Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Net of tax
Marketable Securities [Member]
Marketable Securities.
Total pretax
Pretax [Member]
Total Pretax.
Fixed maturities
Fixed Maturities [Member]
Equity securities
Equity Securities [Member]
Mortgage loans and other investments
Mortgage Loans And Other Investments [Member]
Mortgage loans and other investments.
Other, Including DPAC and reserves related to the annuity business
Other, Including DPAC and Reserves on Annuity and Long-term Care [Member]
Other, including deferred policy acquisition costs ("DPAC") asset and annuity benefits accumulated and long-term care liabilities.
Tax effects
Tax Effects [Member]
Tax effects.
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-sale [Line Items]
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized Gains Losses And Changes In Unrealized Appreciation Depreciation Related To Fixed Maturity And Equity Security Investments [Abstract]
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments.
Realized before impairments
Marketable Securities, Realized Gain (Loss), Excluding Other-than-temporary Impairment Loss
Realized — impairments
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities
Realized gains (losses) on securities
Marketable Securities, Realized Gain (Loss)
Change in unrealized
Change In Unrealized Appreciation Depreciation
Change in unrealized appreciation depreciation.
Subsequent Events [Abstract]
Subsequent Events [Text Block]
Subsequent Events [Text Block]
Income Tax Disclosure [Abstract]
Income Taxes
Income Tax Disclosure [Text Block]
Total fixed maturities
Fixed maturities — annuity segment
Fixed Maturities Annuity Segment [Member]
Fixed maturities, annuity segment.
Fixed maturities — all other
Fixed Maturities All Other Segments [Member]
Fixed maturities, all other segments.
Deferred policy acquisition costs — annuity segment
Deferred Policy Acquisition Costs Annuity Segment [Member]
Deferred policy acquisition costs, annuity segment.
Annuity benefits accumulated
Annuity Benefits And Other Liabilities [Member]
Annuity benefits and other liabilities.
Life, accident and health reserves
Life, Accident, and Health Reserves [Member]
Life, Accident, and Health Reserves
Unearned revenue
Unearned Revenue [Member]
Unearned revenue.
Components of the net unrealized gain on securities, included in Accumulated Other Comprehensive Income
Components Of Net Unrealized Gain On Securities Included In Accumulated Other Comprehensive Income [Abstract]
Components of the net unrealized gain on securities, included in Accumulated Other Comprehensive Income.
Unrealized gain on:
Unrealized Gain On Securities Included In Accumulated Other Comprehensive Income [Abstract]
unrealized gain on securities, included in Accumulated Other Comprehensive Income.
Pretax
Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Pretax
Accumulated other comprehensive income loss available for sale securities adjustment, pretax.
Deferred Tax
Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Deferred Tax And Non controlling Interest
Accumulated other comprehensive income loss available for sale securities adjustment deferred tax and non controlling interest.
Net
AOCI, Debt Securities, Available-for-sale, Adjustment, after Tax
Deferred Policy Acquisition Costs Disclosures [Abstract]
Deferred Policy Acquisition Costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits [Text Block]
This element includes data and tables pertaining to (1) the nature and amount of capitalized costs incurred to write or acquire insurance contracts and the accounting for such deferred acquisition costs (DAC) and (2) the nature and amount of the present value of future profits (PVFP) of estimated net cash flows embedded in the existing long-duration contracts of acquired life insurance entities, the amount of amortization and other information pertinent to an understanding of PVFP, which is also known as Value of Business Acquired, or VOBA.
Insurance [Abstract]
insurance [Table]
insurance [Table]
insurance
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Neon Capital Limited
Neon Capital Limited [Member]
Neon Capital Limited.
Insurance [Line Items]
Insurance [Line Items]
Insurance
Loss and LAE incurred in Neon exited lines
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Variable interest entity, primary beneficiary
Variable Interest Entity, Primary Beneficiary [Member]
Collateralized loan obligations
Collateralized Loan Obligations [Member]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Maximum
Maximum [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Subordinated Debt Obligations
Subordinated Debt Obligations [Member]
Managed by third parties
Managed by Third Parties [Member]
Managed by third parties
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Percentage of investment of most subordinate debt tranche, Minimum
Percentage of Investment of Most Subordinate Debt Tranche of Variable Interest Entity Minimum
Minimum percentage of investment of most subordinate debt tranche of variable interest entity.
Percentage of investment of most subordinate debt tranche, Maximum
Percentage of Investment of Most Subordinate Debt Tranche of Variable Interest Entity Maximum
Maximum percentage of investment of most subordinate debt tranche of variable interest entity.
Number of collateralized loan obligation entities
Number of Collateralized Loan Obligation Entities
Number of collateralized loan obligation entities.
Aggregate fair value of investment in collateralized loan obligations
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount
Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date
Face Amount Of Managed Investment Entities Liabilities Purchased By Subsidiaries After Issuance Date
Face amount of managed investment entities liabilities purchased by subsidiaries after issuance date.
Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date
Amount Paid By Subsidiaries To Purchase Managed Investment Entities Liabilities After Issuance Date.
Amount paid by subsidiaries to purchase managed investment entities liabilities after issuance date.
Proceeds received by subsidiaries related to sales and redemptions of managed investment entities liabilities
Proceeds Received By Subsidiaries Related to Sales and Redemptions of Managed Investment Entities Liabilities
Proceeds received by subsidiaries related to sales and redemptions of managed investment entities liabilities.
Difference between aggregate unpaid principal balance and fair value of CLOs' fixed maturity investments
Difference Between Aggregate Unpaid Principal Balance And Fair Value Of Variable Interest Entity Investments
Difference between aggregate unpaid principal balance and fair value of variable interest entity investments.
Difference between aggregate unpaid principal balance and carrying value of CLOs' debt
Difference Between Aggregate Unpaid Principal Balance And Fair Value Of Variable Interest Entity Debt
Difference between aggregate unpaid principal balance and fair value of variable interest entity debt.
Carrying amount of CLO loans in default
Carrying Amount Of Variable Interest Entity Loans In Default
Carrying amount of variable interest entity loans in default.
Aggregate unpaid principal balance of variable interest entity loans in default
Aggregate unpaid principal balance of variable interest entity loans in default
Aggregate unpaid principal balance of variable interest entity loans in default
Available for sale (AFS) fixed maturities
Debt Securities, Available-for-sale
Fair Value Disclosures [Abstract]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Schedule of Investments [Table]
Schedule of Investments [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-01
Accounting Standards Update 2016-01 [Member]
Investment Type [Axis]
Investment Type [Axis]
Investments [Domain]
Investments [Domain]
Residential MBS
Residential Mortgage Backed Securities [Member]
Corporate bonds
Corporate Bond Securities [Member]
Other asset-backed securities
Asset-backed Securities [Member]
Schedule of Investments [Line Items]
Schedule of Investments [Line Items]
Gross unrealized losses on fixed maturities
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax
Number of available for sale securities in an unrealized loss position
Number of Available For Sale Securities In Unrealized Loss Position
Number of available-for-sale securities in an unrealized loss position.
Percentage (based on amount of unrealized loss) of available for sale fixed maturities that are in an unrealized loss position and rated investment grade
Percentage (based on unrealized loss) of available for sale fixed maturities that are in unrealized loss position and rated investment grade
Percentage based on unrealized loss of available for sale fixed maturities that are in an unrealized loss position and rated investment grade.
Percentage (based on fair value) of available for sale fixed maturities that are in an unrealized loss position and rated investment grade
Percentage (based on fair value) of available for sale fixed maturities that are in unrealized loss position and rated investment grade
Percentage (based on fair value) of available for sale fixed maturities that are in an unrealized loss position and rated investment grade.
