One year or less
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One
Real estate-related investments
Equity Method Investments, Real Estate-related Investments [Member]
Equity Method Investments, Real Estate-related Investments
Business Acquisition [Axis]
Business Acquisition [Axis]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent [Abstract]
Distributions
Proceeds Received From Distributions of Managed Investment Entities Liabilities
Proceeds received from distributions of managed investment entities liabilities.
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Variable interest entity, primary beneficiary
Variable Interest Entity, Primary Beneficiary [Member]
Principal
Long-Term Debt, Gross
Assets of businesses sold:
Disposal Group, Including Discontinued Operation, Assets [Abstract]
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Unrealized holding gains (losses) on pension and OPRP arising during the period, tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, Tax
Reductions due to sales or redemptions
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Securities Sold
Percentage of level 3 equity investments that do not qualify for equity accounting
Percentage of Level Three Assets, Equity Investments That Do Not Qualify for Equity Accounting
Percentage of Level three assets, equity investments that do not qualify for equity accounting
Annuity and supplemental insurance acquisition expenses
Disposal Group, Including Discontinued Operations, Annuity and Supplemental Insurance Acquisition Expenses
Annuity and supplemental insurance acquisition expenses of discontinued operations included in a disposal group
Scheduled principal payments on debt in year two
Long-Term Debt, Maturity, Year Two
Investments
Disposal Group, Including Discontinued Operations, Investments
Total investments of discontinued operations included in a disposal group
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]
Operating Loss Carry Forward Expired [Domain]
Operating Loss Carry Forward Expired [Domain]
Operating Loss Carry Forward Expired [Domain]
Annuity surrenders, benefits and withdrawals
Repayments of Annuities and Investment Certificates
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.
Debt Instrument [Axis]
Debt Instrument [Axis]
Cash dividends paid on Common Stock
Payments of Ordinary Dividends, Common Stock
Annuity benefits accumulated
Disposal Group, Including Discontinued Operations, Liability For Future Policy Benefits Individual And Group Annuities And Supplementary Contracts
Annuity benefits accumulated of discontinued operations included in a disposal group
Dividend reinvestment plan (shares)
Stock Issued During Period, Shares, Dividend Reinvestment Plan
Revolving credit line
Line of Credit Facility, Maximum Borrowing Capacity
Income Tax Disclosure [Abstract]
Income Tax Disclosure [Abstract]
Proceeds from:
Proceeds from Investing Activities [Abstract]
Costs and Expenses:
Benefits, Losses and Expenses [Abstract]
Fair Value Measurements
Fair Value of Financial Instruments, Policy [Policy Text Block]
After five years through ten years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Variable Interest Entity, Ownership [Roll Forward]
Variable Interest Entity, Ownership [Roll Forward]
Progression of the ownership of variable interest entities
Total revenues
Disposal Group, Including Discontinued Operation, Revenue
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.
Financial Instruments [Domain]
Financial Instruments [Domain]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Interest rate on revolving debt facility
Debt Instrument, Basis Spread on Variable Rate
Other investing activities, net
Payments for (Proceeds from) Other Investing Activities
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Exercise of stock options (shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Property and transportation
Specialty Property And Transportation Insurance [Member]
Specialty Property and transportation.
Interest rate on debt instruments
Debt Instrument, Interest Rate, Stated Percentage
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]
Effect of ESOP dividend paid deduction
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Amount
Realized gains (losses) on securities
Realized Gains (Losses) On Securities [Member]
Primary financial statement caption encompassing realized gains (losses) on securities.
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.
Private debt
Equity Method Investments, Private Debt Funds [Member]
Equity Method Investments, Private Debt Funds
Capital surplus
Additional Paid in Capital, Common Stock
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.
Net Earnings
Net earnings
Net Income (Loss) Attributable to Parent
Cash and cash equivalents
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents
After one year through five years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Anti-dilutive potential common shares related to stock-based compensation plans (shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Debt Securities
Debt Securities [Member]
Collateralized loan obligations and other ABS (average life of approximately 3.5 years)
Collateralized Loan Obligations and Other Available for Sale Securities ABS Fair Value
Collateralized loan obligations and other Asset-backed securities, fair value.
