling interest
Equity, Attributable to Noncontrolling Interest
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Foreign currency translation
Foreign Currency Transactions and Translations Policy [Policy Text Block]
Revolving Credit Facility
Revolving Credit Facility [Member]
Schedule of Carrying Value for Limited Partnership Interests
Schedule of Investments in and Advances to Affiliates, Schedule of Investments [Table Text Block]
Cash flows from investing activities
Net Cash Provided by (Used in) Investing Activities [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Michigan Catastrophic Claim Association
Michigan Catastrophic Claim Association [Member]
Represents the Michigan Catastrophic Claim Association.
Preferred stock and additional capital paid-in, $1 par value, 25 million shares authorized, 82.0 thousand shares issued and outstanding, $2,050 aggregate liquidation preference
Preferred stock and additional capital paid-in, $1 par value, 25 million shares authorized, 82.0 thousand shares issued and outstanding, $2,050 aggregate liquidation preference
Preferred Stock, Including Additional Paid in Capital
Preferred stock, value aggregate liquidation preference
Preferred Stock, Liquidation Preference, Value
Coverage - II
Coverage - II [Member]
Coverage - II
Short-term, at fair value (amortized cost $4,539 and $5,145)
Short-term investments, at fair value
Short-term investments
Other Short-Term Investments
Policy holder surcharge
Policy Holder Surcharge
Policy Holder Surcharge
Net operating loss carryover
Deferred Tax Assets, Operating Loss Carryforwards
Equipment
Equipment [Member]
Fair value adjustments
Long-Term Debt, Fair Value Adjustment
Long-Term Debt, Fair Value Adjustment
Schedule of Changes in Items Not Yet Recognized as a Component of Net Cost for Pension and Other Postretirement Plans
Schedule of Net Periodic Benefit Cost Not yet Recognized [Table Text Block]
Participant contributions
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Weighted average exercise price
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Changes in unrealized net capital gains and losses reported in OCI
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax
Weighted average common shares - Diluted (in shares)
Weighted average common and dilutive potential common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Write-off of uncollectible premium installment receivable amounts
Premium Receivable, Allowance for Credit Loss, Writeoff
MNPI Disclosure Timed for Compensation Value
MNPI Disclosure Timed for Compensation Value [Flag]
Total Allstate shareholders’ equity
Total Allstate shareholders’ equity
Equity, Attributable to Parent
Contractholder fund withdrawals
Withdrawal from Contract Holders Funds
Pledged to the Company
Cash and Securities Pledged as Collateral, from Counterparties
This element represents cash and securities pledged as collateral from counterparties.
Life insurance
Life Insurance Product Line [Member]
Litigation Case [Axis]
Litigation Case [Axis]
Reserve for future policy benefits
Disposal Group, Including Discontinued Operation, Liability for Future Policy Benefit, before Reinsurance
Schedule of Goodwill by Reporting Unit
Schedule of Goodwill [Table Text Block]
Software and Software Development Costs
Software and Software Development Costs [Member]
Accounting Standards Update and Change in Accounting Principle [Table]
Accounting Standards Update and Change in Accounting Principle [Table]
Other additions
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account
Above 1.50
Debt Service Coverage Ratio above 1.50 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio above 1.5.
Company's contribution to the Allstate plan
Defined Contribution Plan, Cost
Operating cash flow provided (used)
Net Cash Provided by (Used in) Operating Activities, Liabilities for Collateral
The net operating cash flow provided by (used in) the net change in liabilities for collateral.
Texas Windstorm Insurance Association
Texas Windstorm Insurance Association [Member]
Texas Windstorm Insurance Association
Effect of changes in discount rate assumptions
AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax
Accident and health insurance premiums and contract charges
Accident, Health And Life Insurance Product Line [Member]
Accident, Health And Life Insurance Product Line
Common stock authorized for stock-based awards (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Exchange [Domain]
Exchange [Domain]
2028
Long-Term Debt, Maturity, Year Four
Schedule of Average Annual Percentage Payout of Incurred Claims by Age, Net of Recoverables
Short-Duration Insurance Contracts, Schedule of Historical Claims Duration [Table Text Block]
Unrealized net capital gains and losses
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
2026
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Changed Peer Group, Footnote
Changed Peer Group, Footnote [Text Block]
Weighted average remaining contractual term, outstanding (in years)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Commitments to invest in limited partnership interests
Commitments to Invest in Limited Partnership Interests
This element represents commitments to acquire financial interests or instruments, to allow for additional participation in certain limited partnership investments. Because the equity investments in the limited partnerships are not actively traded, it is not practical to estimate the fair value of these commitments.
Retention level per claim
Reinsurance, Amount Retained, Per Event
Non-cash investing activities, right-of-use asset, property and equipment obtained
Noncash Investing Activities, Right-Of-Use Asset, Property And Equipment, Obtained In Exchange For Operating Lease Liability
Noncash Investing Activities, Right-Of-Use Asset, Property And Equipment, Obtained In Exchange For Operating Lease Liability
Floating Rate Subordinated Debentures, due 2053
Second Floating Rate Subordinated Debentures, Due 2053 [Member]
Second Floating Rate Subordinated Debentures, Due 2053
Schedule of Reportable Segments Expense Information Used in Measure for Segment Profit or Loss
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Adjusted beginning balance
Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change
Weighted average remaining contractual term, exercisable ("vested"), outstanding (in years)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Mortgage loans, net
Amortized cost, net
Amortized cost, net
Mortgage loans
Mortgage Loans on Real Estate, Commercial and Consumer, Net
Defined Benefit Plan [Table]
Defined Benefit Plan [Table]
Capital Structure [Abstract]
Capital Structure [Abstract]
Capital Structure [Abstract]
2026
Mortgage Loans on Real Estate Maturing in Year Two [Member]
This element represents the real estate property mortgages maturing in the second year following the date of the latest balance sheet presented in the financial statements.
Technology and other
Technology-Based and Other Intangible Assets [Member]
Technology-Based and Other Intangible Assets [Member]
Ceded losses incurred
Reinsurance ceded amount
Reinsurance Ceded Amount
Represents the amount of reinsurance ceded under various contracts.
Depreciation, amortization and other non-cash items
Depreciation, Amortization and Accretion, Net
Catastrophe reinsurance, co-participation percentage
Catastrophe Reinsurance, Co-Participation Percentage
Catastrophe Reinsurance, Co-Participation Percentage
Schedule of Amortization Expense of Intangible Assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
4 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Four
Unrealized net gains (losses)
Unrealized Net Gains (Losses) on Investments [Abstract]
Dividends payable, amount per share (in dollars per share)
Dividends Payable, Amount Per Share
Allstate Corporation
Parent Company [Member]
Maximum
Maximum [Member]
Deferred Policy Acquisition Costs
Deferred Policy Acquisition Costs [Text Block]
Reinsurance and Indemnification
Reinsurance [Text Block]
Interest rate contracts
Interest Rate Financial Futures Contracts [Member]
Derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate.
Accrued investment income
Accrued Investment Income Receivable
Contract charges
Contract Charges
An amount that an insurer deducts from a contract holder's account, as compensation for services rendered.
Beginning balance
Ending balance
Premium installment receivables
Premium Receivable, Allowance for Credit Loss
Florida Hurricane Catastrophe Fund, Contract Three
Florida Hurricane Catastrophe Fund, Contract Three [Member]
Florida Hurricane Catastrophe Fund, Contract Three
Name
Outstanding Recovery, Individual Name
Schedule of Major Classes Of Assets And Liabilities Classified As Held For Sale
Disposal Groups, Including Discontinued Operations [Table Text Block]
Net change in liabilities
Net Change in Liabilities for Collateral [Abstract]
Non-cash financing activities related to the issuance of shares for vested restricted stock units
Stock Issued During Period, Value, Conversion of Units
Variable lease, cost
Variable Lease, Cost
Statutory Financial Information and Dividend Limitations
Statutory Accounting Practices Disclosure1 [Text Block]
Statutory Accounting Practices Disclosure1 [Text Block]
Increase (Decrease) in the provision for credit losses
Reinsurance Recoverable, Allowance for Credit Loss, Period Increase (Decrease)
Schedule of Reportable Segments Revenue Information
Schedule of Business Segments Revenue Disclosure [Table Text Block]
The schedule of revenues by segment.
Other liabilities and accrued expenses
Accrued Liabilities and Other Liabilities
Award Timing Predetermined
Award Timing Predetermined [Flag]
Weighted average remaining contractual term, net of expected forfeitures, outstanding (in years)
Share based Compensation Arrangement by Share based Payment Award, Options Outstanding, Net of Expected Forfeitures, Weighted Average Remaining Contractual Term
The weighted average period between the balance sheet date and expiration for all awards outstanding under the plan, net of expected forfeitures, which may be expressed in a decimal value for number of years.
Reserves related to short-duration contracts
Short-Duration Contracts, Discounted Liabilities, Amount
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Dividends paid on common stock
Payments of Ordinary Dividends, Common Stock
Distribution and customer relationships
Customer Relationships [Member]
Schedule of Bank Loans Amortized Cost by Credit Quality and Year of Origination
Bank Loans Amortized Cost By Credit Quality And Year Of Origination [Table Text Block]
Bank Loans Amortized Cost By Credit Quality And Year Of Origination
Beginning balance
Ending balance
Components of contractholder funds
Policyholder Contract Deposit
Forecast
Forecast [Member]
Net income (loss) applicable to common shareholders per common share - Diluted (in dollars per share)
Earnings Per Share, Diluted
Estimated future benefit payments
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Counterparty Name [Domain]
Counterparty Name [Domain]
State NOL
State and Local Jurisdiction [Member]
Retirement Benefits [Abstract]
Retirement Benefits [Abstract]
Property-Liability
Total Property-Liability
Property Liability [Member]
Property-liability segment includes the Allstate Protection and the discontinued lines and coverage segments.
Preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
External Credit Rating, Standard & Poor's [Domain]
External Credit Rating, Standard & Poor's [Domain]
Futures
Equity and Index Contracts Financial Futures Contracts [Member]
Derivative instrument whose primary underlying risk is tied to share prices for financial futures contracts.