Allowance for credit losses
Debt Securities, Available-for-sale, Allowance for Credit Loss, Period Increase (Decrease)
Net investment income
Net Investment Income
Investment income
Gross Investment Income, Operating
Commitments and Contingencies Disclosure [Abstract]
Contingencies
Commitments and Contingencies Disclosure [Text Block]
Selected financial information related to collateralized loan obligations
Schedule of Variable Interest Entities [Table Text Block]
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Transaction Type [Axis]
Transaction Type [Axis]
Transaction [Domain]
Transaction [Domain]
Contract termination
Contract Termination [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other assets
Other Assets [Member]
Other liabilities
Other Liabilities [Member]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Cash Flow Hedges
Cash Flow Hedging [Member]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Designated as Hedging Instrument
Designated as Hedging Instrument [Member]
Derivative Instrument Risk [Axis]
Derivative Instrument [Axis]
Derivative Contract Type [Domain]
Derivative Contract [Domain]
Interest rate swaps
Interest Rate Swap [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Carrying value of collateral received to support purchased call options
Derivative, Collateral, Right to Reclaim Cash
Number of interest rate swaps designated and qualifying as a cash flow hedges
Number of Interest Rate Derivatives Held
Derivative, notional amount
Derivative, Notional Amount
Number of interest rate derivatives terminated
Number of Interest Rate Derivatives Terminated
Number of interest rate derivative instruments terminated during the reporting period.
Net derivatives, at fair value
Derivative, Fair Value, Net
Gain (loss) reclassified from AOCI into net investment income
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net
Collateral payable related to interest rate swaps
Liability to Return Cash Borrowed Related to Swaps
Amount of obligation to return cash borrowed from swap collateral.
Collateral receivable related to interest rate swaps
Receivable for Collateral Posted Related to Swaps
Receivable for collateral posted related to swaps
Managed Investment Entities
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Text Block]
The entire disclosure of consolidation and basis of presentation of variable interest entities, in which the registrant is deemed to be the primary beneficiary, even though it does not hold a majority voting interest.
Insurance
Insurance Disclosure [Text Block]
Stockholders' Equity Note [Abstract]
Components of accumulated other comprehensive income (loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Voting Preferred Stock
Voting Preferred Stock [Member]
Voting preferred stock.
Nonvoting Preferred Stock
Nonvoting Preferred Stock [Member]
Nonvoting preferred stock.
Class of Stock [Line Items]
Class of Stock [Line Items]
Preferred Stock, shares authorized
Preferred Stock, Shares Authorized
Preferred Stock, par value (in USD per share)
Preferred Stock, No Par Value
Assets and liabilities measured at fair value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Unobservable inputs used by management in determining fair value of embedded derivatives
Schedule Of Embedded Derivatives Unobservable Inputs [Table Text Block]
Schedule of embedded derivatives unobservable inputs.
Changes in balances of Level 3 financial assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Changes in balances of Level 3 financial liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Fair value of financial instruments
Fair Value, by Balance Sheet Grouping [Table Text Block]
Accounting Policies [Abstract]
Accounting Policies [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption [Axis]
Information by cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption [Domain]
[Domain] for Information by cumulative-effect adjustment to financial statements in period of adoption of amendment to accounting standards.
Cumulative effect adjustment in period of adoption
Cumulative Effect, Period of Adoption, Adjustment [Member]
Increase (decrease) to financial statements for cumulative-effect adjustment in period of adoption or amendment to accounting standards.
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Retained Earnings
Retained Earnings [Member]
Accounting Standards Update 2016-13
Accounting Standards Update 2016-13 [Member]
Significant Accounting Policies [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of accounting change
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Operating lease liability
Operating Lease, Liability
Operating lease right-of-use asset
Operating Lease, Right-of-Use Asset
Weighted average common shares adjustment related to stock-based compensation (shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Anti-dilutive potential common shares related to stock-based compensation plans (shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Maturities of short term investments
Maturity Period Of Short Term Investment Maximum
Maturity period of short term investment maximum.
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Beginning Balance
Premium Receivable, Allowance for Credit Loss
Impact of adoption of new accounting principles
Provision (credit) for expected credit losses
Premium Receivable, Credit Loss Expense (Reversal)
Write-offs charged against the allowance
Premium Receivable, Allowance for Credit Loss, Writeoff
Ending Balance
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Subsegments [Axis]
Subsegments [Axis]
Subsegments [Domain]
Subsegments [Domain]
Other lines
Other Lines [Member]
Other lines.
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Property and Casualty Insurance
Property and Casualty Insurance [Member]
Property and casualty insurance.
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Number of segments
Number of Reportable Segments
Total premiums earned
Premiums Earned, Net, Property and Casualty
Property and casualty insurance underwriting
Property and Casualty Insurance Underwriting Income (Loss)
Underwriting income (loss) for the property and casualty insurance segment, which is calculated as premiums earned less losses and loss adjustment expenses less commissions and other underwriting expenses.
Investment and other income, net
Investment and Other Income, Net
Net investment income plus other income less other expenses.
Subsequent Event [Table]
Subsequent Event [Table]
AFG
Parent Company [Member]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Senior Notes
Senior Notes [Member]
Senior Notes due in April 2030
Senior Notes Due In April 2030 [Member]
Senior Notes due in April 2030
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent event
Subsequent Event [Member]
Subsequent Event [Line Items]
Subsequent Event [Line Items]
Senior Notes, aggregate principal amount
Debt Instrument, Face Amount
Interest rate on debt instruments
Debt Instrument, Interest Rate, Stated Percentage
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Stock Incentive Plan
Share-based Payment Arrangement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Common Stock, shares issued (shares)
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Restricted Common Stock, fair value per share (USD per share)
Restricted Common Stock Issued Fair Value Per Share
Restricted Common Stock issued, fair value per share.
Compensation expense related to stock incentive plans
Share-based Payment Arrangement, Expense
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Statement, Equity Components [Axis]
Total
Parent [Member]
Common Shares
Common Stock [Member]
Common Stock and Capital Surplus
Common Stock Including Additional Paid in Capital [Member]
Accumulated Other Comp. Income (Loss)
AOCI Attributable to Parent [Member]
Noncontrolling interests
Noncontrolling Interest [Member]
Statement [Line Items]
Statement [Line Items]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance, shares
Common Stock, Shares, Outstanding
Beginning Balance
Net earnings (losses) attributable to parent
Net Income (Loss) Attributable to Parent
Net earnings (losses) including portion attributable to nonredeemable noncontrolling interest
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest
Other comprehensive income (loss), attributable to parent
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other comprehensive income (loss) including portion attributable to nonredeemable noncontrolling interest
Other Comprehensive Income (Loss), Net of Tax, including Portion Attributable to Noncontrolling Interest
Amount after tax and reclassification adjustments of other comprehensive income (loss), including portion attributable to noncontrolling interest.
Dividends
Dividends, Common Stock, Cash
Shares issued:
Shares Issued [Abstract]
Shares issued.
Exercise of stock options, shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Restricted stock awards, shares
Other benefit plans, shares
Shares Issued, Shares, Share-based Payment Arrangement, before Forfeiture
Other benefit plans
Shares Issued, Value, Share-based Payment Arrangement, before Forfeiture
Dividend reinvestment plan, shares
Stock Issued During Period, Shares, Dividend Reinvestment Plan
Dividend reinvestment plan
Stock Issued During Period, Value, Dividend Reinvestment Plan
Stock-based compensation expense
APIC, Share-based Payment Arrangement, Increase for Cost Recognition
Shares acquired and retired, shares
Stock Repurchased During Period, Shares
Shares acquired and retired
Stock Repurchased and Retired During Period, Value
Shares exchanged — benefit plans, shares
Stock Repurchased Shares Exchanged in Stock Compensation Plans, Shares
Repurchased shares exchanged in stock compensation plans, shares
Shares exchanged — benefit plans
Stock Repurchased Shares Exchanged in Stock Compensation Plans, Value
Stock repurchased, shares exchanged in stock compensation plans, value.