Net proceeds from sale of businesses
Disposal Group, Including Discontinued Operations, Proceeds from Divestiture of Businesses, Net of Expenses
The proceeds from divestiture of businesses classified as discontinued operations, net of expenses paid
Reclassification adjustment for realized (gains) losses included in net earnings
Reclassification adjustment for realized (gains) losses included in net earnings, after tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
Effect of other income tax reconciliation as a percentage of EBT
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Net investment income
Net investment income
Net investment income
Net Investment Income
Net cash provided by operating activities
Cash Provided by (Used in) Operating Activities, Discontinued Operations
Equity Component [Domain]
Equity Component [Domain]
Other
Discontinued Operation Tax Effect Of Income Loss From Disposal Of Discontinued Operation, Other
Other tax effects of income or loss from from the disposition of discontinued operations
Other Property
Other Property [Member]
Total income tax expense
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation
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]
Effect of change in valuation allowance
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Total assets accounted for at fair value
Assets, Fair Value Disclosure
Investment, Name [Domain]
Investment, Name [Domain]
Debt and Equity Securities, FV-NI [Line Items]
Debt and Equity Securities, FV-NI [Line Items]
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.
States, municipalities and political subdivisions
State and municipal
US States and Political Subdivisions Debt Securities [Member]
4.50% Subordinated Debentures due September 2060
Subordinated Debentures due in September 2060 [Member]
Subordinated Debentures due in September 2060
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective Income Tax Rate Reconciliation, Percent [Abstract]
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.
Fixed maturities, available for sale at fair value (amortized cost — $10,744 and $10,193; allowance for expected credit losses of $9 and $9)
Available for sale (AFS) fixed maturities
Fair Value
Debt Securities, Available-for-Sale
Hedging Designation [Domain]
Hedging Designation [Domain]
Liabilities of businesses sold:
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
Operating lease liability, current, Statement of Financial Position
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]
Diluted (USD per share) from continuing operations
Income (Loss) from Continuing Operations, Per Diluted Share
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Management fees paid to AFG
Management Fees Paid by Variable Interest Entities
Management fees paid by variable interest entities.
Shares exchanged — benefit plans (shares)
Stock Repurchased Shares Exchanged in Stock Compensation Plans, Shares
Repurchased shares exchanged in stock compensation plans, shares
Effect of tax exempt interest as a percentage of EBT
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
Face Amount Of Managed Investment Entities Liabilities Purchased At Issuance Date
Face Amount Of Managed Investment Entities Liabilities Purchased At Issuance Date
Face amount of managed investment entities liabilities purchased at issuance date.
Statement of Cash Flows [Abstract]
Statement of Cash Flows [Abstract]
Amount borrowed under revolving credit facility
Long-Term Line of Credit
Entity Address, State or Province
Entity Address, State or Province
Transfer out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Level 1
Fair Value, Inputs, Level 1 [Member]
Other lines
Other Lines [Member]
Other lines.
Sales and settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Prepaid reinsurance premiums
Prepaid Reinsurance Premiums
Other comprehensive loss, net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Operating Activities [Domain]
Operating Activities [Domain]
Award Type [Axis]
Award Type [Axis]
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.
Reinsurance and other receivables
Increase (Decrease) in Reinsurance and Other Receivables
Increase (Decrease) in reinsurance, agent's balances and premiums receivable and other receivables.
Income of managed investment entities:
Income (Loss) of Managed Investment Entities [Abstract]
Income (loss) of managed investment entities.
Significant Accounting Policies [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net cash provided by operating activities
Net Cash Provided by (Used in) Operating Activities
Total pension and OPRP adjustments, pretax
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, before Tax
Derivative asset
Derivative Asset
Sales and settlements
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements
Effect of nondeductible expenses as a percentage of EBT
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent
Other liabilities
Other Liabilities
Contingent consideration — acquisitions
Contingent Consideration - Acquisitions [Member]
Contingent consideration of acquisitions.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Purchases of investments
Purchases of Investments by Managed Investment Entities
The cash outflow from the purchase of investments by managed investment entities.
Collateralized loan obligations and other ABS (average life of approximately 3.5 years)
Collateralized Loan Obligations and Other Available for Sale Securities ABS Amortized Cost
Collateralized loan obligations and Other asset-backed securities, amortized cost.
Mortgage loans
Payments to Acquire Mortgage Notes Receivable
Initial allowance for purchased securities with credit deterioration
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Purchased with Credit Deterioration, Increase
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.