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Less: reinsurance recoverables
Liability For Future Policy Benefit, Reinsurance Recoverable, Excluding Short-Duration Contracts, After Allowance
Liability For Future Policy Benefit, Reinsurance Recoverable, Excluding Short-Duration Contracts, After Allowance
Proceeds from sale of property and equipment
Proceeds from Sale of Property, Plant, and Equipment
Limit of aggregate losses under aggregate excess agreement
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year
The limit of aggregated losses per contract year beyond which coverage provided by an aggregate excess agreement applies.
Income tax expense (benefit)
Income taxes on operations
Total income tax expense (benefit)
Income tax benefit
Income Tax Expense (Benefit)
Interest cost
Defined Benefit Plan, Interest Cost
Total derivatives, notional amount
Derivative, Notional Amount
Due after ten years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 10 Years, Fair Value
Less than 12 months
Less than Twelve Months [Abstract]
Components of net periodic cost
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Total asset derivatives, fair value, net
Net amount on balance sheet
Derivative Asset
Weighted average vesting period
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Unallocated loss adjustment expenses (“ULAE”)
Prior year reserve reestimates for ULAE
ULAE
Unallocated Loss Adjustment Expenses [Member]
Unallocated Loss Adjustment Expenses [Member]
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Interest expense
Interest Expense, Operating and Nonoperating
Income Tax Jurisdiction [Axis]
Income Tax Jurisdiction [Axis]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Share-based payments
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent
Cumulative amount incurred to date for active programs
Restructuring and Related Cost, Cost Incurred to Date
All Adjustments to Compensation
All Adjustments to Compensation [Member]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Table]
Restructuring and related charges
2024 expenses
Restructuring Charges
Operating cash flow (used) provided
Net Cash Provided by Used in Operating Activities Proceeds Managed Collateral
The net operating cash flow provided or used related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Government bonds
Government Bonds [Member]
Government Bonds
Operating costs and expenses
Other Cost and Expense Operating [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Operating costs and expenses.
Total Level 3 gains (losses) included in net income
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings [Abstract]
1.26 - 1.50
Debt Service Coverage Ratio below 1.26 to 1.50 [Member]
This element represents the information pertaining to mortgage loans on real estate having a debt service coverage ratio between 1.26 to 1.5.
Unearned premiums
Decrease in unearned premiums
Increase (Decrease) in Unearned Premiums
Scenario [Domain]
Scenario [Domain]
Schedule of Performance Stock Awards Assumptions
Schedule of Share-Based Payment Award, Performance Stock Awards , Valuation Assumptions [Table Text Block]
Schedule of Share-Based Payment Award, Performance Stock Awards , Valuation Assumptions
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 265 million and 262 million shares outstanding
Common stock, $.01 par value, 2.0 billion shares authorized and 900 million issued, 265 million and 262 million shares outstanding
Common Stock, Value, Outstanding
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table]
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Table]
Net amount
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Net
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Entity Address, State or Province
Entity Address, State or Province
Auto insurance - physical damage coverage
Auto Insurance, Physical Damage Coverage [Member]
Auto Insurance, Physical Damage Coverage [Member]
Mortgage loans
Proceeds from Collection of Mortgage Loans
The cash inflow from collections of repayments from borrowers on loans that are secured with real estate mortgages.
Defined Benefit Plan, Plan Assets, Category [Domain]
Defined Benefit Plan, Plan Assets, Category [Domain]
Proceeds from disposal
Disposal Group, Including Discontinued Operation, Consideration
Prior service credit amortized to net cost
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax
Financial Instruments [Domain]
Financial Instruments [Domain]
Weighted average grant date fair value, nonvested at the beginning of the period (in dollars per share)
Weighted average grant date fair value, nonvested at the end of the period (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Schedule of Components of Net Cost (Benefit) for Pension and Other Postretirement Plans
Schedule of Net Benefit Costs [Table Text Block]
Derivatives
Derivative instruments
Derivative [Member]
Fair value
Estimate of Fair Value Measurement [Member]
Derivative Financial Instruments and Off-balance sheet Financial Instruments
Derivative Financial Instruments and Off-balance sheet Financial Instruments
Charged to costs and expenses
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Net investment income
Allstate Protection and Run-off Property-Liability net investment income
Net investment income
Investment income, less investment expense
Net Investment Income
Pay vs Performance Disclosure
Pay vs Performance Disclosure [Table]
Other operating costs and expenses
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense
Interest rate contracts
Interest Rate Contract [Member]
Schedule II — Condensed Financial Information of Registrant
Condensed Financial Information of Parent Company Only Disclosure [Text Block]
Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Right of use asset
Operating Lease, Right-of-Use Asset
Erroneously Awarded Compensation Recovery
Erroneously Awarded Compensation Recovery [Table]
Derivative Instruments, Gain (Loss)
Derivative Instruments, Gain (Loss) [Line Items]
Assets held for sale
Assets Held For Sale [Member]
Assets Held For Sale
Receivable from subsidiaries
Intercompany Receivables
The amount of receivables due from the entity's subsidiaries.
Insurance assessments, premium tax offsets
Loss Contingency Accrual, Insurance-related Assessment, Premium Tax Offset
Reinsurance Disclosures [Abstract]
Reinsurance Disclosures [Abstract]
Short-term Debt, Type [Axis]
Short-Term Debt, Type [Axis]
Municipal Bonds [Table]
Municipal Bonds [Table]
This element represents the schedule providing information on municipal bonds.
California
California
CALIFORNIA
Earnings per Common Share
Earnings Per Share [Text Block]
Subsequent Event
Subsequent Event [Member]
Depositary Shares represent 1/1,000th of a share of 5.100% Noncumulative Preferred Stock, Series H
Series H
Series H Preferred Stock [Member]
Weighted average grant date fair value, granted (in dollars per share)
Granted (in dollars per share)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Income taxes
Income Tax, Policy [Policy Text Block]
Peer Group Issuers, Footnote
Peer Group Issuers, Footnote [Text Block]
Restructuring Plan [Axis]
Restructuring Plan [Axis]
Segments [Domain]
Segments [Domain]
Claims incurred and paid from before 2020
Short-duration Insurance Contracts, Accident Year Before 2019 [Member]
Short-duration Insurance Contracts, Accident Year Before 2019
PEO
PEO [Member]
Current estimated maximum CEA assessment
Assessment Estimated Maximum, Amount
The current maximum estimated amount of an assessment if the capital balance of a state insurance facility falls below a specified level.
Percentage of repurchase or redemption of outstanding principal debentures within specified period for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Specified Percent Age of Repurchase or Redemption of Outstanding Principal Debt for Specified Period
Represents the percentage of repurchase or redemption of outstanding principal debt for non-applicability of promises and covenants contained in the replacement capital covenants.
Name
Trading Arrangement, Individual Name
Funded status
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Weighted average grant date fair value
Weighted average grant date fair value
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unamortized pension and other postretirement prior service credit
Items not yet recognized as a component of net cost, beginning balance
Items not yet recognized as a component of net cost, ending balance
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax
5.200% Senior Notes due 2042
Senior Notes, Due 2042 at 5.200 Percent [Member]
Represents the senior notes due in 2042 at an interest rate of 5.20 percent.
Fixed annuities
Fixed Annuity [Member]
Commitments, Guarantees and Contingent Liabilities
Commitments Contingencies and Guarantees [Text Block]
Awards Close in Time to MNPI Disclosures, Table
Awards Close in Time to MNPI Disclosures [Table Text Block]
Annual Reserve Review
Annual Reserve Review [Member]
Annual Reserve Review [Member]
Due after one year through five years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after One Through Five Years, Fair Value
Aggregate Erroneous Compensation Amount
Aggregate Erroneous Compensation Amount
Schedule of Contractholder Funds Activity
Schedule of Contract Holder Funds Activity [Table Text Block]
Disclosure of the activity in the liability for estimated reserve for cumulative deposits plus credited interest and fund performance, less withdrawals, expenses and cost of insurance charges, as applicable.
Schedule I — Summary of Investments Other than Investments in Related Parties
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Text Block]
Valuation allowance
Valuation allowance
Deferred Tax Assets, Valuation Allowance
Florida Citizens
Florida Citizens [Member]
Represents the Citizens Property Insurance Corporation created by the state of Florida to provide insurance to property owners unable to obtain coverage in the private insurance market.
Total included in net income
Fair Value Assets and Liabilities Measured on Recurring Basis Change in Unrealized Gain (Loss) Included in Earnings
This item represents the amount of the total change in unrealized (holding) gains or losses for the period which are included in the statement of income (or changes in net assets). Such unrealized (holding) gains or losses relate to those assets and liabilities still held at the reporting date for which fair value is measured on a recurring basis using significant unobservable inputs (Level 3).
2027
Mortgage Loans on Real Estate Maturing in Year Three [Member]
This element represents the real estate property mortgages maturing in the third year following the date of the latest balance sheet presented in the financial statements.
Changes in:
Increase (Decrease) in Operating Capital [Abstract]
Accident Year 2021
Short-Duration Insurance Contract, Accident Year 2021 [Member]
Accident and health insurance premiums and contract charges, net of recoverables
Life and Annuity Premiums and Contract Charges, Net of Reinsurance Ceded
Premiums recognized as revenue in the period on all life insurance and reinsurance contracts, as well as accident and health insurance and reinsurance contracts, after subtracting any amounts ceded to another insurer. Also includes an amount that an insurer adds to a policy's premium, or deducts from a policy's cash value or contract holder's account, as compensation for services rendered (may include fees), after subtracting any amounts ceded to another insurer.
Equity securities, at fair value, cost
Equity Securities, FV-NI, Cost
Fixed income securities, at fair value (amortized cost, net $53,616 and $49,649)
Fixed income securities
Fixed income securities, at fair value
Fair value
Debt Securities, Available-for-Sale, Excluding Accrued Interest
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset [Domain]
Deferred Policy Acquisition and Sales Inducement Costs
Deferred Policy Acquisition and Sales Inducement Costs Abstract
Bank loans
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Bank Loans [Member]
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Bank Loans
Deferred income taxes
Deferred Tax Assets (Liabilities) Net Asset Position
The asset position amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category [Axis]
Amount shown in the Balance Sheet
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Amount
Common Stock, par value $0.01 per share
Common stock par value
Common Stock [Member]
A+
Standard & Poor's, A+ Rating [Member]
Forgone Recovery due to Expense of Enforcement, Amount
Forgone Recovery due to Expense of Enforcement, Amount
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]
Property and casualty insurance premiums earned
Premiums and contract charges:
Premiums Earned, Net [Abstract]
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Scenario [Axis]
Scenario [Axis]
Deferred Policy Acquisition and Sales Inducement Costs:
Deferred Policy Acquisition and Sales Inducement Costs [Line Items]
Claims Development [Line Items]
Claims Development [Line Items]
Unrealized foreign currency translation adjustments
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Loss adjustment expenses, net of reinsurance
Total incurred
Incurred
Losses from catastrophes, net of recoveries
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Discontinued Operations and Disposal Groups [Abstract]
Retention amount for catastrophe reinsurance agreement contracts
Catastrophe Reinsurance Agreement Contracts, Retention Amount
Represents the retention amount of catastrophe reinsurance agreement contracts.