Forfeitures of restricted stock, shares
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited
Other
Stockholders' Equity, Other
Ending Balance, shares
Ending Balance
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]
Redeemable Noncontrolling Interest, Equity, Carrying Amount [Abstract]
Beginning Balance, Redeemable Noncontrolling Interests
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests
Net earnings attributable to redeemable noncontrolling interests
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest
Other comprehensive income (loss) attributable to redeemable noncontrolling interests
Other Comprehensive Income (Loss), Net of Tax Attributable to Redeemable Noncontrolling Interests
Other comprehensive income (loss), net of tax attributable to redeemable noncontrolling interests
Other
Temporary Equity, Other Changes
Ending Balance, Redeemable Noncontrolling Interests
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Subordinated Debentures
Subordinated Debt [Member]
4.50% Senior Notes due June 2047
Senior Notes Due In June 2047 [Member]
Senior Notes due in June 2047.
3.50% Senior Notes due August 2026
Senior Notes Due In August 2026 [Member]
Senior Notes due in August 2026.
5.125% Subordinated Debentures due December 2059
Subordinated Debentures due in December 2059 [Member]
Subordinated Debentures due in December 2059
6% Subordinated Debentures due November 2055
Subordinated Debentures Due In November 2055 [Member]
Subordinated Debentures due in November 2055.
5.875% Subordinated Debentures due in March 2059
Subordinated Debentures Due In March 2059 [Member]
Subordinated Debentures Due In March 2059
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
LIBOR
London Interbank Offered Rate (LIBOR) [Member]
Minimum
Minimum [Member]
Maximum
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Long-term Debt, Fiscal Year Maturity [Abstract]
Long-term Debt, Fiscal Year Maturity [Abstract]
Scheduled principal payments on debt remainder of fiscal year
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year
Scheduled principal payments on debt in year two
Long-term Debt, Maturities, Repayments of Principal in Year Two
Scheduled principal payments on debt in year three
Long-term Debt, Maturities, Repayments of Principal in Year Three
Scheduled principal payments on debt in year four
Long-term Debt, Maturities, Repayments of Principal in Year Four
Scheduled principal payments on debt in year five
Long-term Debt, Maturities, Repayments of Principal in Year Five
Scheduled principal payments on debt in year six
Long-Term Debt, Maturities, Repayments Of Principal In Year Six
Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the sixth fiscal year following the latest fiscal year ended.
Revolving credit line
Line of Credit Facility, Maximum Borrowing Capacity
Interest rate on revolving debt facility
Debt Instrument, Basis Spread on Variable Rate
Amount borrowed under revolving credit facility
Long-term Line of Credit
Interest rate description for revolving credit facility
Line of Credit Facility, Interest Rate Description
Statement of Comprehensive Income [Abstract]
Net earnings (loss), including noncontrolling interests
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Other comprehensive income (loss), net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Net unrealized gains (losses) on securities:
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract]
Unrealized holding gains (losses) on securities arising during the period
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax
Reclassification adjustment for realized (gains) losses included in net earnings
Other Comprehensive Income (Loss), Reclassification Adjustment for Realized Gains (Losses) Included in Net Income Net of Tax
Reclassification adjustment for unrealized gains or losses realized upon the sale and write-down of securities, after tax.
Total net unrealized gains (losses) on securities
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax
Net unrealized gains on cash flow hedges
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Other comprehensive income (loss), net of tax
Other Comprehensive Income (Loss), Net of Tax
Total comprehensive income (loss), net of tax
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Less: Comprehensive income (loss) attributable to noncontrolling interests
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
Comprehensive income (loss) attributable to shareholders
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Statement of Financial Position [Abstract]
Fixed maturities, available for sale at amortized cost
Debt Securities, Available-for-sale, Amortized Cost
Fixed maturities, available for sale, allowance for expected credit losses
Debt Securities, Available-for-sale, Allowance for Credit Loss
Common Stock, par value (USD per share)
Common Stock, No Par Value
Common Stock, shares authorized
Common Stock, Shares Authorized
Common Stock, shares outstanding
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Asset Class [Axis]
Asset Class [Axis]
Fair Value by Asset Class [Domain]
Asset Class [Domain]
U.S. government agency
US Treasury and Government [Member]
State and municipal
US States and Political Subdivisions Debt Securities [Member]
Residential MBS
Commercial MBS
Commercial Mortgage Backed Securities [Member]
Corporate and other
Corporate Debt Securities [Member]
Assets of MIE
Assets of Managed Investment Entities [Member]
Assets of managed investment entities.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Financial assets, Beginning Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Total realized/unrealized gains (losses) included in Net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Total realized/unrealized gains (losses) included in other comprehensive income (loss)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss)
Purchases and issuances
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Sales and settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Transfer into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Transfer out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Financial assets, Ending Balance
Available for sale fixed maturities
Schedule of Available-for-sale Securities Reconciliation [Table Text Block]
Equity securities reported at fair value
Marketable Securities [Table Text Block]
Available for sale securities in a continuous unrealized loss position
Schedule of Unrealized Loss on Investments [Table Text Block]
Roll forward of allowance for credit losses on fixed maturity securities
Debt Securities, Available-for-sale, Allowance for Credit Loss [Table Text Block]
Available for sale fixed maturity securities by contractual maturity date
Investments Classified by Contractual Maturity Date [Table Text Block]
Components of the net unrealized gain on securities, included in Accumulated Other Comprehensive Income
Unrealized Gain (Loss) on Investments [Table Text Block]
Net investment income earned and investment expenses incurred
Investment Income [Table Text Block]
Realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments
Realized Gains (Losses) and Changes in Unrealized Appreciation (Depreciation) Related to Fixed Maturity and Equity Security Investments [Table Text Block]
Tabular disclosure of realized gains (losses) and changes in unrealized appreciation (depreciation) related to fixed maturity and equity security investments.
Holding gains (losses) on equity securities still held
Holding Gains (Losses) on Equity Securities Still Held [Table Text Block]
Tabular disclosure of holding gains (losses) on equity securities still held.
Gross realized gains and losses on available for sale fixed maturity and equity security investments
Schedule of Realized Gain (Loss) [Table Text Block]
Loss Contingencies [Table]
Loss Contingencies [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Run-off Long-term Care and Life
Run-off Long-term Care and Life [Member]
Run-off Long-term Care and Life [Member]
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Contingent capital support agreement amount
Disposal Group, Contingent Capital Support Agreement, Amount
Amount relating to the capital maintenance agreement entered in connection with obtaining regulatory approval for the sale of substantially all of the disposal group. This amount is available on an as-needed basis to maintain specified surplus levels and is subject to immediate reimbursement by the counterparty.
Contingent capital support agreement contractual term
Disposal Group, Contingent Capital Support Agreement, Contractual Term
Contractual term relating to the capital maintenance agreement entered in connection with obtaining regulatory approval for the sale of substantially all of the disposal group.
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest [Member]
Accumulated Net Investment Gain (Loss) Attributable to Noncontrolling Interest
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Noncontrolling Interest [Member]
Accumulated Net Investment Gain (Loss) Attributable to Parent
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member]
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest
Accumulated Foreign Currency Adjustment Attributable to Noncontrolling Interest [Member]
Accumulated Foreign Currency Adjustment Attributable to Parent
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest
Accumulated Defined Benefit Plans Adjustment Attributable to Noncontrolling Interest [Member]
Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
AOCI Including Portion Attributable to Noncontrolling Interest
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Noncontrolling Interest
AOCI Attributable to Noncontrolling Interest [Member]
AOCI Attributable to Parent
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, Pretax
Other Comprehensive Income (Loss), before Reclassifications, before Tax
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, tax
Other Comprehensive Income (Loss) before Reclassifications, Tax
Other comprehensive income (loss), unrealized holding gains on securities arising during the period, net of tax
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax
Reclassification from accumulated other comprehensive income, pretax
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax
Reclassification from accumulated other comprehensive income, tax
Reclassification from AOCI, Current Period, Tax
Reclassification from accumulated other comprehensive income, net of tax
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax
Accumulated Other Comprehensive Income [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI beginning balance
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income (loss), pretax
Other Comprehensive Income (Loss), before Tax
Other comprehensive income (loss), tax
Other Comprehensive Income (Loss), Tax
AOCI ending balance
Reconciliation of income taxes at the statutory rate and income taxes shown in the Statement of Earnings
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Beginning Balance
Reinsurance Recoverable, Allowance for Credit Loss
Impact of adoption of new accounting principles
Provision (credit) for expected credit losses
Reinsurance Recoverable, Credit Loss Expense (Reversal)
Write-offs charged against the allowance
Reinsurance, Loss on Uncollectible Accounts in Period, Amount
Ending Balance
Not Designated as Hedging Instrument
Not Designated as Hedging Instrument [Member]
MBS with embedded derivatives
Mortgage Backed Securities with Embedded Derivatives [Member]
Mortgage backed securities with embedded derivatives.