Fair value as percentage of cost - Less than twelve months
Debt Securities, Available-for-sale, 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.
Liability Class [Axis]
Liability Class [Axis]
Level 3 assets that were priced by pricing services.
Level Three Assets That Were Priced by Pricing Services.
Level three assets that were priced by pricing services.
Effect of prior year income taxes
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount
Total liabilities
Liabilities of managed investment entities
Liabilities
Reclassification adjustment for investment income included in net earnings from discontinued operations, pretax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Investing Activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Roll forward of allowance for credit losses on fixed maturity securities
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table Text Block]
Write-offs charged against the allowance
Reinsurance, Loss on Uncollectible Accounts in Period, Amount
Prior years
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
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
Realized gains (losses) on:
Realized Gains (Losses) [Abstract]
Realized Gains (Losses)
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy and NAV [Domain]
Unpaid losses and loss adjustment expenses
Balance at beginning of year
Gross unpaid losses and LAE included in the balance sheet at end of period
Liability for Claims and Claims Adjustment Expense, Property-Casualty Liability
MBS (average life of approximately 5.5 years)
Available for Sale Securities MBS Amortized Cost
Mortgage-backed securities, amortized cost.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Investment in CLO tranches
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount
Basic (USD per share) from discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share
Accumulated net investment gain (loss) attributable to parent
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Document Type
Document Type
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.
Long-Term Debt
Long-Term Debt [Text Block]
Sales and settlements of equity index options and other investments
Proceeds from Sale and Maturity of Other Investments
Subsidiaries
Gain (Loss) on Disposition of Stock in Subsidiary
Assets:
Assets, Fair Value Disclosure [Abstract]
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.
Business Segments [Axis]
Segments [Axis]
New Collateralized Loan Obligation Entities
New Collateralized Loan Obligation Entities [Member]
New collateralized loan obligation entities.
Cash and cash equivalents of businesses sold
Cash Divested from Deconsolidation
Property and Casualty Insurance
Property and Casualty Insurance [Member]
Property and casualty insurance.
Entity Shell Company
Entity Shell Company
Investments:
Investments [Abstract]
Net investment income earned and investment expenses incurred
Investment Income [Table Text Block]
Net Investment Income [Line Items]
Net Investment Income [Line Items]
Financial Instrument [Axis]
Financial Instrument [Axis]
Effect of tax exempt interest
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Unrealized holding gains (losses) on cash flow hedges arising during the period, pretax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax
Scheduled principal payments on debt in year three
Long-Term Debt, Maturity, Year Three
Total realized/unrealized gains (losses) included in Net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Real estate and other investments
Other Investments
Document Period End Date
Document Period End Date
Equity index put options
Put Option [Member]
Subordinated Debt Obligations
Subordinated Debt Obligations [Member]
Debt Securities, Available-for-sale [Table]
Debt Securities, Available-for-Sale [Table]
Deferred Policy Acquisition Costs (“DPAC”)
Deferred Policy Acquisition Costs, Policy [Policy Text Block]
Net earnings from operations, net of tax
Discontinued Operation, Income (Loss) From Discontinued Operation After Income Tax and Before Gain Loss on Disposal of Discontinued Operation
Income (loss) from discontinued operations after income tax and before gain (loss) on disposal of discontinued operation
Liabilities of managed investment entities
Liabilities of Managed Investment Entities
The carrying amount of the consolidated Variable Interest Entity's liabilities included in the reporting entity's statement of financial position.
Components of accumulated other comprehensive income (loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Total assets
Assets of managed investment entities
Assets
Total payments
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Debt Disclosure [Abstract]
Debt Disclosure [Abstract]
Income Statement Location [Axis]
Income Statement Location [Axis]
Internally developed level 3 assets
Internally Developed Level 3 Assets
Level 3 assets in which the fair value was developed internally.