Ceded Credit Risk, Reinsurer [Domain]
Reinsurer, Name [Domain]
Investment grade fixed income securities
Investment grade
Investment Grade Fixed Income Securities [Member]
Investment grade is defined as a security having a rating from the National Association of Insurance Commissioners ("NAIC") of 1 or 2; a rating of Aaa, Aa, A or Baa from Moody's, a rating of AAA, AA, A or BBB from Standard and Poor's, Fitch or Dominion, or aaa, aa, a or bbb from A.M. Best; or a comparable internal rating if an externally provided rating is not available.
Catastrophic Event [Domain]
Catastrophic Event [Domain]
Reportable Segments
Segment Reporting Disclosure [Text Block]
2024
Acquisition, Current [Member]
Acquisition, Current [Member]
Public utilities
Public Utility, Equities [Member]
Measurement Basis [Axis]
Measurement Basis [Axis]
3 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Three
Advance notice period required for payment of dividend in excess of amount available for distribution without prior approval (in days)
Advance Notice Period Required for Approval of Payment of Dividend in Excess of Amount Available for Dividend Distribution without Prior Approval from Regulatory Agency
Represents the advance notice period required for payment of dividend in excess of amount available for distribution without prior approval of regulatory agencies.
Title
Trading Arrangement, Individual Title
Non-cash investing activities
Noncash Investing Activities, Right-Of-Use Asset Obtained In Exchange For Operating Lease Liability
Noncash Investing Activities, Right-Of-Use Asset Obtained In Exchange For Operating Lease Liability
Intangible assets, indefinite-lived
Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block]
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Maximum future contingency payments related to acquisitions
Business Combination, Contingent Consideration, Liability
Office
Office Building [Member]
Disposal Group Classification [Domain]
Disposal Group Classification [Domain]
Other revenue
Revenue [Policy Text Block]
Fixed income securities, amortized cost
Disposal Group, Including Discontinued Operation, Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss
Disposal Group, Including Discontinued Operation, Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss
Deferred policy acquisition costs
Beginning balance
Ending balance
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Effect of changes in cash flow assumptions
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change
North Carolina Reinsurance Facility
North Carolina Reinsurance Facility [Member]
Represents information pertaining to The North Carolina Reinsurance Facility.
Noncatastrophic Event [Axis]
Noncatastrophic Event [Axis]
Preferred stock par value
Preferred Stock [Member]
Write-offs
Write-offs
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff
Treasury stock purchases
Payments for Repurchase of Common Stock
Valuation allowance for deferred tax assets
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Document Information [Line Items]
Document Information [Line Items]
Florida
FLORIDA
Expected weighted average long-term rate of return on employee-agent plan assets for the next fiscal year
Defined Benefit Plan Assumptions Used for Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year Employee Agent Plan
Represents the long-term rate of return on plan assets for the next fiscal year for the employee-agent plan, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
Deferred policy acquisition costs
Increase (Decrease) in Deferred Policy Acquisition Costs
Costs and expenses
Expenses
Benefits, Losses and Expenses [Abstract]
Gross liability fair value of contracts containing credit-risk-contingent features
Derivative Gross Liability Fair Value with Credit Risk Contingent Features
Fair value of derivative liabilities, presented on a gross basis containing credit risk contingent features.
Schedule of Total Debt Outstanding
Schedule of Debt [Table Text Block]
Foreign government
Foreign governments
Debt Security, Government, Non-US [Member]
Lease liability
Present value of lease liabilities
Operating Lease, Liability
Schedule of Nonvested Awards
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]
Deferred compensation
Deferred Compensation Liability, Current and Noncurrent
Schedule of Change in Unrealized Net Capital Gains (Losses) and Principal Geographic Distribution of Commercial Real Estate Exceeding 5% of the Mortgage Loans Portfolio and Types of Properties Collateralizing the Mortgage Loan Portfolio and Contractual Maturities of the Mortgage Loan Portfolio
Schedule of Change in Unrealized Net Capital Gains and Losses [Table Text Block]
This item represents the schedule of change in unrealized net capital gains and losses by type of securities.
AA-
Standard & Poor's, AA- Rating [Member]
Amortized cost, net
Reported Value Measurement [Member]
Participant contributions
Defined Benefit Plan, Benefit Obligation, Contributions by Plan Participant
Gain on sale of other income
Gain (Loss) on Disposition of Property Plant Equipment
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Fixed income securities
Defined Benefit Plan, Debt Security [Member]
Equity securities
Proceeds from Sale of Equity Securities, FV-NI
Supplemental Cash Flow Information
Cash Flow, Supplemental Disclosures [Text Block]
Unrealized net holding gains and losses arising during the period, net of related offsets
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Actual return on plan assets
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Schedule of Net Gains (Losses) on Investments and Derivatives by Transaction Type
Schedule of Gain (Loss) on Investments by Transaction Type [Table Text Block]
This item represents the schedule of realized gains and losses reported in the statement of income by type of transactions.
Non-catastrophe losses
Non Catastrophe Reestimates [Member]
Represents adjustments to the reserves for unpaid claims and claims adjustment expense resulting from non-catastrophe loss re-estimates.
Advertising expense
Advertising Expense
Traditional Market
Traditional Market [Member]
Traditional Market
Reinsurance recoverables, net
Disposal Group Including Discontinued Operation, Reinsurance
Disposal Group Including Discontinued Operation, Reinsurance
Allstate Protection and Protection Services
Allstate Protection and Protection Services [Member]
Allstate Protection and Protection Services
Allstate Protection
All State Protection [Member]
Allstate Protection comprises two brands, the Allstate brand and Encompass brand.
Investment [Table]
Schedule of Investments [Table]
Net reserve for future policy benefits
Liability For Future Policy Benefit, Excluding Short-Duration Contracts, Before Reinsurance
Liability For Future Policy Benefit, Excluding Short-Duration Contracts, Before Reinsurance
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested
Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member]
Auditor Name
Auditor Name
Less: reclassification adjustment of realized capital gains and losses
Reclassification from AOCI, Current Period, Tax
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested
Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member]
Insurance Placements [Axis]
Insurance Placements [Axis]
Insurance Placements
Proceeds from sales of investments
Proceeds from Sale, Maturity and Collection of Investments
Number
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Contractual Maturity, Maturity Periods [Axis]
Contractual Maturity, Maturity Periods [Axis]
Contractual Maturity, Maturity Periods
Schedule of OTC Derivatives Counterparty Credit Exposure by Counterparty Credit Rating
Schedule of Derivative Counterparty Credit Exposure [Table Text Block]
Schedule of counterparty credit exposure by counterparty credit rating.
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Illinois
ILLINOIS
Adjustment To PEO Compensation, Footnote
Adjustment To PEO Compensation, Footnote [Text Block]
Commercial paper maximum borrowing capacity
Commercial Paper Maximum Borrowing Capacity
Maximum borrowing capacity under the commercial paper program.
Unearned premium reserves
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Unearned Premiums Reserve
Quota share (as a percent)
Reinsurance Agreement, Quota Share Percentage
Reinsurance Agreement, Quota Share Percentage
Asset derivatives
Derivative Asset [Abstract]
Compensation Actually Paid vs. Other Measure
Compensation Actually Paid vs. Other Measure [Text Block]
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year
Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member]
Accident Year 2024
Short-Duration Insurance Contract, Accident Year 2024 [Member]
Current income tax receivable
Income Taxes Receivable, Current
Purchases of property and equipment, net
Payments to Acquire Property, Plant, and Equipment
Cumulative paid claims and allocated claims adjustment expenses, net of recoverables
Short-Duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net
Forgone Recovery due to Violation of Home Country Law, Amount
Forgone Recovery due to Violation of Home Country Law, Amount
Equity incentive plans
Share-Based Payment Arrangement [Policy Text Block]
Other assets
SEC Schedule, 12-09, Valuation Allowance, Other Assets [Member]
SEC Schedule, 12-09, Valuation Allowance, Other Assets
Capital and surplus
Statutory Accounting Practices, Statutory Capital and Surplus, Balance
Termination Date
Trading Arrangement Termination Date
Fair value of assets and liabilities measured on recurring and non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
2026
Lessee, Operating Lease, Liability, to be Paid, Year Two
2025
Long-Term Debt, Maturity, Year One
Defined benefit plans' accrued benefit costs related to certain unfunded and non-qualified plans
Defined Benefit Plan Accrued Benefit Costs Relating to Unfunded Non Qualified Plans
This element represents the defined benefit plans accrued benefit costs relating to certain unfunded and Nonqualified plans.
Reinsurance Retention Policy [Table]
Reinsurance Retention [Table]
Pennsylvania
PENNSYLVANIA
Subordinated Debentures Due January 14, 2023
Subordinated Debentures Due January 14, 2023 [Member]
Subordinated Debentures Due January 14, 2023
Net income (loss) attributable to Allstate
Net income (loss)
Net Income (Loss) Attributable to Parent
Interest accrual
Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense
Pay vs Performance Disclosure, Table
Pay vs Performance [Table Text Block]
Credit Losses on Fixed Income Securities [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Liability for collateral
Liabilities for collateral, beginning of year
Liabilities for collateral, end of year
Obligation to Return Collateral Securities Lending and Derivatives
The liability to return cash and securities received as collateral in conjunction with securities lending and over-the-counter derivatives.