Public company warrants
Warrant [Member]
Fixed-indexed and variable-indexed annuities (embedded derivative)
Fixed-Indexed and Variable-Indexed Annuities (Embedded Derivatives) [Member]
Derivatives embedded in fixed-indexed and variable-indexed annuity products
Equity index call options
Call Option [Member]
Equity index put options
Put Option [Member]
Reinsurance contracts (embedded derivative)
Other Contract [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Realized gains (losses) on securities
Realized Gains (Losses) On Securities [Member]
Primary financial statement caption encompassing realized gains (losses) on securities.
Annuity benefits
Annuity benefits [Member]
Primary financial statement caption encompassing annuity benefits expense.
Net investment income
Investment Income [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative
Derivative, Gain (Loss) on Derivative, Net
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles
Goodwill and Intangible Assets Disclosure [Text Block]
Deferred Policy Acquisition Costs Details
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits Details [Table Text Block]
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits Details [Table Text Block]
Assets:
Assets [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Investments:
Investments [Abstract]
Fixed maturities, available for sale at fair value (amortized cost — $46,101 and $44,524; allowance for expected credit losses of $61 at March 31, 2020)
Fixed maturities, trading at fair value
Debt Securities, Trading
Equity securities, at fair value
Equity Securities, FV-NI
Investments accounted for using the equity method
Equity Method Investments
Mortgage loans
Mortgage Loans on Real Estate, Commercial and Consumer, Net
Policy loans
Loans, Gross, Insurance Policy
Equity index call options
Derivative Asset
Real estate and other investments
Other Investments
Total cash and investments
Investments and Cash
Recoverables from reinsurers
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
Prepaid reinsurance premiums
Prepaid Reinsurance Premiums
Agents’ balances and premiums receivable
Premiums Receivable, Net
Deferred policy acquisition costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Assets of managed investment entities
Assets
Other receivables
Other Receivables
Variable annuity assets (separate accounts)
Separate Account Asset
Other assets
Other Assets
Goodwill
Goodwill
Total assets
Liabilities and Equity:
Liabilities and Equity [Abstract]
Unpaid losses and loss adjustment expenses
Liability for Claims and Claims Adjustment Expense, Property Casualty Liability
Unearned premiums
Unearned Premiums
Annuity benefits accumulated
Liability for Future Policy Benefits, Individual and Group Annuities and Supplementary Contracts
Life, accident and health reserves
Liability For Life, Accident and Health Reserves
The sum of the known and estimated amounts payable as of the balance sheet date to traditional life insurance policyholders, and under disability and accident insurance contracts, that relate to insured events which can be viewed as either (a) the present value of future benefits to be paid to or on behalf of policyholders and expenses less the present value of future net premiums payable under the insurance contracts or (b) the accumulated amount of net premiums already collected less the accumulated amount of benefits and expenses already paid to or on behalf of policyholders. This sum also includes amounts payable to universal life insurance policyholders for which the liability is equal to the account value.
Payable to reinsurers
Reinsurance Payable
Liabilities of managed investment entities
Liabilities
Long-term debt
Long-term Debt
Variable annuity liabilities (separate accounts)
Separate Account, Liability
Other liabilities
Other Liabilities
Total liabilities
Temporary equity
Temporary Equity [Abstract]
Redeemable noncontrolling interests
Redeemable Noncontrolling Interest, Equity, Carrying Amount
Shareholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Common Stock, no par value — 200,000,000 shares authorized — 89,827,336 and 90,303,686 shares outstanding
Common Stock, Value, Issued
Capital surplus
Additional Paid in Capital, Common Stock
Retained earnings
Retained Earnings, Unappropriated
Accumulated other comprehensive income, net of tax
Total shareholders’ equity
Stockholders' Equity Attributable to Parent
Noncontrolling interests
Stockholders' Equity Attributable to Noncontrolling Interest
Total equity
Total liabilities and equity
Liabilities and Equity
Segments of Operations
Segment Reporting Disclosure [Text Block]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Annuity benefits accumulated
Annuity Benefits Accumulated [Member]
Annuity benefits accumulated.
Derivatives, Fair Value [Line Items]
Derivatives, Fair Value [Line Items]
Derivatives included in AFG' s Balance Sheet at fair value
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Derivative asset, at fair value
Derivative Asset, Fair Value, Amount Not Offset Against Collateral
Derivative liability, at fair value
Derivative Liability, Fair Value, Amount Not Offset Against Collateral
U.S. Government and government agencies
States, municipalities and political subdivisions
Foreign government
Debt Security, Government, Non-US [Member]
Commercial MBS
Other asset-backed securities
Corporate and other
Available for sale securities in a continuous unrealized loss position
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Unrealized Loss - Less than twelve months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Fair Value - Less than twelve months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Fair Value as % of Cost - Less than twelve months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less Than Twelve Months, Fair Value As Percentage Of Cost
Available for sale securities continuous unrealized loss position less than twelve months fair value as percentage of cost.
Unrealized Loss - Twelve months or more
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Fair Value - Twelve months or more
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Fair Value as % of Cost - Twelve months or more
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months Or Longer, Fair Value As Percentage Of Cost
Available for sale securities continuous unrealized loss position twelve months or longer fair value as percentage of cost.
Long-Term Debt
Long-term Debt [Text Block]
Shareholders' Equity
Stockholders' Equity Note Disclosure [Text Block]
Schedule of Investment Income, Reported Amounts, by Category [Table]
Investment Income [Table]
Dividends [Axis]
Dividends [Axis]
Dividends [Domain]
Dividends [Domain]
Investment income
Equity in earnings of partnerships and similar investments
Equity Method Investments [Member]
Other
Other Long-term Investments [Member]
Net Investment Income [Line Items]
Net Investment Income [Line Items]
Investment expenses
Investment Income, Investment Expense
Net investment income (b)
Holding Gains (Losses) on Equity Securities Still Held [Table]
Holding Gains (Losses) on Equity Securities Still Held [Table]
Tabular disclosure of holding gains (losses) on equity securities still held
Equity Securities [Axis]
Equity Securities [Axis]
Equity Securities [Axis]
Equity Securities [Domain]
Equity Securities [Domain]
[Domain] for Equity Securities [Axis]
Equity securities still owned
Equity Securities Still Owned [Member]
Equity securities still owned at the balance sheet date.
Realized gains (losses) on securities
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
Holding Gains (Losses) on Equity Securities Still Held [Line Items]
holding gains (losses) on equity securities still held
Realized gains (losses) on securities still owned
Included in net investment income
Net holding gains (losses) on equity securities
Net Holding Gains (Losses) On Equity Securities
Net holding gains (losses) on equity securities in net earnings on securities that were still owned. All equity securities other than those accounted for under the equity method are carried at fair value through net earnings.
Specialty Property and transportation
Specialty Property And Transportation Insurance [Member]
Specialty Property and transportation.
Specialty casualty
Specialty Casualty Insurance [Member]
Specialty casualty.
Specialty financial
Specialty Financial Insurance [Member]
Specialty Financial.
Other specialty
Specialty Other Insurance [Member]
Specialty Other Insurance.
Business Segments [Axis]
Annuity
Annuity [Member]
Annuity Operations.