Total net unrealized gains (losses) on securities, tax
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, Tax
Percent of real-estate related investments by property type
Real-estate Related Investments, Percent, By Property Type
Percent of real-estate related investments by property type
Unrealized holding gains (losses) on securities arising during the period, pretax
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax
Equity securities, at fair value
Equity securities
Equity Securities, FV-NI, Current
Interest rate swaps
Interest Rate Swap [Member]
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Accounting Policies [Abstract]
Accounting Policies [Abstract]
Stockholders' Equity Note [Abstract]
Stockholders' Equity Note [Abstract]
Other asset-backed securities
Other asset-backed securities
Asset-Backed Securities [Member]
Shareholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Effect of foreign operations as a percentage of EBT
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Segments [Domain]
Segments [Domain]
Sales of businesses
Cash proceeds from sale of businesses
Proceeds from Divestiture of Interest in Consolidated Subsidiaries
5.625% Subordinated Debentures due June 2060
Subordinated Debentures Due In June 2060 [Member]
Subordinated Debentures Due In June 2060
After one year through five years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five
Less reinsurance recoverables, net of allowance
Add back reinsurance recoverables, net of allowance
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
Unrealized holding gains (losses) on securities arising during the period, tax
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax
Schedule of Investments [Line Items]
Schedule of Investments [Line Items]
Earnings from real-estate related investments, net of DAC
Earnings from Real-Estate Related Investments, net of DAC
Earnings from real-estate related investments, net of DAC
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.
Award Type [Domain]
Award Type [Domain]
Residential MBS
Residential MBS
Residential Mortgage-Backed Securities [Member]
Effect of change in valuation allowance as a percentage of EBT
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Loss on retirement of debt
Loss on retirement of debt, including make-whole call premium
Gain (Loss) on Extinguishment of Debt
Net cash used in investing activities
Cash Provided by (Used in) Investing Activities, Discontinued Operations
Face Value Of Liabilities Issued By Managed Investment Entities On Issuance Date
Face Value Of Liabilities Issued By Managed Investment Entities On Issuance Date
Face value of liabilities issued by managed investment entities.
Fair value of financial instruments
Fair Value, by Balance Sheet Grouping [Table Text Block]
Businesses
Payments to acquire subsidiaries
Payments to Acquire Businesses, Gross
Equity index options and other investments
Payments to Acquire Other Investments
Derivative Contract [Domain]
Derivative Contract [Domain]
Fixed maturities, trading at fair value
Trading fixed maturities
Debt Securities, Trading
Entity Registrant Name
Entity Registrant Name
Equity securities reported at fair value
Marketable Securities [Table Text Block]
Face amount of debt repurchased
Debt Instrument, Repurchased Face Amount
Write-offs charged against the allowance
Premium Receivable, Allowance for Credit Loss, Writeoff
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.
Goodwill
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]
Insurance [Abstract]
Insurance [Abstract]
5.25% Senior Notes due April 2030
Senior Notes Due In April 2030 [Member]
Senior Notes due in April 2030
Fair value, Total, Percent
Available For Sale Securities Debt Maturities Fair Value Percent
Available-for-sale Securities, Debt Maturities, Fair Value, Total, Percent.
Mortgage loans
Mortgage Loans on Real Estate, Commercial and Consumer, Net
Premium Recognition
Insurance Premiums Revenue Recognition, Policy [Policy Text Block]
Accumulated foreign currency adjustment attributable to parent
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Fair value as percentage of cost - Twelve months or more
Debt Securities, Available-for-sale, 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.
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)
Entity Address, City or Town
Entity Address, City or Town
Accumulated gain (loss), net, cash flow hedge, parent
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
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.
Subsegments [Axis]
Subsegments [Axis]
Net unrealized gains (losses) on securities:
Debt Securities, Unrealized Gain (Loss) [Abstract]
Beginning Balance
Ending Balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Debt Securities, Available-for-sale, Allowance for Credit Loss [Line Items]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Line Items]
Fair Value by Asset Class [Domain]
Asset Class [Domain]
Minimum
Minimum [Member]
One year or less
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One
Statement of Financial Position [Abstract]
Statement of Financial Position [Abstract]
Entity Emerging Growth Company
Entity Emerging Growth Company
Unrealized holding gains (losses) on cash flow hedges arising during the period
Unrealized holding gains (losses) on cash flow hedges arising during the period, after tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Diluted (USD per share) from discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share
Effect of stock-based compensation
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount
Gain (loss) reclassified from AOCI into net investment income
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net
Discount and Issue Costs
Debt Issuance Costs, Net
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Abstract]
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Investment, Name [Axis]
Investment, Name [Axis]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Net transfers from variable annuity assets
Net Transfers From To Separate Accounts
Net transfers from (to) separate accounts related to variable annuity assets.