Schedule of Weighted Average Assumptions Used to Determine Net Pension Cost and Net Postretirement Benefit Cost and Benefit Obligations
Defined Benefit Plan, Assumptions [Table Text Block]
Catastrophe reinsurance agreement contracts, amount to be obtained from reinsurance
Catastrophe Reinsurance Agreement Contracts, Amount To Be Obtained From Reinsurance
Catastrophe Reinsurance Agreement Contracts, Amount To Be Obtained From Reinsurance
Schedule of Net Appreciation (Decline) Recognized in Net Income for Assets that are Still Held
Realized Gain (Loss) on Investments [Table Text Block]
Income Statement [Abstract]
Income Statement [Abstract]
Interest income on collateral, net of fees
Securities Loaned Interest Income on Collateral, Net
Interest earned on collateral received for loaned securities and invested in short-term investments and fixed income securities, net of fees.
CEA capital balance
Fair plan capital balance
State Facility Capital Balance
Represents the capital balance of a state insurance facility in which the entity participates.
Name
Forgone Recovery, Individual Name
Aggregate intrinsic value, exercisable ("vested"), outstanding
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Weighted average remaining lease term (years)
Operating Lease, Weighted Average Remaining Lease Term
Transaction [Domain]
Transaction [Domain]
Preferred stock measured at cost
Preferred Stock, Measured At Cost
Preferred Stock, Measured At Cost
Investments
Investment, Policy [Policy Text Block]
ABS
Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value
Schedule of Estimated Future Benefit Payments Expected to be Paid
Schedule of Expected Benefit Payments [Table Text Block]
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Premium Receivable, Allowance for Credit Loss [Roll Forward]
2 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Two
Outstanding Aggregate Erroneous Compensation Amount
Outstanding Aggregate Erroneous Compensation Amount
Audit Information [Abstract]
Audit Information [Abstract]
Increase (decrease) in future policy benefit reserves
Increase (Decrease) in Future Policy Benefit Reserves
4.200% Senior Notes, due 2046
Senior Notes Due 2046 at 4.200 Percent [Member]
Senior Notes Due 2046 at 4.20 Percent [Member]
Proceeds from sales
Proceeds from Sale of Investments [Abstract]
Other
Other Insurance Line [Member]
Other Insurance Line
Less: Net loss attributable to noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest
Derivative Financial Instruments and Off-balance Sheet Financial Instruments
Derivative Financial Instruments and Off Balance Sheet Financial Instruments Disclosure [Text Block]
The entire disclosure of the entity's derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising there from, and the amounts of and methodologies and assumptions used in determining the amounts of such items. Also includes disclosures of off-balance-sheet financial instruments.
Holland Hewitt v. Allstate Life Insurance Company
Holland Hewitt v. Allstate Life Insurance Company [Member]
Holland Hewitt v. Allstate Life Insurance Company
Litigation Case [Domain]
Litigation Case [Domain]
Total accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Fair value
Debt Securities, Available-for-Sale, Maturity, Fair Value, Rolling Maturity [Abstract]
Other loan commitments
Other Loan Commitments
This element represents other loan commitments to fund loans to a borrower provided there is no violation of any condition in the contract. These commitments have predetermined interest rates and fixed or varying expiration dates or other termination clauses. The fair value of these commitments is insignificant.
Pension Adjustments Service Cost
Pension Adjustments Service Cost [Member]
Contractholder funds
Policyholder Contract Deposit, Excluding Held-For-Sale
Policyholder Contract Deposit, Excluding Held-For-Sale
Maximum amount of additional exposure for contracts with credit-risk-contingent features if all features were triggered concurrently
Additional Collateral, Aggregate Fair Value, Net
Additional Collateral, Aggregate Fair Value, Net
Ohio
OHIO
Related Party [Axis]
Related and Nonrelated Parties [Axis]
Weighted average common shares - Basic (in shares)
Weighted average common shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Stock Price or TSR Estimation Method
Stock Price or TSR Estimation Method [Text Block]
Unrealized losses
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Capitalized costs
Capitalized Computer Software, Net
Property and casualty insurance premiums
Property and casualty insurance
Property, Liability and Casualty Insurance Product Line [Member]
Private placement commitments
Private Placement Commitments
This element represents conditional commitments to purchase private placement debt and equity securities at a specified future date. The fair value of these commitments generally cannot be estimated on the date the commitment is made as the terms and conditions of the underlying private placement securities are not finalized at that point of time.
Schedule of Commercial Mortgage Loans Amortized Cost by Debt Service Coverage Ratio Distribution and Year of Origination
Mortgage Loans Amortized Cost By Debt Service Coverage Ratio Distribution And Year Of Origination [Table Text Block]
Mortgage Loans Amortized Cost By Debt Service Coverage Ratio Distribution And Year Of Origination [Table Text Block]
Components of Deferred Tax Assets and Liabilities [Abstract]
Components of Deferred Tax Assets and Liabilities [Abstract]
New York
NEW YORK
Name
Awards Close in Time to MNPI Disclosures, Individual Name
Other liabilities and accrued expenses
Other Liabilities And Accrued Expenses
Other Liabilities And Accrued Expenses
All other corporate bonds
Other Corporate Bonds [Member]
Total liability derivatives, number of contracts
Derivative Liability, Number of Instruments Held
Forfeited (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period
Redemption of preferred stock
Payments for Repurchase of Preferred Stock and Preference Stock
Unrealized losses
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Collateral posted under MNAs for contracts containing credit-risk contingent features
Collateral posted under MNAs for contracts containing credit-risk-contingent features
Collateral Already Posted, Aggregate Fair Value
Loss Contingencies
Loss Contingencies [Line Items]
Tennessee
TENNESSEE
Securities collateral (received) pledged
Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Security Not Offset
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI [Line Items]
Acquisition costs deferred
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Addition
Schedule of Other Information Related to Operating Leases
Lease, Cost [Table Text Block]
Internal Credit Assessment [Axis]
Internal Credit Assessment [Axis]
Liability for Future Policy Benefit, by Product Segment [Line Items]
Reserve for life-contingent benefits:
Liability for Future Policy Benefit, by Product Segment [Line Items]
Threshold percentage of repurchase or redemption of outstanding principal debentures for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Threshold Percent Age of Repurchase or Redemption of Outstanding Principal Debt
Represents the threshold percentage of repurchase or redemption of outstanding principal debt for non-applicability of promises and covenants contained in the replacement capital covenants.
Segment Reporting Information
Segment Reporting Information [Line Items]
All Trading Arrangements
All Trading Arrangements [Member]
Schedule of Computation of Basic and Diluted Earnings Per Common Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Award vesting period
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Accident Year 2022
Short-Duration Insurance Contract, Accident Year 2022 [Member]
NEW YORK STOCK EXCHANGE, INC.
NEW YORK STOCK EXCHANGE, INC. [Member]
Rule 10b5-1 Arrangement Adopted
Rule 10b5-1 Arrangement Adopted [Flag]
Awards Close in Time to MNPI Disclosures
Awards Close in Time to MNPI Disclosures [Table]
Assets
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Valuation allowances and qualifying accounts
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
6.125% Senior Notes, due 2032
Senior Notes Due 2032 at 6.125 Percent [Member]
Senior notes due 2032 at 6.125 percent interest.
Pay vs Performance Disclosure [Line Items]
Net gains (losses) on investments and derivatives
Realized Capital Gains and Losses [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as Realized capital gains and losses.
Texas
Texas
TEXAS
Restructuring and Related Activities [Abstract]
Restructuring and Related Activities [Abstract]
Cash balance interest credit rate
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Weighted-Average Interest Crediting Rate
Proceeds from issuance of preferred stock
Proceeds from Issuance of Preferred Stock and Preference Stock
Other Performance Measure, Amount
Other Performance Measure, Amount
Common stock, shares, outstanding (in shares)
Common Stock, Shares, Outstanding
Schedule of Unrealized Net Capital Gains and Losses Included in AOCI
Schedule of Unrealized Capital Gains and Losses Included in Accumulated Other Comprehensive Income [Table Text Block]
This item represents the schedule of unrealized net capital gains and losses recorded in accumulated other comprehensive income by type of securities.
Documents Incorporated by Reference
Documents Incorporated by Reference [Text Block]
Fixed Income Securities Valued Based on Nonbinding Broker Quotes
Fixed Income Securities Valued Based on Nonbinding Broker Quotes [Member]
Represents the fixed income securities valued based on non-binding broker quotes.
Catastrophe reinsurance aggregate loss limit
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year, In Excess of Layers
Catastrophe Reinsurance Aggregate Loss Limit Per Contract Year, In Excess of Layers
Free-standing derivatives, assets
Free Standing Derivative Assets [Member]
This element represents the defined benefit plan assets invested in free standing assets derivatives.
Reinsurance Agreement [Axis]
Reinsurance Agreement [Axis]
Reinsurance Agreement
Number of loans
Number of Loans
Number of Loans
Contingent consideration
Contingent Consideration Derivative [Member]
Contingent Consideration Derivative
Gross realized losses
Debt Securities, Available-for-Sale, Realized Loss
Gross unrealized Gains
Gross Unrealized Gains [Abstract]
Service cost
Defined Benefit Plan, Service Cost
Arithmetic average of the annual actual return on plan assets for the last 5 years
Arithmetic Average of Annual Actual Return on Plan Assets for Last 5 Years
This element represents the arithmetic average of the annual actual return on plan assets for the last 5 years.
Preferred stock, shares liquidation preference (in dollars per share)
Preferred Stock, Liquidation Preference Per Share
Equity securities
Defined Benefit Plan, Equity Securities [Member]
Intangible Asset, Finite-Lived [Table]
Intangible Asset, Finite-Lived [Table]
Reacquired shares (in shares)
Treasury Stock, Shares, Acquired
Other contracts
Other Contracts [Member]
Other Contracts
Exposure, net of collateral
Credit Derivative Exposure Net of Collateral
The amount of credit exposure by counterparties net of collateral received, related to derivative contracts.
5.550% Senior Notes due 2035
Senior Notes Due 2035 at 5.550 Percent [Member]
Senior notes due 2035 at 5.55 percent interest.
Intersegment eliminations
Intersegment Eliminations
Intersegment Eliminations [Member]
5.100% Fixed-to-Floating Rate Subordinated Debentures due 2053
Subordinated Debentures Due 2053 at 5.10 Percent [Member]
Represents the subordinated debentures due in 2053 at an interest rate of 5.10 percent.