Other
Corporate and Other [Member]
Earnings before realized gains (losses) and income taxes
Operating Income (Loss), Before Realized Gains (Losses) and Income Taxes
The net result for the period of deducting operating expenses from operating revenues (excluding realized gains (losses) on securities and subsidiaries) before income taxes.
Earnings (loss) before income taxes
Operating Income (Loss)
Debt Securities, Available-for-sale, Allowance for Credit Loss [Table]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Table]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Allowance for Credit Losses [Roll Forward]
Debt Securities, Available-for-sale, Allowance for Credit Loss [Roll Forward]
Beginning balance
Impact of adoption of new accounting policy
Provision for expected credit losses
Reductions due to sales or redemptions
Debt Securities, Available-for-sale, Allowance for Credit Loss, Securities Sold
Ending balance
Changes in the goodwill balance during the period
Goodwill, Period Increase (Decrease)
Amortizable intangible assets related to property and casualty insurance acquisitions
Finite-Lived Intangible Assets, Net
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Amortization of intangible assets
Amortization of Intangible Assets
Gross realized gains and losses on the sale of available for sale fixed maturity and equity security investments
Debt Securities, Available-for-sale, Realized Gain (Loss) [Abstract]
Gross gains
Available-for-sale Securities, Gross Realized Gains
Gross losses
Available-for-sale Securities, Gross Realized Losses
Cash dividends per Common Share (USD per share)
Common Stock, Dividends, Per Share, Declared
The scheduled maturities of available for sale fixed maturities
Available-for-sale Securities, Debt Maturities [Abstract]
Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract]
One year or less
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost
After one year through five years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Amortized Cost
After five years through ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Amortized Cost
After ten years
Debt Securities, Available-for-sale, Allocated and Single Maturity Date, Maturity, after 10 Years, Amortized Cost
Fixed maturities amortized cost, Subtotal
Available-for-sale Securities, Debt Maturities Excluding ABS and MBS, Amortized Cost
Available for sale securities debt maturities excluding ABS and MBS amortized cost.
Collateralized loan obligations and other ABS (average life of approximately 4-1/2 years)
Collateralized Loan Obligations and Other Available for Sale Securities ABS Amortized Cost
Collateralized loan obligations and Other asset-backed securities, amortized cost.
MBS (average life of approximately 3-1/2 years)
Available for Sale Securities MBS Amortized Cost
Mortgage-backed securities, amortized cost.
Amortized Cost
Available-for-sale Securities, Amortized Cost Basis
Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
One year or less
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value
After one year through five years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after One Through Five Years, Fair Value
After five years through ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after Five Through Ten Years, Fair Value
After ten years
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, after 10 Years, Fair Value
Fixed maturities fair value, Subtotal
Available-for-sale Securities, Debt Maturities Excluding ABS and MBS, Fair Value
Available for sale securities debt maturities excluding ABS and MBS fair value.
Collateralized loan obligations and other ABS (average life of approximately 4-1/2 years)
Collateralized Loan Obligations and Other Available for Sale Securities ABS Fair Value
Collateralized loan obligations and other Asset-backed securities, fair value.
MBS (average life of approximately 3-1/2 years)
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure
Fair Value
Available-for-sale Securities
Fair Value Percent, Fiscal Year Maturity [Abstract]
Available For Sale Securities, Debt Maturities, Fair Value Percent, Fiscal Year Maturity [Abstract]
Available For Sale Securities, Debt Maturities, Fair Value Percent, Fiscal Year Maturity [Abstract]
One year or less
Available For Sale Securities Debt Maturities Within One Year Fair Value Percent
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value, Percent.
After one year through five years
Available For Sale Securities Debt Maturities After One Through Five Years Fair Value Percent
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value, Percent.
After five years through ten years
Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value Percent
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value, Percent.
After ten years
Available For Sale Securities Debt Maturities After Ten Years Fair Value Percent
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value, Percent.
Fixed maturities fair value, Subtotal, Percent
Available-for-sale Securities, Debt Maturities Excluding ABS and MBS, Fair Value, Percent
Available for sale securities debt maturities excluding ABS and MBS fair value percent.
Collateralized loan obligations and other ABS (average life of approximately 4-1/2 years)
Collateralized Loan Obligations and Other Available for Sale Securities ABS Fair Value Percent
Collateralized loan obligations and other Asset-backed securities, fair value, percent.
MBS (average life of approximately 3-1/2 years)
Available for Sale Securities MBS Fair Value Percent
Mortgage-backed securities, fair value, percent.
Fair value, Total, Percent
Available For Sale Securities Debt Maturities Fair Value Percent
Available-for-sale Securities, Debt Maturities, Fair Value, Total, Percent.
Average life of ABS
Collateralized Loan Obligations and Other Asset-Backed Securities Average Useful Life
Collateralized loan obligations and Other asset-backed securities average useful life.
Average life of MBS
Mortgage Backed Securities Average Useful Life
Mortgage backed securities average useful life.
Schedule of long-term debt instruments
Schedule of Long-term Debt Instruments [Table Text Block]
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Measurement Input Type [Axis]
Measurement Input Type [Axis]
Measurement Input Type [Domain]
Measurement Input Type [Domain]
Credit spread used in pricing model
Measurement Input, Credit Spread [Member]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Axis]
Valuation Approach and Technique [Domain]
Valuation Approach and Technique [Domain]
Third party pricing model
Third Party Pricing Model [Member]
Third party Pricing Model used to derive the fair value by taking management’s best estimate of an appropriate credit spread over the treasury yield (of a similar duration) to discount future expected cash flows.
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Level 1
Fair Value, Inputs, Level 1 [Member]
Level 2
Fair Value, Inputs, Level 2 [Member]
Level 3
Fair Value, Inputs, Level 3 [Member]
Fixed-indexed and variable-indexed annuities (embedded derivative), majority of future years
Fixed-Indexed and Variable-Indexed Annuities (Embedded Derivative), Majority of Future Years [Member]
Derivatives embedded in fixed-indexed and variable-indexed annuities, majority of future years
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
AFG's internal investment professionals
Number Of Internal Investment Professionals
Number of internal investment professionals.
Level 3 assets as a percentage of total assets measured at fair value
Level Three Asset As Percentage Of Asset Measured At Fair Value
Level Three Asset As Percentage Of Asset Measured At Fair Value.
Percentage of level 3 assets that were priced using non-binding broker quotes
Percentage Of Level Three Assets That Were Priced Using Non-Binding Broker Quotes
Percentage of level 3 assets that were priced using non-binding broker quotes.
Level 3 assets that were priced using non-binding broker quotes
Level Three Assets That Were Priced Using Non Binding Broker Quotes
Level three assets that were priced using non-binding broker quotes.
Internally developed level 3 assets
Internally Developed Level 3 Assets
Level 3 assets in which the fair value was developed internally.
Securities priced using a third-party model
Securities Priced Using Third-Party Model
Number of securities priced using a third-party model.
Basis points credit spread applied by management using third party model
Debt Securities, Available-for-sale, Measurement Input
Percent of spreads between 200 and 700 basis points
Percent of Spreads Used in Third-Party Pricing Model
Percent of spreads between 400 and 700 basis points used in the third party pricing model.
Fair value of derivatives in annuity benefits accumulated measured using a discounted cash flow approach
Derivative Liability
Unobservable input surrenders used in Level 3 fair value determination
Fair Value Inputs Surrenders
Risk associated with risk of surrenders, expressed as a percentage, used as an input to measure fair value.
Life contingent annuities
Life Contingent Annuities
Financial liabilities on annuities in the payout phase that are contingent on the survival of the annuitant(s).
Statutory rate of income taxes
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Operating loss carryforwards subject to SRLY tax rules will expire unutilized at December 31, 2020
Operating Loss Carryforwards
Income Statement [Abstract]
Revenues:
Revenues [Abstract]
Property and casualty insurance net earned premiums
Net investment income
Income (loss) of managed investment entities:
Income (Loss) of Managed Investment Entities [Abstract]
Income (loss) of managed investment entities.
Investment income
Investment Income of Managed Investment Entities
Investment income of managed investment entities.