Annuity subsidiaries
Annuity Subsidiaries [Member]
Annuity subsidiaries to be sold
Operating loss carryforwards subject to SRLY tax rules will expire unutilized at December 31, 2022
Operating Loss Carryforwards
Available for sale securities in a continuous unrealized loss position
Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Trading Symbol
Trading Symbol
Entity File Number
Entity File Number
Other liabilities — derivatives
Other Liabilities [Member]
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.
Operating Activities [Axis]
Operating Activities [Axis]
Forfeitures of restricted stock (shares)
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Managed by third parties
Managed by Third Parties [Member]
Managed by third parties
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Schedule of Investment Income, Reported Amounts, by Category [Table]
Investment Income [Table]
Derivatives
Derivatives, Policy [Policy Text Block]
Entity Information [Line Items]
Entity Information [Line Items]
Provision for income taxes as shown on the Statement of Earnings as a percentage of EBT
Effective Income Tax Rate Reconciliation, Percent
Realized gain on subsidiaries
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax
Cash and cash equivalents
Cash and Cash Equivalents, Fair Value Disclosure
AFG
Parent Company [Member]
LIBOR
London Interbank Offered Rate (LIBOR) [Member]
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Financial liabilities, Beginning Balance
Financial liabilities, Ending Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value
Total revenues
Total revenues
Revenues
Total net unrealized losses on cash flow hedges
Total net unrealized gains (losses) on cash flow hedges
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax
Reinsurance
Reinsurance Accounting Policy [Policy Text Block]
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Income Taxes
Income Tax Disclosure [Text Block]
Net earnings from continuing operations
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Nonvoting Preferred Stock
Nonvoting Preferred Stock [Member]
Nonvoting preferred stock.
Fair Value - Twelve months or more
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer
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.
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
Debt Securities, Trading, and Equity Securities, FV-NI [Table]
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.
Amortization of intangible assets
Amortization of Intangible Assets
Basic (USD per share)
Earnings Per Share, Basic
Reclassification adjustment for investment income included in net earnings from discontinued operations, tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax
Total liabilities of discontinued annuity operations
Disposal Group, Including Discontinued Operation, Liabilities
Accounting Policies [Table]
Accounting Standards Update and Change in Accounting Principle [Table]
Total net unrealized gains (losses) on cash flow hedges, pretax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax
Accumulated defined benefit plans adjustment attributable to parent
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Insurance
Insurance Disclosure [Text Block]
Reclassification adjustment for unrealized gains on cash flow hedges of subsidiaries sold
Reclassification for unrealized gains on cash flow hedges of subsidiaries sold, after tax
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax, Disposition of Subsidiaries
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification After Tax, Disposition of Subsidiaries
Total shareholders’ equity
Net investment in annuity businesses sold, excluding AOCI
Stockholders' Equity Attributable to Parent
After five years through ten years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10
Unrealized holding gains (losses) on pension and OPRP arising during the period, pretax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax
Fixed maturities, available for sale, allowance for expected credit losses
Beginning balance
Ending balance
Debt Securities, Available-for-Sale, Allowance for Credit Loss
Statement of Cash Flows
Statement of Cash Flows [Policy Text Block]
Describes an entity's accounting policy related to the statement of cash flows.
Transfer into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers Into Level 3
Entity Interactive Data Current
Entity Interactive Data Current
Tax effects
Tax Effects [Member]
Tax effects.