Pre-tax
Other Comprehensive Income (Loss), before Tax [Abstract]
Investments [Domain]
Investments [Domain]
Credit exposure
Counterparty Credit Exposure
The amount of credit exposure by counterparties related to derivative contracts.
Effect of actual variances from expected experience
Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience
3 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Three, Net
Short-Duration Insurance Contracts, Historical Claims Duration, Year Three, Net
Fixed income securities
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale
Change in Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss)
Change in Unrealized Gain (Loss) Recognized in Accumulated Other Comprehensive Income (Loss) [Line Items]
Deferred income taxes
Deferred Income Taxes Recognized in Accumulated Other Comprehensive Income
Accumulated adjustment to deferred income taxes related to unrealized capital gains and losses, as of the balance sheet date.
2029
Lessee, Operating Lease, Liability, to be Paid, Year Five
Reinsurance recoverables, net
Increase (Decrease) in Reinsurance Recoverable
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table
Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member]
Specified period within which percentage of outstanding principal of debentures is to be purchased for non applicability of promises and covenants contained in the new RCC
Debt Instruments, Replacement Capital Covenants Terms Non Applicability Specified Period within which Specified Percentage of Outstanding Principal Debt is Repurchased or Redeemed
Represents the specified period within which the specified percentage of outstanding principal of debt is to be purchased for non applicability of promises and covenants contained in the replacement capital covenants.
Prior service credit
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Decrease (increase) related to sales and other
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sold And Other Increase (Decrease)
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Sold And Other Increase (Decrease)
Municipal Bonds
Municipal Bonds [Line Items]
Cash at beginning of period
Cash at end of period
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Equity securities, at fair value (cost $4,329 and $2,244)
Equity securities, at fair value
Equity securities
Equity Securities, FV-NI, Current
Unrecognized compensation
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Pledged by the Company
Securities Pledged as Collateral to Counterparties
This element represents securities pledged to counterparties as collateral for credit exposure.
After 5 years
Short-Duration Insurance Contracts, Historical Claims Duration, After Five Years
Short-Duration Insurance Contracts, Historical Claims Duration, After Five Years
Allstate Insurance Company
Allstate Insurance Company [Member]
Represents a wholly owned subsidiary company of Allstate Corporation, which is the primary beneficiary from VIEs.
Credit default swaps – buying protection
Credit Default Swap, Buying Protection [Member]
Total plan assets at fair value, allocation (as a percent)
Defined Benefit Plan, Fair Value of Plan Assets (Liabilities) Percentage
This element represents the allocation of total plan assets at fair value.
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-Lived Intangible Assets, Major Class Name [Domain]
Treasury stock, shares (in shares)
Treasury Stock, Common, Shares
Activity in the reserve for property-liability insurance claims and claims expense:
Liability for Unpaid Claims and Claims Adjustment Expense, Net [Roll Forward]
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Forgone Recovery due to Disqualification of Tax Benefits, Amount
Adjusted capital and surplus
Statutory Accounting Practices, Statutory Capital and Surplus, Adjusted Balance
Statutory Accounting Practices, Statutory Capital and Surplus, Adjusted Balance
Interest paid on debt
Interest Paid, Including Capitalized Interest, Operating and Investing Activities
Assumed from other companies
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Assumed
Prior year reserve reestimates
Prior years
Prior Year Claims and Claims Adjustment Expense
Schedule of Total Preferred Stock Outstanding
Schedule of Noncumulative Outstanding Preferred Stock [Table Text Block]
Tabular disclosure of noncumulative outstanding preferred stock.
Securities loaned
Securities Financing Transactions [Abstract]
Statutory Accounting Practices by Subsidiary [Table]
Statutory Accounting Practices by Subsidiary [Table]
Detail by subsidiary for which financial statements are filed reflecting statutory capital and surplus, net income and the differences between financial reports which are in conformity with generally accepted accounting principles and the statutory financial statements which also use state permitted or prescribed accounting practices.
Security Exchange Name
Security Exchange Name
Interest rate spread overSOFR (as a percent)
Debt Instrument, Basis Spread on Variable Rate
Percentage of amount assumed to net
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Percentage Assumed to Net
Exhausting loss from catastrophes
Exhausting Loss From Catastrophes
Exhausting Loss From Catastrophes
Period for amortization of DAC for property-liability insurance
Deferred Policy Acquisition Costs, Property Liability Insurance Amortization Period
Represents the range of typical amortization periods for deferred policy acquisition costs associated with property-liability insurance.
Emergency assessment maximum percentage of premiums subsequent years (as a percent)
Emergency Assessment Maximum Percentage of Premiums Subsequent Years
The maximum emergency assessment as a premium of all eligible property and casualty premiums in the state, for the payment of bonds issued to provide reimbursements for losses related to mandatory coverage, in the second and subsequent years that such bonding is required.
Fixed income securities, credit loss allowance
Debt Securities, Available-For-Sale, Allowance For Credit Loss, Unrealized Loss Position, Excluding Accrued Interest
Debt Securities, Available-For-Sale, Allowance For Credit Loss, Unrealized Loss Position, Excluding Accrued Interest
Exercised (in dollars per share)
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Indefinite
Indefinite Carryforward Period [Member]
Indefinite Carryforward Period [Member]
Virginia
VIRGINIA
Other assets
Other Assets, Allowance for Credit Loss
Other Assets, Allowance for Credit Loss
Fair value (if applicable)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties, Fair Value
Write-offs
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff
Funds surplus in member's equity
Funds Surplus (Deficit) In Member's Equity
Funds Surplus (Deficit) In Member's Equity
Forgone Recovery, Explanation of Impracticability
Forgone Recovery, Explanation of Impracticability [Text Block]
Schedule of Gross Unrealized Losses and Fair Value by Type and Length of Time Held in a Continuous Unrealized Loss Position
Unrealized Gain (Loss) on Investments [Table Text Block]
Net (gains) losses on investments and derivatives
Net gains (losses) on investments and derivatives
Realized Investment Gains (Losses)
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Non-recurring basis
Fair Value, Nonrecurring [Member]
7.45% Senior Notes, due 2019
Senior Notes Due 2019 at 7.450 Percent [Member]
Senior notes due 2019 at 7.45 percent interest.
Subsegments [Axis]
Subsegments [Axis]
Incurred claims and allocated claim adjustment expenses, net of recoverables
Short-Duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net
2025
Mortgage Loans on Real Estate Maturing in Year One [Member]
This element represents the real estate property mortgages maturing in the first year following the date of the latest balance sheet presented in the financial statements.
Unrealized net capital gains and losses, pre-tax
Total Unrealized Gains (Losses) on Investments before Taxes
The amount of unrealized gain (loss) before taxes on all investment securities, which are included in accumulated other comprehensive income (loss), as a result of fair value exceeding (under) its cost, as of the balance sheet date.
Entity [Domain]
Entity [Domain]
Schedule of Principal Geographic Distribution of Municipal Bond Issuers Exceeding 5% of the Portfolio
Schedule of Principal Geographic Distribution of Municipal Bond [Table Text Block]
This element represents the schedule of principal geographic distribution of municipal bond.
Expected future benefits and expenses, undiscounted
Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance
Reinsurance increase (as a percent)
Reinsurance Increase, Percentage
Reinsurance Increase, Percentage
Washington
WASHINGTON
Assets held for sale
Total assets held for sale
Disposal Group, Including Discontinued Operation, Assets
Reserves for claims and claims expense, contract benefits and contractholder funds
Supplementary Insurance Information, Liability for Future Policy Benefits, Losses, Claims, Loss, Expense Reserves and Contractholder Funds
Amount of reserves for future policy claims payable and loss expenses to be incurred, and the liability as of the balance sheet date to the policyholders for deposits held under the terms of insurance contracts.
Insider Trading Policies and Procedures Adopted
Insider Trading Policies and Procedures Adopted [Flag]
Percentage related to domestic plan and former final average pay formula
Defined Benefit Plan, Percentage Related To Domestic Plan, Based On Former Final Average Pay Formula
Defined Benefit Plan, Percentage Related To Domestic Plan, Based On Former Final Average Pay Formula
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Consolidation, Eliminations
Consolidation, Eliminations [Member]
Transfers into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Net increases related to credit losses
Net decreases (increases) related to credit losses
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Period Increase (Decrease)
After-tax
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Adjusted beginning balance
Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change
Ceded Credit Risk [Table]
Ceded Credit Risk [Table]
NAIC 5-6 / CCC and below
Standard & Poor's, CCC Rating and Below [Member]
Standard & Poor's, CCC Rating and Below [Member]
Other
Insurance, Other [Member]
Entity Voluntary Filers
Entity Voluntary Filers
Net investment income
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income
Hedging Designation [Domain]
Hedging Designation [Domain]
Tax benefit realized on options exercised
Share-Based Payment Arrangement, Exercise of Option, Tax Benefit
Limited partnership interests
Equity Method Investments Unrealized Loss Included in Other Comprehensive Income
The amount of unrealized gains included in accumulated other comprehensive income on equity method investments, as of the balance sheet date.
Recurring Basis
Fair Value, Recurring [Member]
Fair value
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
Debt
Total long-term debt
Long-term debt
Long-Term Debt
Other business lines
Other Business Lines [Member]
Other Business Lines
Expected dividends, minimum range (as a percent)
Share based Compensation Arrangement by Share based Payment Award, Fair Value Assumptions Expected Dividend Rate, Minimum
The estimated minimum dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.
Operating lease, liability, extensible enumeration
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Authorized control level RBC
Statutory Accounting Practices Authorized Control Level Risk Based Capital
Amount of authorized control level risk based capital (RBC) as of the balance sheet date under prescribed or permitted statutory accounting practices.