Gain (loss) on change in fair value of assets/liabilities
Gain (Loss) on Change in Fair Value of Assets and Liabilities of Managed Investment Entities
Loss on change in fair value of assets and liabilities of managed investment entities.
Other income
Other Income
Total revenues
Revenues
Costs and Expenses:
Benefits, Losses and Expenses [Abstract]
Losses and loss adjustment expenses
Policyholder Benefits and Claims Incurred, Net, Property, Casualty and Liability
Commissions and other underwriting expenses
Property and Casualty Commissions and Other Underwriting Expenses
Property and casualty commissions and other underwriting expenses.
Annuity benefits
Annuity Benefits
Annuity benefits includes 1) interest credited to policyholders accounts, which provides a guaranteed yield, 2) expenses related to excess benefits expected to be paid on future deaths and annuitizations and 3) net expenses related to changes in embedded derivatives on equity indexed annuities offset by equity index call options.
Annuity and supplemental insurance acquisition expenses
Annuity and Supplemental Insurance Acquisition Expenses
Annuity and supplemental insurance acquisition expenses.
Interest charges on borrowed money
Interest Expense
Expenses of managed investment entities
Expenses of Managed Investment Entities
Expenses of managed investment entities.
Other expenses
Other Cost and Expense, Operating
Total costs and expenses
Benefits, Losses and Expenses
Provision (credit) for income taxes
Income Tax Expense (Benefit)
Net earnings (loss), including noncontrolling interests
Less: Net earnings (loss) attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net Earnings (Loss) Attributable to Shareholders
Earnings (Loss) Attributable to Shareholders per Common Share:
Earnings Per Share [Abstract]
Basic (USD per share)
Earnings Per Share, Basic
Diluted (USD per share)
Earnings Per Share, Diluted
Average number of Common Shares:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic (shares)
Weighted Average Number of Shares Outstanding, Basic
Diluted (shares)
Weighted Average Number of Shares Outstanding, Diluted
Supplemental disclosure of Realized gains on securities:
Debt and Equity Securities, Realized Gain (Loss) [Abstract]
Realized gains (losses) before impairments
Losses on securities with impairment
Other than Temporary Impairment Losses, Investments
Non-credit portion recognized in other comprehensive income (loss)
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, before Tax, Including Portion Attributable to Noncontrolling Interest
Impairment charges recognized in earnings
Other-than-temporary Impairment Loss, Debt Securities, Portion Recognized in Earnings
Total realized gains (losses) on securities
Investment in CLO tranches at end of period
Selected financial information related to collateralized loan obligations
Financial Information Related to Collateralized Loan Obligations [Abstract]
Financial information related to collateralized loan obligations.
Gains (losses) on change in fair value of assets/liabilities:
Gains (Losses) on Change in Fair Value of Assets/ Liabilities of Collateralized Loan Obligations [Abstract]
Gains losses on change in fair value of assets liabilities collateralized loan obligations.
Assets
Gain (Loss) on Change in Fair Value of Assets of Variable Interest Entities
Gain (loss) on change in fair value of assets of variable interest entities.
Liabilities
Gain (Loss) on Change in Fair Value of Liabilities of Variable Interest Entities
Gain (loss) on change in fair value of liabilities of variable interest entities.
Management fees paid to AFG
Management Fees Paid by Variable Interest Entities
Management fees paid by variable interest entities.
CLO earnings (losses) attributable to AFG shareholders
Earnings Losses Of Variable Interest Entities Attributable To Shareholders
Earnings (losses) of variable interest entities attributable to AFG shareholders.
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Atlas Financial Holdings - Paratransit Business
Atlas Financial Holdings - Paratransit Business [Member]
Atlas Financial Holdings - Paratransit Business
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Gross written premiums eligible for renewal
Gross Written Premiums Eligible for Renewal
Gross written premiums eligible for renewal under the agreement
Business acquisition, price as a percent of gross written premiums
Business Acquisition, Price as a Percent of Gross Written Premiums
The price paid for a business acquisition as a percent of gross written premiums
Warrant term to acquire shares
Warrants and Rights Outstanding, Term
Number of shares able to be acquired with the warrant
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right
Business acquisition, percentage of entity acquired by warrants
Class of Warrant or Right, Percent of Entity Acquired by Warrant or Right
The percent of ownership of an entity that is acquirable through a warrant or right
Fair value of warrant on date received
Accumulated amortization of present value of future profits
Accumulated Amortization of Present Value of Future Profits
The cumulative amount of amortization of present value of future profits that has been recognized in the Income Statement.
Balance Sheet Impact of Net Unrealized Gains on Securities [Axis]
Balance Sheet Impact of Net Unrealized Gains on Securities [Axis]
Balance Sheet Impact of Net Unrealized Gains on Securities.
Balance Sheet Impact of Net Unrealized Gains on Securities [Domain]
Balance Sheet Impact of Net Unrealized Gains on Securities [Domain]
[Domain] for Balance Sheet Impact of Net Unrealized Gains on Securities.
Excluding Unrealized Gains
Excluding Unrealized Gains [Member]
Excluding Unrealized Gains.
P&C
Annuity and Other
Annuity, Long-term Care and Life [Member]
Annuity, long-term care and life.
Summary of deferred policy acquisition costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract]
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward]
Deferred policy acquisition costs, beginning balance
Deferred Policy Acquisition Cost
Deferred policy acquisition costs, additions
Deferred Policy Acquisition Cost, Capitalization
Deferred policy acquisition costs, periodic amortization
Deferred Policy Acquisition Cost, Amortization Expense, Other
Deferred policy acquisition costs, change included in realized gains
Deferred Policy Acquisition Cost, Amortization Expense, Net Investment Gains (Losses)
Deferred policy acquisition costs, foreign currency translation
Deferred Policy Acquisition Cost, Foreign Currency Translation Adjustment and Other
Deferred policy acquisition costs, ending balance
Movement in Deferred Sales Inducements [Roll Forward]
Movement in Deferred Sales Inducements [Roll Forward]
Deferred sales inducements, beginning balance
Deferred Sale Inducement Cost
Deferred sales inducements, additions
Deferred Sale Inducement Cost, Capitalization
Deferred sales inducements, periodic amortization
Deferred Sales Inducement Cost, Amortization Expense
Deferred sales inducements, change included in realized gains
Deferred Sales Inducements, Amortization Expense, Net Investment Gains (Losses)
The amount of amortization of deferred sales inducement costs due to realized investment gains or losses.
Deferred sales inducements, ending balance
Movement in Present Value of Future Insurance Profits [Roll Forward]
Movement in Present Value of Future Insurance Profits [Roll Forward]
Present value of future profits, beginning balance
Present Value of Future Insurance Profits, Net
Present value of future profits, periodic amortization
Present Value of Future Insurance Profits, Amortization Expense
Present value of future profits, ending balance
Movement in Unrealized Gains (Losses) Related to Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Movement in Unrealized Related to Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Movement in Unrealized Related to Deferred Policy Acquisition Costs and Present Value of Future Profits [Roll Forward]
Unrealized investment gains (losses), beginning balance
Deferred Policy Acquisition Costs and Value of Business Acquired, Unrealized Investment Gain (Loss)
The impact of the amount of increase (decrease) in unrealized investment gains and losses on deferred policy acquisition cost (DAC) and value of business acquired.
Unrealized investment gains (losses), change in unrealized
Deferred Policy Acquisition Costs and Value of Business Acquired, Unrealized Investment Gain (Loss), Change in Unrealized
Amount of increase (decrease) in deferred policy acquisition cost (DAC) and present value of future profits due to unrealized investment gain (loss).
Unrealized investment gains (losses), ending balance
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]
Deferred policy acquisition costs and present value of future profits, beginning balance
Deferred policy acquisition costs and present value of future profits, additions
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Addition
Deferred policy acquisition costs and present value of future profits, periodic amortization
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization
Deferred policy acquisition costs and present value of future profits, change included in realized gains
Deferred Policy Acquisition Costs and Present Value of Future Profits, Amortization Expense, Net Investment Gains (Losses)
Amount of amortization of deferred policy acquisition costs and present value of future profits due to realized investment gains or losses.