Commercial MBS
Commercial MBS
Commercial Mortgage-Backed Securities [Member]
Accumulated amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Reclassification adjustment for pension settlement loss included in other expense in net earnings, pretax
Other Comprehensive Income (Loss), Defined Benefit Plan, Pension Settlement, Reclassification Adjustment from AOCI, before Tax
Other comprehensive income (loss), defined benefit plan, pension settlement, reclassification adjustment from AOCI, before tax
Change in:
Increase (Decrease) in Operating Capital [Abstract]
Annuity benefits
Disposal Group, Including Discontinued Operations, Annuity Benefits
Annuity benefits of discontinued operations included in a disposal group
Changes in balances of Level 3 financial liabilities
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Scheduled principal payments on debt in year five
Long-Term Debt, Maturity, Year Five
Sales of fixed maturities
Proceeds from Sale of Debt Securities, Available-for-Sale
Sale of annuity business
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Disposition of Subsidiaries
Fair value measurement with unobservable inputs reconciliation, recurring basis, liability, disposition of subsidiaries
Portion at fair value measurement
Portion at Fair Value Measurement [Member]
Retained Earnings
Retained Earnings [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Dividends
Dividends, Common Stock, Cash
Common Stock
Common Shares
Common stocks
Common Stock [Member]
Other comprehensive loss
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Discontinued Operations
Discontinued Operations, Policy [Policy Text Block]
Agents’ balances and premiums receivable
Premiums Receivable, Net
Number of segments
Number of Reportable Segments
Repurchases of Common Stock
Payments for Repurchase of Common Stock
Securities
Realized gains (losses) on securities
Marketable Securities, Realized Gain (Loss)
Fair value of potential contingent consideration
Business Combination, Contingent Consideration, Liability
Class of Stock [Axis]
Class of Stock [Axis]
Scheduled principal payments on debt thereafter
Long-Term Debt, Maturity, after Year Five
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.
Income Taxes
Income Tax, Policy [Policy Text Block]
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Statement [Table]
Statement [Table]
Provision (credit) for expected credit losses
Premium Receivable, Credit Loss Expense (Reversal)
Information on sale of Annuity subsidiaries
Disposal Groups, Including Discontinued Operations [Table Text Block]
Investment income
Investment Income of Managed Investment Entities
Investment income of managed investment entities.
Dividend reinvestment plan
Stock Issued During Period, Value, Dividend Reinvestment Plan
Document Quarterly Report
Document Quarterly Report
Discontinued Operations and Disposal Groups [Abstract]
Number Of Collateralized Loan Obligation Entities Formed During The Period
Number Of Collateralized Loan Obligation Entities Formed During The Period
Number of collateralized loan obligation entities formed during the period.
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Other comprehensive income (loss), pretax
Other Comprehensive Income (Loss), before Tax
Realized — impairments
Other-than-temporary Impairment Loss, Debt Securities, Available-for-Sale, Recognized in Earnings
Disposal Group Name [Axis]
Disposal Group Name [Axis]
After ten years
Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10
Transfer into Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Other operating activities, net
Other Operating Activities, Cash Flow Statement
U.S. government and government agencies
U.S. government agency
US Treasury and Government [Member]
Statement, Equity Components [Axis]
Equity Components [Axis]
Equity Components [Axis]
Accumulated Other Comprehensive Income, Net of Tax ("AOCI")
Comprehensive Income, Policy [Policy Text Block]
Segments of Operations
Segment Reporting, Policy [Policy Text Block]
Assets of managed investment entities
Assets of Managed Investment Entities
The carrying amount of the consolidated Variable Interest Entity's assets included in the reporting entity's statement of financial position.
Reclassification adjustment for realized (gains) losses included in net earnings, tax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax
Fair value - less than twelve months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months
Other specialty
Specialty Other Insurance [Member]
Specialty Other Insurance.
Document Fiscal Year Focus
Document Fiscal Year Focus
Operating Activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Statement [Line Items]
Statement [Line Items]
Post-closing adjustments
Disposal Group, Including Discontinued Operation, Consideration
Retained earnings
Retained Earnings, Unappropriated
Changes in the goodwill
Goodwill, Period Increase (Decrease)
Unfunded commitments to limited partnerships
Unfunded Commitments To Limited Partnerships
Represents commitments to fund credit facilities and contribute capital to certain limited partnership investments at a future date.
Insurance claims and reserves
Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve
Variable Rate [Domain]
Variable Rate [Domain]
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.
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV [Axis]
Commissions and other underwriting expenses
Selling, General and Administrative Expense
Repayments of mortgage loans
Proceeds from Sale and Collection of Mortgage Notes Receivable
Change in fair value of contingent consideration liability
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability
Gross unrealized losses on fixed maturities
Fixed maturities, available for sale, gross unrealized, losses
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax
Operating lease right-of-use asset
Operating Lease, Right-of-Use Asset
Accumulated Other Comp. Income Loss
AOCI attributable to parent
AOCI Attributable to Parent [Member]
Transfer out of Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Liability, Transfers out of Level 3
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.