Valuation change and settlements of derivatives
Gain (Loss) on Derivative Instruments, Net, Pretax
Investment Income [Table]
Investment Income [Table]
Total Shareholder Return Vs Peer Group
Total Shareholder Return Vs Peer Group [Text Block]
Investment expense
Investment Income, Investment Expense
Limited partnership interests
Limited partnership interests
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Kentucky Agreement
Kentucky Agreement [Member]
Kentucky Agreement [Member]
Redemption of preferred stock
Proceeds from (Repurchase of) Redeemable Preferred Stock
Vested (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Other investments, net
Disposal Group Including Discontinued Operation, Other Investments
Disposal Group Including Discontinued Operation, Other Investments
Other investments
Other than Securities Investment [Member]
Parent
Parent [Member]
Risk-free rate (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]
Schedule of Unearned Premiums
Schedule of Unearned Premiums [Table Text Block]
Schedule of Unearned Premiums
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Liabilities
Liabilities [Abstract]
Revenues
Revenues [Abstract]
Short-term investments
Short-Term Investments
Due in one year or less
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value
Catastrophic Event [Axis]
Catastrophic Event [Axis]
PEO Name
PEO Name
Award Type [Domain]
Award Type [Domain]
Compensation Actually Paid vs. Company Selected Measure
Compensation Actually Paid vs. Company Selected Measure [Text Block]
Contractholder funds activity
Movement in Policyholder Contract Deposits [Roll Forward]
Deferred income taxes
Deferred Income Tax Assets, Net
Non-PEO NEO
Non-PEO NEO [Member]
Expected weighted average long-term rate of return on plan assets for the next fiscal year
Defined Benefit Plan, Assumptions Used For Calculating Net Periodic Benefit Cost Expected Long Term Return on Assets for Next Fiscal Year
Represents the long-term rate of return on plan assets for the next fiscal year, reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation, used as an assumption for calculating the net periodic benefit cost.
ULAE
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments, Unallocated Loss Adjustment
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments, Unallocated Loss Adjustment
Reclassified to liabilities held for sale
Liability for Future Policy Benefit, Expected Net Premium, Liabilities Held For Sale
Liability for Future Policy Benefit, Expected Net Premium, Liabilities Held For Sale
Senior Notes Due 2024 at 6.75 Percent
Senior Notes Due 2024 at 6.75 Percent [Member]
Senior Notes Due 2024 at 6.75 Percent
Total
Investments, Fair Value Disclosure
Projected aggregate claim paying capacity
Projected Aggregate Claim Paying Capacity
Represents the projected aggregate claim paying capacity of a state insurance facility in which the entity participates.
Notes payable
Notes due to subsidiaries
Notes Payable
Benefit Plans
Retirement Benefits [Text Block]
NAIC 4 / B
Standard & Poor's, B Rating [Member]
Total
Allowance for Credit Loss
Allowance for Credit Loss
Other
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Adopted accounting standard and Pending accounting standard
New Accounting Pronouncements, Policy [Policy Text Block]
Increase in the provision for credit losses
Premium Receivable, Credit Loss Expense (Reversal)
Accumulated amortization on intangible assets
Finite-Lived Intangible Assets, Accumulated Amortization
Name
Measure Name
Individual health
Individual Health [Member]
Represents interest sensitive life insurance coverage.
Entity Interactive Data Current
Entity Interactive Data Current
Schedule IV — Reinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block]
Fixed income securities
Proceeds from Sale of Debt Securities, Available-for-Sale
Property and casualty insurance claims and claims expense
Claims and claims expense
Policyholder Benefits and Claims Incurred, Net
Deferred tax assets
Components of Deferred Tax Assets [Abstract]
Company Restructuring
Restructuring and Related Activities Disclosure [Text Block]
Total deferred tax assets after valuation allowance
Deferred Tax Assets, Net of Valuation Allowance
Reported at NAV
Fair Value Measured at Net Asset Value Per Share [Member]
Maximum possible assessment
Maximum Possible Assessment, Amount
Represents the maximum possible assessment amount by a state insurance facility in which the entity participates.
Credit Derivative [Table]
Credit Derivative [Table]
Unamortized pension and other postretirement prior service credit
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Contract [Domain]
Contract [Domain]
Contract [Domain]
Accident and health
Accident and health insurance
Allstate Accident And Health [Member]
Allstate Accident And Health
Ceded
Ceded Premiums Written
Fixed income and equity securities carrying value
Securities Loaned, Not Subject to Master Netting Arrangement
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information [Abstract]
Capital Structure
Capital Structure
Net income (loss) applicable to common shareholders, diluted
Net income (loss) applicable to common shareholders, diluted
Net Income (Loss) Available to Common Stockholders, Diluted
Credit Rating, Standard & Poor's [Axis]
Credit Rating, Standard & Poor's [Axis]
Total derivatives, number of contracts
Derivative, Number of Instruments Held
Auditor Firm ID
Auditor Firm ID
Effective income tax rate on income from operations
Effective Income Tax Rate Reconciliation, Percent
Finite-lived trade names
Finite-Lived Trade Names, Gross
Number of reportable segments
Number of Reportable Segments
Percentage of amount assumed to net
SEC Schedule, 12-17, Insurance Companies, Reinsurance, Premium, Percentage Assumed to Net
Percentage of co-participation
Percentage Of Catastrophe
Percentage Of Co-Participation
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Hedging Designation [Axis]
Hedging Designation [Axis]
Adjusted net income (loss) by segment, after-tax
Operating Income (Loss) after Tax
The operating income (loss), net of tax effect, as measured by the entity for segment reporting purposes.
Investment collections
Proceeds from Sale and Collection of Receivables
Net decreases (increases) related to credit losses previously reported
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Previously Recorded
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Allowance for Credit Loss, Previously Recorded
All outstanding liabilities before 2020, net of recoverables
Short-Duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented
Dividends paid
Payments of Dividends
Minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed from january 1, 1991 to december 31, 2003
Minimum Medical Benefits Portion of Personal Injury Protection Coverage Paid for Reimbursement to Insurers for Policies Issued or Renewed from January 1, 1991 to December 31, 2003
Represents the minimum medical benefits portion of personal injury protection coverage for reimbursement to insurers for policies issued or renewed from January 1, 1991 to December 31, 2003.
Discount rate for reserve for future policy benefits
Accumulated Future Policy Benefit Adjustment, Discount Rate, Parent [Member]
Accumulated Future Policy Benefit Adjustment, Discount Rate, Parent
Reclassified to liabilities held for sale
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, Reclassified To Liabilities Held For Sale
Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, Reclassified To Liabilities Held For Sale
Debentures
Junior Subordinated Debentures Due 2067 at 6.125 Percent and Junior Subordinated Debentures Due 2067 at 6.50 Percent [Member]
Represents Series A and Series B Fixed-to-Floating Rate Junior Subordinated Debentures.
Schedule of Debt Maturities
Schedule of Maturities of Long-Term Debt [Table Text Block]
Individual:
Individual [Axis]
Accumulated other comprehensive income (loss)
AOCI Attributable to Parent [Member]
% of total liabilities at fair value
Liabilities as Percent of Liabilities Measured at Fair Value
Liabilities as a percent of total liabilities measured at fair value on a recurring and non-recurring basis.
Schedule of Contractual Amounts of Off-Balance Sheet Financial Instruments
Schedule of Off Balance Sheet Financial Instruments [Table Text Block]
Schedule of the contractual amounts of off-balance-sheet financial instruments.
Public utilities
Public Utility, Bonds [Member]
Weighted-average crediting rate
Policyholder Account Balance, Weighted Average Crediting Rate
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Benefits paid
Defined Benefit Plan, Plan Assets, Benefits Paid
Compensation Actually Paid vs. Total Shareholder Return
Compensation Actually Paid vs. Total Shareholder Return [Text Block]
Restricted net assets
Amount of Restricted Net Assets for Consolidated and Unconsolidated Subsidiaries
PLGIA
PLGIA [Member]
PLGIA [Member]
Noncatastrophic Event [Domain]
Noncatastrophic Event [Domain]
National General Reciprocal Excess Catastrophe Reinsurance Contract
National General Reciprocal Excess Catastrophe Reinsurance Contract [Member]
National General Reciprocal Excess Catastrophe Reinsurance Contract
Property and casualty insurance claims and claims expense
Property Liability Insurance Claims and Claims Expense [Member]
This element represents the location of the gain (loss) included in the Statement of Operations as property-liability insurance claims and claims expense.
Emergency assessment maximum percentage of premiums first year (as a percent)
Emergency Assessment Maximum Percentage of Premiums First Year
The maximum emergency assessment as a premium of all eligible property and casualty premiums in the state, for the payment of bonds issued to provide reimbursements for losses related to mandatory coverage, in the first year that such bonding is required.
Segments [Axis]
Segments [Axis]
Schedule of Equity Awards
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Total long-term debt principal
Long-Term Debt, Gross
Reserve for Property-Liability Insurance Claims and Claims Expense
Reserve for Property-Liability Insurance Claims and Claims Expense
Weighted average health care cost trend rate (as a percent)
Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year
Acquisition of operations, net of cash acquired
Payments To Acquire Operations
Payments To Acquire Operations
Reinsurance recoverable, qualifying losses, amount
Reinsurance Recoverable, Qualifying Losses, Amount
Reinsurance Recoverable, Qualifying Losses, Amount
Schedule of Components of Other Comprehensive Income (Loss) on a Pre-Tax and After-Tax Basis
Comprehensive Income (Loss) [Table Text Block]
Variable Interest Entity [Table]
Variable Interest Entity [Table]
London Interbank Offered Rate
London Interbank Offered Rate [Member]
London Interbank Offered Rate
Current year
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
U.S. Federal NOL
Domestic Tax Jurisdiction [Member]
Adjusted net income
Disposal Group, Including Discontinued Operation, Adjusted Net Income
Disposal Group, Including Discontinued Operation, Adjusted Net Income
Total investments
Investments
Investments
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Repayment of notes due to subsidiaries
Repayment of notes due to subsidiaries
Repayments of Related Party Debt
2028
Finite-Lived Intangible Asset, Expected Amortization, Year Four
All Individuals
All Individuals [Member]
Change in short-term and other investments, net
Change in short-term investments, net
Payments for (Proceeds from) Short-Term Investments
CEA capital balance to be restored
State Facility Maximum Restored Capital Balance
The capital balance level for a state insurance facility that may be restored through assessments.
Reinsurance Retention Policy [Line Items]
Reinsurance Retention [Line Items]
Gross unrealized Losses
Gross Unrealized Loss [Abstract]
Schedule of Other Investments by Asset Type
Schedule of Other Investments, By Type [Table Text Block]
Schedule of Other Investments, By Type [Table Text Block]
Dividends on preferred stock
Dividends, Preferred Stock, Cash
Gross unrealized gains
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Increase (decrease) in claims and claims expense
Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Line Items]
Total unrealized losses
Total Unrealized Loss [Abstract]
Shares reissued under equity incentive plans, net
Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised
Insurance recoupment (as a percent)
Percentage Of Insurance Recoupment
Percentage Of Insurance Recoupment
Net change in proceeds managed
Net Change In Proceeds Managed Collateral
The net change in the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Change in plan assets
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Second Event
Second Event [Member]
Second Event
Louisiana Citizens
Louisiana Citizens [Member]
Represents the Louisiana Citizens Property Insurance Corporation.