Deferred policy acquisition costs and present value of future profits, foreign currency translation
Deferred Policy Acquisition Costs And Present Value Of Future Profits, Foreign Currency Translation Adjustment
Amount of increase (decrease) in deferred policy acquisition cost (DAC) and present value of future profits due to the effect of foreign currency translation.
Deferred policy acquisition costs and present value of future profits, change in unrealized
Deferred Policy Acquisition Costs and Present Value of Future Profits, Change in Unrealized Investment Gain (Loss)
Adjustment to deferred policy acquisition cost (DAC) and present value of future profits due to unrealized investment gain (loss).
Deferred policy acquisition costs and present value of future profits, ending balance
Fair Value Measurement Inputs and Valuation Techniques [Table]
Fair Value Measurement Inputs and Valuation Techniques [Table]
Embedded derivatives
Embedded Derivative Financial Instruments [Member]
Fair Value, Option, Quantitative Information [Line Items]
Fair Value, Option, Quantitative Disclosures [Line Items]
Unobservable inputs used by management in determining fair value of embedded derivatives
Unobservable Inputs Used In Determining Fair Value Of Embedded Derivatives [Abstract]
Unobservable inputs used in determining fair value of embedded derivatives.
Risk margin for uncertainty in cash flows
Fair Value Inputs Risk Margin For Uncertainty In Cash Flows
Risk associated with risk margin for uncertainty in cash flows, expressed as a percentage, used as an input to measure fair value.
Adjustment for insurance subsidiary’s credit risk
Fair Value Input Adjustment for Insurance Subsidiary’s Credit Risk
Risk associated with risk of adjustment of an insurance subsidiary’s credit risk, expressed as a percentage, used as an input to measure fair value.
Surrenders
Partial surrenders
Fair Value Inputs Partial Surrenders
Risk associated with risk of partial surrenders, expressed as a percentage, used as an input to measure fair value.
Annuitizations
Fair Value Inputs Annuitizations
Risk associated with risk of annuitizations, expressed as a percentage, used as an input to measure fair value.
Deaths
Fair Value Inputs Deaths
Risk associated with risk of deaths, expressed as a percentage, used as an input to measure fair value.
Budgeted option costs
Fair Value Inputs Budgeted Option Costs
Risk associated with risk of budgeted option costs, expressed as a percentage, used as an input to measure fair value.
Derivatives included in Balance Sheet at fair value
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
Summary of gain (loss) included in the Statement of Earnings for changes in the fair value of derivatives
Derivative Instruments, Gain (Loss) [Table Text Block]
Equity index call options
Other Investments [Member]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Other liabilities — derivatives
Assets and liabilities measured at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Assets:
Assets, Fair Value Disclosure [Abstract]
Trading fixed maturities
Equity securities
Equity index call options
Assets of managed investment entities (“MIE”)
Assets of managed investment entities Fair value disclosure
Assets of managed investment entities Fair value disclosure.
Variable annuity assets (separate accounts)
Variable Annuity Assets, Fair Value Disclosure
Fair value portion of variable annuity assets held in separate accounts.
Total assets accounted for at fair value
Assets, Fair Value Disclosure
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Liabilities of managed investment entities
Liabilities of managed investment entities fair value Disclosure
Liabilities of managed investment entities fair value Disclosure.
Derivatives included in annuity benefits accumulated, long-term debt, and other liabilities
Total liabilities accounted for at fair value
Financial and Nonfinancial Liabilities, Fair Value Disclosure
Cover [Abstract]
Entities [Table]
Entities [Table]
Common stocks
Entity Information [Line Items]
Entity Information [Line Items]
Document Type
Document Type
Document Quarterly Report
Document Quarterly Report
Document Period End Date
Document Period End Date
Document Transition Report
Document Transition Report
Entity File Number
Entity File Number
Entity Registrant Name
Entity Registrant Name
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Entity Tax Identification Number
Entity Tax Identification Number
Entity Central Index Key
Entity Central Index Key
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, City or Town
Entity Address, City or Town
Entity Address, State or Province
Entity Address, State or Province
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Amendment Flag
Amendment Flag
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Entity Small Business
Entity Small Business
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Shell Company
Entity Shell Company
Title of 12(b) Security
Title of 12(b) Security
Trading Symbol
Trading Symbol
Security Exchange Name
Security Exchange Name
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Liability for losses and loss adjustment expenses [Table]
Liability for Claims and Claims Adjustment Expense [Table]
Insurance Product Line [Axis]
Product and Service [Axis]
Insurance Product Line [Domain]
Product and Service [Domain]
Liability for losses and loss adjustment expenses [Line Items]
Liability for Claims and Claims Adjustment Expense [Line Items]
Insurance Loss Reserves [Abstract]
Insurance Loss Reserves [Abstract]
Analysis of changes in the liability for losses and loss adjustment expenses, net of reinsurance
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance at beginning of year
Less reinsurance recoverables, net of allowance
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
Net liability at beginning of year
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Liability for losses and loss adjustment expenses, period increase (decrease) [Abstract]
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease) [Abstract]
Provision for losses and LAE occurring in the current period
Current Year Claims and Claims Adjustment Expense
Net increase (decrease) in the provision for claims of prior years
Prior Year Claims and Claims Adjustment Expense
Total losses and LAE incurred ()
Payments for losses and LAE of:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Current year
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Prior years
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Total payments
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Foreign currency translation and other
Liability for Unpaid Claims and Claims Adjustment Expense, Foreign Currency Translation Gain (Loss)
Net liability at end of period
Add back reinsurance recoverables, net of allowance
Gross unpaid losses and LAE included in the balance sheet at end of period
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Carrying Value
Reported Value Measurement [Member]
Fair Value
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value and fair value of financial instruments that are not carried at fair value
Financial Instruments Financial Assets And Liabilities Balance Sheet Groupings [Abstract]
Financial instruments financial assets and liabilities balance sheet groupings.
Financial assets:
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Cash and cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
Total financial assets not accounted for at fair value
Financial Assets Not Accounted For At Fair Value
Total financial assets not accounted for at fair value.
Financial liabilities:
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Annuity benefits accumulated
Annuity Benefits Accumulated Excluding Life Contingent Annuities
Annuity Benefits Accumulated Excluding Life Contingent Annuities.
Total financial liabilities not accounted for at fair value
Financial Liabilities Not Accounted For At Fair Value
Total financial liabilities not accounted for at fair value.
Fixed maturities, Available for sale, Amortized Cost
Fixed maturities, Available for Sale, Allowance for Expected Credit Losses
Fixed maturities, Available for sale, Gross Unrealized, Gains
Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax
Fixed maturities, Available for sale, Gross Unrealized, Losses
Fixed maturities, Available for sale, Net Unrealized, Gains (Losses)
Available-for-sale Debt Securities, Accumulated Net Unrealized Gain (Loss), before Tax
Amount before tax of net unrealized gain (loss) in accumulated other comprehensive income (AOCI) on investments in debt securities classified as available-for-sale.
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Perpetual preferred stocks
Preferred Stock [Member]
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI [Line Items]
Equity securities, at cost
Equity Securities, FV-NI, Cost
Equity securities, fair value in excess of cost
Equity Securities, FV-NI, Fair Value in Excess of Cost
Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI) in excess of the cost of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). Excludes equity method investment and investment in equity security without readily determinable fair value.