Annuity receipts
Proceeds from Annuities and Investment Certificates
Reclassification adjustment for realized (gains) losses included in net earnings, pretax
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax
Net earnings from discontinued operations
Discontinued Operations [Member]
Document Transition Report
Document Transition Report
New collateralized loan obligation temporary warehousing entities
New Collateralized Loan Obligation Temporary Warehousing Entities [Member]
New collateralized loan obligation temporary warehousing entities
Local Phone Number
Local Phone Number
Reclassification adjustment for unrealized gains (losses) on securities of subsidiaries sold, pretax
Other Comprehensive Income Loss Reclassification Adjustment From AOCI For Sale Of Securities Before Tax, Disposition of Subsidiaries
Other comprehensive income loss reclassification adjustment from AOCI for sale of securities before tax, disposition of subsidiaries
Earnings from continuing operations before income taxes
Earnings from continuing operations before income taxes (“EBT”)
Operating Income (Loss)
Retirements of managed investment entities’ liabilities
Retirement Of Managed Investment Entities Liabilities
Retirement of managed investment entities' liabilities.
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
Other expenses
Other Cost and Expense, Operating
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.
Common Stock, shares outstanding (shares)
Beginning Balance (shares)
Ending Balance (shares)
Common Stock, Shares, Outstanding
Debt Securities, Available-for-sale, Allowance for Credit Loss [Table]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Table]
Goodwill
Goodwill
Gain (Loss) on Derivative - Statement of Income - Extensible Enumeration
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Provision for income taxes on discontinued operations
Discontinued Operation, Tax Effect of Discontinued Operation
Total liabilities accounted for at fair value
Liabilities, Fair Value Disclosure
Shares acquired and retired (shares)
Stock Repurchased During Period, Shares
Effect of foreign operations
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Adjustments:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Goodwill and Other Intangibles
Goodwill and Intangible Assets Disclosure [Text Block]
Provision for income taxes
Provision for income taxes as shown on the Statement of Earnings
Income Tax Expense (Benefit)
Effect of dividends received deduction
Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount
Income Statement [Abstract]
Income Statement [Abstract]
Hedging Relationship [Axis]
Hedging Relationship [Axis]
Document Fiscal Period Focus
Document Fiscal Period Focus
Earnings per Basic Common Share:
Earnings Per Share, Basic [Abstract]
Diluted (shares)
Weighted Average Number of Shares Outstanding, Diluted
Derivative liability
Derivative Liability
Total net unrealized gains (losses) on securities, pretax
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax
Percentage of level three assets that were priced using a discounted cash flow approach
Percentage Of Level Three Assets That Were Priced Using A Discounted Cash Flow Approach
Percentage of level three assets that were priced using a discounted cash flow approach.
Pension and other postretirement plans adjustments (“OPRP”):
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Level three assets, equity securities, priced using broker quotes and internal models
Level Three Assets, Equity Securities, Priced Using Broker Quotes And Internal Models
Level three assets, equity securities priced using broker quotes and internal models
Debt Securities, Available-for-sale [Line Items]
Debt Securities, Available-for-Sale [Line Items]
Available for sale fixed maturities
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]
Insurance Loss Reserves [Abstract]
Insurance Loss Reserves [Abstract]
Shares issued:
Shares Issued [Abstract]
Shares issued.
Provision for expected credit losses on securities with no previous allowance
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Not Previously Recorded
Managed investment entities:
Managed Investments Entities [Abstract]
Managed investments entities.
Common Stock, no par value — 200,000,000 shares authorized — 85,140,521 and 84,920,965 shares outstanding
Common Stock, Value, Issued
Carrying Value
Reported Value Measurement [Member]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Perpetual preferred stocks
Preferred Stock [Member]
Senior Notes
Senior Notes [Member]
Percentage of level three assets, equity securities, priced using broker quotes and internal models
Percentage Of Level Three Assets, Equity Securities, Priced Using Broker Quotes And Internal Models
Percentage of level three assets, equity securities priced using broker quotes and internal models
Restricted stock awards (shares)
Restricted Common Stock, shares issued (shares)
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Deferred policy acquisition costs
Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net
Foreign currency translation and other
Liability for Unpaid Claims and Claims Adjustment Expense, Foreign Currency Translation Gain (Loss)
Realized (gains) losses on investing activities
Realized Investment Gains (Losses)
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.