Liabilities
Liabilities, Allowance for Credit Loss
Liabilities, Allowance for Credit Loss
Additional borrowing capacity under credit facility increase provision
Line of Credit Facility, Provisional Incremental Borrowing
Amount of additional borrowing allowed under an increase provision contained in the credit facility.
Pension
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions
Legislation to reauthorize
Reinsurance, Legislation to Reauthorize
Reinsurance, Legislation to Reauthorize
Mortgage loans
Mortgage loans on real estate
Mortgages [Member]
Other liabilities and accrued expenses
Disposal Group Including Discontinued Operation, Accrued Liabilities And Other Liabilities
Disposal Group Including Discontinued Operation, Accrued Liabilities And Other Liabilities
Interest accrual
Liability for Future Policy Benefit, Expected Net Premium, Interest Income
Expected volatility (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Schedule of Changes in Restricted Stock Units
Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]
Net amount
Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction
Percent of losses in excess of retention level to be reimbursed (as a percent)
Percent of Losses in Excess of Retention Level Reimbursable
The percentage of losses exceeding the entity's retention level for which access to reimbursement is provided.
Depositary Shares represent 1/1,000th of a share of 4.750% Noncumulative Preferred Stock, Series I
Series I
Series I Preferred Stock [Member]
Series I Preferred Stock
Net change in proceeds managed
Net Change in Proceeds Managed [Abstract]
Real Estate [Domain]
Real Estate [Domain]
Preferred stock additional capital paid-in
Preferred Stock Including Additional Paid in Capital [Member]
National General Lender Services Standalone Program
National General Lender Services Standalone Program [Member]
National General Lender Services Standalone Program
Adjustment for performance achievement (in shares)
Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Other than Options Adjustments in Period
Represents the number of adjustments made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).
Change in benefit obligation
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Accident, health and other policy benefits
Accident Health and Other [Member]
Accident Health and Other
Measure:
Measure [Axis]
Unearned premiums
Unearned Premiums
Asset Class [Domain]
Asset Class [Domain]
Investments
Investments [Abstract]
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Changes in estimated program initiatives and costs
Restructuring And Related Costs, Increase (Decrease) In Expected Cost Remaining
Restructuring And Related Costs, Increase (Decrease) In Expected Cost Remaining
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures
Unrecognized tax benefits, income tax penalties accrued
Unrecognized Tax Benefits, Income Tax Penalties Accrued
Credit default contracts
Credit Default Swap [Member]
Entity Emerging Growth Company
Entity Emerging Growth Company
Maximum annual medical cost inflation after retirement for Company's share of retiree medical benefits cost for non Medicare-eligible retirees (as a percent)
Annual Medical Cost Inflation Limit Percentage
This element represents the percentage limit on the annual medical cost inflation after retirement for the entity's share of the cost of retiree medical benefits for non Medicare-eligible retirees.
Sales
Debt Securities, Gain (Loss)
Indefinite-lived Intangible Assets [Axis]
Indefinite-Lived Intangible Assets [Axis]
Unearned premium, year two
Financial Guarantee Insurance Contract, Premium Revenue to be Recognized, Year Two
Revenues
Liability for Future Policy Benefit, Gross Premium Income
Schedule of Credit Losses Recognized in Net Income
Allowance For Credit Loss, Credit Losses Recognized In Earnings [Table Text Block]
Allowance For Credit Loss, Credit Losses Recognized In Earnings
Total recurring basis liabilities
Liabilities, Fair Value Disclosure
2029
Long-Term Debt, Maturity, Year Five
Fixed income securities
Available for sale Fixed Income Securities, Unrealized Loss Included in Other Comprehensive Income
Represents the unrealized losses included in accumulated other comprehensive income as of the balance sheet date, for the fixed income securities which are categorized neither as held-to-maturity nor trading securities.
Non-GAAP Measure Description
Non-GAAP Measure Description [Text Block]
Less: reclassification adjustment of realized capital gains and losses
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Company's pension plans with ABO in excess of plan assets, aggregate accumulated benefit obligation
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Group health
Group Health [Member]
Represents accident, health and other coverage.
Private equity
Private Equity [Member]
Private Equity [Member]
Long-duration traditional life insurance
Long Duration Traditional Life Insurance And Other [Member]
Long Duration Traditional Life Insurance And Other
Net change in fixed income securities
Net Change in Fixed Income Term Investments of Proceeds Managed Collateral
Net Change in Fixed Income Term Investments of Proceeds Managed Collateral
Earnings per common share:
Earnings Per Share, Attributable to Parent [Abstract]
Schedule of Net Gains (Losses) on Investments and Derivatives by Asset Type
Schedule of Gain (Loss) on Investments by Security Type [Table Text Block]
This item represents the schedule of realized gains and losses reported in the statement of income by type of securities.
Unrealized net capital gains and losses
Change in unrealized net capital gains and losses
(Decrease) increase in unrealized net capital gains and losses, after-tax
Less: change in unrealized net capital gains and losses related to noncontrolling interest
Other Comprehensive Income (Loss), Available for Sale Securities, Including Other than Temporary Impairment Losses Adjustment, Attributable To Noncontrolling Interests, Net of Tax
Net of tax amount of the appreciation (loss) in the value of unsold available-for-sale securities. Includes amounts related to other than temporary impairment (OTTI) losses.
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
2028
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
Statement [Table]
Statement [Table]
Summary of Significant Accounting Policies
Significant Accounting Policies [Text Block]
Reserved common stock authorized and unissued for debentures obligations (in shares)
Common Stock Authorized and Unissued Reserved for Debt Obligations
Represents the common shares reserved to satisfy the debt obligations.
Accident and health insurance
Accident and Health Insurance Product Line [Member]
Mortgage loans on real estate, carrying value (as a percent)
Mortgage Loans on Real Estate, Carrying Value Percentage
This element represents the amount of mortgage loans as a percentage of total carrying value.
Schedule of Assets and Liabilities of Reciprocal Exchanges
Schedule of Variable Interest Entities [Table Text Block]
Redemption price as percentage of principal amount plus accrued and unpaid interest (as a percent)
Long Term Debt Redemption Price
The percentage of the principal amount plus accrued and unpaid interest at which the debt instrument is subject to redemption at the entity's option.
Cash surrender value
Policyholder Account Balance, Cash Surrender Value
Pension plan weighted average target asset allocation by asset category
Defined Benefit Plan, Information about Plan Assets [Abstract]
Prior year reserve reestimates for pre-2020 accident years
Short-duration Insurance Contracts, Accident Year Before 2020 [Member]
Short-duration Insurance Contracts, Accident Year Before 2020
Remaining program charges
Restructuring and Related Cost, Expected Cost Remaining
Unearned premiums
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Unearned Premium
Quoted prices in active markets for identical assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Unrealized foreign currency translation adjustments
Change in unrealized foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Benefits
Benefits Paid from Contract Holder Funds
Decrease in the liability for policyholder contract deposits resulting from benefits paid out of contract holder funds.
Other personal lines
Other Personal Lines [Member]
Other personal lines include other personal lines that are not separately disclosed.
Deferred Policy Acquisition Costs Disclosures [Abstract]
Accrued compensation
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation
Tax Period [Domain]
Tax Period [Domain]
Unrecognized tax benefits, interest (benefit) expense
Unrecognized Tax Benefits, Interest on Income Taxes Expense
2027
Long-Term Debt, Maturity, Year Three
Employer contribution
Defined Benefit Plan, Plan Assets, Contributions by Employer
Present value of expected future policy benefits
Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward]
Total paid
Paid
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Income Taxes
Income Tax Disclosure [Text Block]
Accumulated other comprehensive income:
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Limited partnership interests
Proceeds from Divestiture of Interest in Limited Partnership Interest
Proceeds from Divestiture of Interest in Limited Partnership Interest
Research & development capitalization
Deferred Tax Assets, Capitalization Of Research And Development
Deferred Tax Assets, Capitalization Of Research And Development
Service cost, refund
Defined Benefit Plan, Alternative Method Used to Amortize Prior Service Cost, Refund
Defined Benefit Plan, Alternative Method Used to Amortize Prior Service Cost, Refund
Other long-term investments
Other Long-Term Investments [Member]
Total prior year reserve reestimates
Prior Year Reserve Estimates Increase (Decrease)
Prior Year Reserve Estimates Increase (Decrease)
Supplementary Insurance Information
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Adirondack
Adirondack [Member]
Adirondack
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Total gains (losses) included in: OCI
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)
Reinsurance Coverage [Axis]
Reinsurance Coverage [Axis]
Reinsurance Coverage
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Schedule of Exchange Traded and Cleared Margin Deposits
Schedule Of Margin Deposits [Table Text Block]
Schedule Of Margin Deposits
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Traditional life
Traditional Life Insurance [Member]
Represents traditional life insurance coverage.
Entity Registrant Name
Entity Registrant Name
Adjustment to Non-PEO NEO Compensation Footnote
Adjustment to Non-PEO NEO Compensation Footnote [Text Block]
Less recoverables
Plus recoverables
Recoverables
Unpaid losses estimated (including IBNR)
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
0.750% Senior Notes, due 2025
Senior Notes Due 2025 at 0.750 Percent [Member]
Senior Notes Due 2025 at 0.750 Percent
Total auto and homeowners insurance
Auto and Homeowners Insurance [Member]
Auto and Homeowners Insurance [Member]
Significant other observable inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Short-term investments
Available For Sale Short-Term Investments, Unrealized Gain (Loss) Included In Other Comprehensive Income
Available For Sale Short-Term Investments, Unrealized Gain (Loss) Included In Other Comprehensive Income
Share of the CEA (as a percent)
Market share (as a percent)
Percentage of Entity Interest
Represents the entity's share in a state insurance facility.
Maximum debt to capital ratio allowed under credit facility covenant (as a percent)
Maximum Debt to Capital Ratio to Avail Credit Facility
The maximum debt to capital resources ratio allowed by the credit facility financial covenant.