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Earnings (loss) before income taxes (“EBT”)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
Income taxes at statutory rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Effect of stock-based compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Amount
Effect of tax exempt interest
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Effect of dividends received deduction
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Effect of nondeductible expenses
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount
Effect of change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Effect of foreign operations
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Effect of other income tax reconciliation
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Provision for income taxes as shown on the Statement of Earnings
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Income taxes at statutory rate as a percentage of EBT
Effect of stock-based compensation as a percentage of EBT
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-based Payment Arrangement, Percent
Effect of tax exempt interest as a percentage of EBT
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
Effect of dividends received deduction as a percentage of EBT
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent
Effect of nondeductible expenses as a percentage of EBT
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Effect of change in valuation allowance as a percentage of EBT
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Effect of foreign operations as a percentage of EBT
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Effect of other income tax reconciliation as a percentage of EBT
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Provision for income taxes as shown on the Statement of Earnings as a percentage of EBT
Effective Income Tax Rate Reconciliation, Percent
Reconciliation of beginning and ending liability for unpaid losses and loss adjustment expenses
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Reinsurance Recoverable and Premiums Receivable, Allowance for Credit Loss
Reinsurance Recoverable and Premiums Receivable, Allowance for Credit Loss [Table Text Block]
Tabular disclosure of allowance for credit loss on reinsurance recoverable and premiums receivable.
Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Basis of Presentation
Basis of Accounting [Text Block]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
Credit Losses on Financial Instruments
Credit Loss, Financial Instrument [Policy Text Block]
Investments
Investment, Policy [Policy Text Block]
Derivatives
Derivatives, Policy [Policy Text Block]
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Reinsurance
Reinsurance Accounting Policy [Policy Text Block]
Deferred Policy Acquisition Costs (“DPAC”)
Deferred Policy Acquisition Costs, Policy [Policy Text Block]
Managed Investment Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Unpaid Losses and Loss Adjustment Expenses
Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block]
Annuity Benefits Accumulated
Annuity Benefits Accumulated [Policy Text Block]
Describes an accounting policy related to an insurance entity's liability for future annuity benefits to be paid to or on behalf of annuity policyholders.
Unearned Revenue
Revenue Recognition, Deferred Revenue [Policy Text Block]
Life, Accident and Health Reserves
Life, Accident and Health Reserves [Policy Text Block]
Describes an accounting policy related to an insurance entity's liability for future life, accident and health benefits to be paid to or on behalf of policyholders.
Debt Issuance Costs
Debt, Policy [Policy Text Block]
Variable Annuity Assets and Liabilities
Policyholder Accounts, Policy [Policy Text Block]
Leases
Lessee, Leases [Policy Text Block]
Noncontrolling Interests
Noncontrolling Interests [Policy Text Block]
Describes an entity's accounting policy for determining noncontrolling interests.
Premium Recognition
Insurance Premiums Revenue Recognition, Policy [Policy Text Block]
Income Taxes
Income Tax, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Payment Arrangement [Policy Text Block]
Benefit Plans
Postretirement and Postemployment Benefit Plans [Policy Text Block]
Disclosure of the accounting policy for postretirement and postemployment benefit plans sponsored by the entity.
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Statement of Cash Flows
Statement of Cash Flows [Policy Text Block]
Describes an entity's accounting policy related to the statement of cash flows.
Segments of Operations
Segment Reporting, Policy [Policy Text Block]
Net Unrealized Gain on Marketable Securities
Marketable Securities, Policy [Policy Text Block]
Accumulated Other Comprehensive Income, Net of Tax (“AOCI”)
Comprehensive Income, Policy [Policy Text Block]
Statement of Cash Flows [Abstract]
Operating Activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization
Depreciation, Amortization and Accretion, Net
Realized (gains) losses on investing activities
Realized Investment Gains (Losses)
Net sales of trading securities
Proceeds from (Payments for) Trading Securities, Short-term
Deferred annuity and life policy acquisition costs
Deferred Annuity and Life Policy Acquisition Costs
Annuity and Life additions during the period in (a) capitalized costs that vary with and are primarily related to the acquisition of new and renewal insurance contracts and coverage, and (b) capitalized present value of future profits (also known as value of business acquired).
Change in:
Increase (Decrease) in Operating Capital [Abstract]
Reinsurance and other receivables
Increase (Decrease) in Reinsurance and Other Receivables
Increase (Decrease) in reinsurance, agent's balances and premiums receivable and other receivables.
Other assets
Increase (Decrease) in Other Operating Assets
Insurance claims and reserves
Increase (Decrease) in Insurance Claims and Reserves
The net change in the beginning and end of the period for unpaid losses and loss adjustment expenses, unearned premiums, and life, accident and health reserves needed to adjust net income to arrive at net cash flows provided by (used in) operating activities.
Payable to reinsurers
Increase (Decrease) in Reinsurance Payables
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Managed investment entities’ assets/liabilities
Change in Managed Investment Entities Assets And Liabilities
The increase (decrease) during the reporting period in other operating assets and liabilities of managed investment entities.
Other operating activities, net
Other Operating Activities, Cash Flow Statement
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Investing Activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Purchases of fixed maturities
Payments to Acquire Debt Securities, Available-for-sale
Purchases of equity securities
Payments to Acquire Available-for-sale Securities, Equity
Purchases of mortgage loans
Payments to Acquire Mortgage Notes Receivable
Purchases of equity index call options and other investments
Payments to Acquire Other Investments
Purchases of real estate, property and equipment
Purchases of Real Estate, Property and Equipment
The cash outflow associated with the purchase of real estate held for investment purposes and cash flows associated with the acquisition of long-lived, physical assets that are used in the normal course of business.
Proceeds from maturities and redemptions of fixed maturities
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale
Proceeds from repayments of mortgage loans
Proceeds from Sale and Collection of Mortgage Notes Receivable
Proceeds from sales of fixed maturities
Proceeds from Sale of Debt Securities, Available-for-sale
Proceeds from sales of equity securities
Proceeds from Sale of Available-for-sale Securities, Equity
Proceeds from sales and settlements of equity index call options and other investments
Proceeds from Sale and Maturity of Other Investments
Proceeds from sales of real estate, property and equipment
Proceeds From Sales Of Real Estate Property and Equipment
The cash inflow associated with the sale of real estate, property and equipment.
Managed investment entities:
Managed Investments Entities [Abstract]
Managed investments entities.
Purchases of investments
Purchases of Investments by Managed Investment Entities
The cash outflow from the purchase of investments by managed investment entities.
Proceeds from sales and redemptions of investments
Proceeds from Sales and Redemptions of Investments by Managed Investment Entities
The cash inflow associated with sales, maturities, prepayments and redemptions of investments by managed investment entities.
Other investing activities, net
Payments for (Proceeds from) Other Investing Activities
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Financing Activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Annuity receipts
Proceeds from Annuities and Investment Certificates
Annuity surrenders, benefits and withdrawals
Repayments of Annuities and Investment Certificates
Net transfers from variable annuity assets
Net Transfers From To Separate Accounts
Net transfers from (to) separate accounts related to variable annuity assets.
Additional long-term borrowings
Proceeds from Issuance of Long-term Debt
Retirements of managed investment entities’ liabilities
Retirement Of Managed Investment Entities Liabilities
Retirement of managed investment entities' liabilities.
Issuances of Common Stock
Proceeds from Issuance of Common Stock
Repurchases of Common Stock
Payments for Repurchase of Common Stock
Cash dividends paid on Common Stock
Payments of Ordinary Dividends, Common Stock
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Net Change in Cash and Cash Equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Accounting Policies
Significant Accounting Policies [Text Block]
Acquisition of Business
Business Combination Disclosure [Text Block]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Financial liabilities, Beginning Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Total realized/unrealized gains (losses) included in Net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Total realized/unrealized gains (losses) included in other comprehensive income (loss)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss)
Purchases and issuances
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances
Sales and settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Transfer into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3
Transfer out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3
Financial liabilities, Ending Balance
Other
Other Long-term Debt [Member]
Other Long-term Debt.
Summary of Carrying value of long-term debt
Summary Of Carrying Value Of Long Term Debt [Abstract]
Summary of Carrying value of long-term debt.
Principal
Long-term Debt, Gross
Discount and Issue Costs
Debt Issuance Costs, Net
Carrying Value
Revenues before realized gains (losses)
Revenues before Realized Gains (Losses)
Aggregate revenue (including insurance premiums, investment income and other income) recognized during the period before realized gains (losses) on securities and subsidiaries.