Equity
Shareholders’ equity
Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Geographical [Domain]
Geographical [Domain]
Restructuring Cost [Table]
Restructuring Cost [Table]
Restatement Determination Date:
Restatement Determination Date [Axis]
Title of 12(b) Security
Title of 12(b) Security
Share-Based Payment Arrangement [Abstract]
Reserve for Life-Contingent Contract Benefits and Contractholder Funds
Reserve for Future Policy Benefits and Contractholder Funds
CEA capital balance threshold
State Facility Capital Balance Threshold
The capital balance of a state insurance facility, below which an assessment is triggered.
Reduction related to sales
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Loan Sold
State income taxes
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
Cash collateral (received) pledged
Derivative Asset, Subject To Master Netting Arrangement, Collateral, Obligation To Return Cash, Offset Against Derivative Asset, Net
Derivative Asset, Subject To Master Netting Arrangement, Collateral, Obligation To Return Cash, Offset Against Derivative Asset, Net
Due after ten years
Long-Term Debt, Maturities, Repayments Of Principal In Rolling After Year Ten
Long-Term Debt, Maturities, Repayments Of Principal In Rolling After Year Ten
Trade names and licenses
Trade Names and Licenses [Member]
Trade Names and Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Catastrophe annual reinstatement of limits
Catastrophe Insurance, Annual Reinstatement Of Limits
Catastrophe Insurance, Annual Reinstatement Of Limits
Reinsurance Coverage [Domain]
Reinsurance Coverage [Domain]
Coverage [Domain]
NAIC 3 / BB
Standard & Poor's, BB Rating [Member]
Coverage - III
Coverage - III [Member]
Coverage - III
Cash flows from financing activities
Net Cash Provided by (Used in) Financing Activities [Abstract]
Deposits
Deposits to Contract Holder Funds
Increase in the liability for policyholder contract deposits resulting from amounts received during the period from the insured.
Total deferred tax liabilities
Deferred Tax Liabilities, Gross
Net income (loss) applicable to common shareholders per common share - Basic (in dollars per share)
Earnings Per Share, Basic
Award Timing MNPI Disclosure
Award Timing MNPI Disclosure [Text Block]
Total plan assets at fair value
Defined Benefit Plan, Fair Value of Plan Assets (Liabilities), Gross
The fair value of plan assets before net receivables and reductions for liabilities other than for benefits.
Reserve Reestimates [Domain]
Reserve Reestimates [Domain]
[Domain] for Reserve Reestimates [Axis]
Aggregate Pension Adjustments Service Cost
Aggregate Pension Adjustments Service Cost [Member]
Dividends Payable [Line Items]
Dividends Payable [Line Items]
Goodwill [Table]
Goodwill [Table]
2025
Finite-Lived Intangible Asset, Expected Amortization, Year One
Line of credit
Short-term debt
Long-Term Line of Credit
Reserve for Property and Casualty Insurance Claims and Claims Expense
Reserve for Property Liability Insurance Claims and Claims Expense Disclosure [Text Block]
Describes the various components of the reserve for property-liability future policy benefits and guaranteed minimum benefits, and for claims and claims adjustment expenses; the significant assumptions for estimating claims losses; causes of significant variances from prior periods (such as catastrophes, asbestos and environmental claims reserve losses); and reconciliations of beginning to ending reserve balances.
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Expected future gross premiums, discounted
Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance
U.S. government and agencies
United States government, government agencies and authorities
US Treasury and Government [Member]
Liability derivatives, gross asset
Counter- party netting
Derivative Liability, Subject to Master Netting Arrangement, Asset Offset
Risk-free rate, low end of the range (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum
Nonredeemable preferred stocks
Nonredeemable Preferred Stock [Member]
Expected volatility, high end of the range (as a percent)
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum
Due after five years through ten years
Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Rolling after 5 through 10 Years, Amortized Cost
Total revenues
Total revenues
Revenues
Revenues
Investment collections
Proceeds from Collection of Investments [Abstract]
Equity Incentive Plans
Share-Based Payment Arrangement [Text Block]
Deferred Policy Acquisition and Sales Inducement Costs [Table]
Deferred Policy Acquisition and Sales Inducement Costs [Table]
Schedule of disclosures related to deferred policy acquisition and sales inducement costs by segment.
Percentage of credit concentration risk of single issuer and affiliates of shareholder's equity (as a percent)
Threshold for Disclosure Percentage
Threshold percentage which the entity uses for disclosure.
Florida Program
Florida Program [Member]
Florida Program
Schedule of Option Activity
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
Intrinsic value of options exercised
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value
Allowance credit losses
Beginning balance
Ending balance
Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest
Compensation expense
Share-Based Payment Arrangement, Expense
Contingent consideration term (in years)
Disposal Group, Including Discontinued Operation, Contingent Consideration, Term
Disposal Group, Including Discontinued Operation, Contingent Consideration, Term
Granted (in dollars per share)
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Discretionary contribution to qualified pension plan
Defined Contribution Plan, Employer Discretionary Contribution Amount
Loss Contingencies [Table]
Loss Contingencies [Table]
Weighted average assumptions used to determine benefit obligations
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]
Real estate
Real Estate Loan [Member]
Schedule of Gross and Net Amounts for OTC Derivatives
Offsetting Assets and Liabilities [Table Text Block]
Tabular disclosure of derivative and other financial assets and liabilities that are subject to offsetting, including master netting arrangements.
Derivative instruments
Fair Value of Derivative Instruments with Unrealized Net Capital Gain (Loss)
Fair value as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, for which an unrealized net gain or loss is included in accumulated other comprehensive income.
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year
Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member]
Foreign NOL
Foreign Tax Jurisdiction [Member]
Direct
Direct Life and Annuity Premiums and Contract Charges
Premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are written and earned directly by the insurer before adding contracts assumed from other insurers or subtracting any amounts assumed by other insurers.
Liabilities
Liabilities, Fair Value Disclosure [Abstract]
Document Fiscal Year Focus
Document Fiscal Year Focus
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Total assets at fair value
Total assets at fair value
Assets, Fair Value Disclosure
Action level RBC expressed as a multiplier of authorized control level RBC, which if not achieved would require specific actions to be taken
Statutory Accounting Practices Multiplier of Authorized Control Level Risk Based Capital To Determine Action Level Risk Based Capital
Represents the multiplier of authorized control level risk based capital to determine action level risk based capital.
Outstanding at the beginning of the period (in shares)
Outstanding at the end of the period (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
1 year
Short-Duration Insurance Contracts, Historical Claims Duration, Year One
Expired (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period
Due in one year through five years
Long Term Debt Maturing Next Twelve Months Years Through Five
Long Term Debt Maturing Next Twelve Months Years Through Five
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment [Member]
Aggregate liquidation preference
Proceeds from Issuance of Preferred Stock Gross
The aggregate proceeds from issuance of capital stock which provides for a specific dividend that is paid to the shareholders before any dividends to common stockholders and which takes precedence over common stockholders in the event of liquidation.
Schedule of Statutory Net Income (Loss) and Capital and Surplus of Allstate’s Domestic Insurance Subsidiaries
Schedule of Statutory Financial Information [Table Text Block]
Schedule of statutory net income and capital and surplus, determined in accordance with statutory accounting practices prescribed or permitted by insurance regulatory authorities.
General
General [Text Block]
The disclosure of both the organization, consolidation and presentation of financial statements and the disclosure of the new accounting pronouncements adopted and not yet adopted.
Other contracts
Other Contract [Member]
Coverage - I
Coverage - I [Member]
Coverage - I
2019 and prior
Acquisition, 2019 And Prior [Member]
Acquisition, 2019 And Prior
Investment purchases
Payments to Acquire Investments [Abstract]
Liability for Future Policy Benefit Activity [Table]
Liability for Future Policy Benefit Activity [Table]
Foreign currency contracts
Foreign Exchange Contract [Member]
Derivative instruments
Derivative Instruments, Unrealized Gain (Loss) Included in Other Comprehensive Income
The amount of unrealized gains (losses) included in accumulated other comprehensive income on derivative instruments, as a result of fair value exceeding (under) its amortized cost, as of the balance sheet date.
Deferred policy acquisition costs held for sale
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Disposition
Floating Rate Subordinated Debentures, due 2053
First Floating Rate Subordinated Debentures, Due 2053 [Member]
First Floating Rate Subordinated Debentures, Due 2053
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Entity Current Reporting Status
Entity Current Reporting Status
5 years
Short-Duration Insurance Contracts, Historical Claims Duration, Year Five
Transfers (to) from held for sale
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers (To) From Held For Sale
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers (To) From Held For Sale
Deferred policy acquisition costs
Deferred Policy Acquisition and Sales Inducement Costs [Policy Text Block]
Describes an insurance entity's accounting policy for deferred policy acquisition costs, including the nature, type, and amount of capitalized costs incurred to write or acquire insurance contracts, and the basis for and methodologies applied in capitalizing and amortizing such costs. Also describes the accounting policy for sales inducements, including the yield enhancement features, such as interest credits and bonuses, given to motivate purchases of insurance products, and description of the nature of the costs deferred and the method for amortizing such deferred costs.
Retained income
Retained Earnings [Member]
Allstate Protection
Allstate Protection [Member]
Allstate Protection comprises two brands, the Allstate brand and Encompass brand.
Debt securities valued based on third-party discounted cash flow pricing models
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Third-Party Discounted Cash Flow Models
Debt Securities, Available-for-Sale, Excluding Accrued Interest, Third-Party Discounted Cash Flow Models
Non-recurring costs
Litigation Settlement, Fee Expense
20-Year Carryforward Expires in 2025-2044
20-Year Carryforward Expires In 2025-2044 [Member]
20-Year Carryforward Expires In 2025-2044
Insurance premiums and contract charges
Insurance premiums
Net amount
Premiums Earned, Net
Restricted stock units
Restricted Stock Units (RSUs) [Member]
Translation adjustment and other
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax
Increase (decrease) in equity [Roll forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Executive Category:
Executive Category [Axis]
Net change in short-term investments
Net Change in Short Term Investments of Proceeds Managed Collateral
The net change in short-term investments from the proceeds managed related to collateral received in conjunction with the entity's securities lending and over-the-counter derivatives.
Schedule of Components of Income Tax Expense (Benefit)
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]