Assets and liabilities measured at fair value
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Net investment income
Disposal Group, Including Discontinued Operation, Net Investment Income
Net investment income of discontinued operations included in a disposal group
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.
Ceded annuity surrenders, benefits and withdrawals
Ceded Annuity Surrenders, Benefits, and Withdrawals
Ceded annuity surrenders, benefits, and withdrawals
Multifamily
Multifamily [Member]
Reclassification adjustment for pension settlement loss included in net earnings
Reclassification adjustment for pension settlement loss included in net earnings
Other Comprehensive Income (Loss), Defined Benefit Plan, Pension Settlement, Reclassification Adjustment from AOCI, after Tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Pension Settlement, Reclassification Adjustment from AOCI, after Tax
Other income
Other Income
Preferred Stock, shares authorized (shares)
Preferred Stock, Shares Authorized
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
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).
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Cash and cash equivalents at beginning of period
Cash and cash equivalents at end of period
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents
Foreign currency translation adjustments
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Purchases
Amount Of Managed Investment Entities Liabilities Purchased During the Period
Amount of managed investment entities liabilities purchased during the period
Level 3 assets that are equity securities that do not qualify for equity accounting
Level Three Assets, Equity Investments That Do Not Qualify for Equity Accounting
Level three assets, equity investments that do not qualify for equity accounting
Contingencies
Commitments and Contingencies Disclosure [Text Block]
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.
Change in unrealized
Change In Unrealized Appreciation Depreciation
Change in unrealized appreciation depreciation.
Investments accounted for using the equity method
Equity Method Investments [Table Text Block]
Effect of other income
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Common Stock and Capital Surplus
Common Stock Including Additional Paid in Capital [Member]
Investments accounted for using the equity method
Equity Method Investments
Total net unrealized gains (losses) on cash flow hedges, tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax
Number of collateralized loan obligation entities
Number of Collateralized Loan Obligation Entities
Number of collateralized loan obligation entities.
Total
Parent [Member]
Separate Return Limitation Year Tax Rules
Separate Return Limitation Year Tax Rules [Member]
Amount of NOL carry forward that expired due to the Separate Return Limitation Year tax Rules (SYLR).
Expenses related to acquisition of subsidiary
Business Combination, Acquisition Related Costs
Income Statement Location [Domain]
Income Statement Location [Domain]
Cash flow hedging
Cash Flow Hedging [Member]
Effect of ESOP dividend paid deduction as a percentage of EBT
Effective Income Tax Rate Reconciliation, Deduction, Employee Stock Ownership Plan Dividend, Percent
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.
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]
Net purchases of trading securities
Proceeds from (Payments for) Trading Securities, Short-Term
Amendment Flag
Amendment Flag
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Gain on sale, net of tax
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax
Investment Type [Axis]
Investment Type [Axis]
Investments
Investment, Policy [Policy Text Block]
Other comprehensive loss, net of tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Other
Corporate and Other [Member]
Comprehensive income (loss)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Net unrealized gains (losses) on securities:
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]
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.
Acquisition and Sale of Businesses
Mergers, Acquisitions and Dispositions Disclosures [Text Block]
Segment reporting information, by segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Total pension and OPRP adjustments, tax
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax
Fixed maturities, available for sale, gross unrealized, gains
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax
Entity Current Reporting Status
Entity Current Reporting Status
Collateralized loan obligations and other ABS (average life of approximately 3.5 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.
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets Disclosure [Abstract]
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.
Shares exchanged — benefit plans
Stock Repurchased Shares Exchanged in Stock Compensation Plans, Value
Stock repurchased, shares exchanged in stock compensation plans, value.
Long-term Debt, Fiscal Year Maturity [Abstract]
Long-Term Debt, Fiscal Year Maturity [Abstract]
Gross realized gains and losses on available for sale fixed maturity and equity security investments
Schedule of Realized Gain (Loss) [Table Text Block]
Payments for losses and LAE of:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Property and casualty insurance:
Property And Casualty Insurance [Abstract]
Property And Casualty Insurance
Statutory rate of income taxes
Income taxes at statutory rate as a percentage of EBT
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
The scheduled maturities of available for sale fixed maturities
Available-for-Sale Securities, Debt Maturities [Abstract]
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.
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Premium Receivable, Allowance for Credit Loss [Roll Forward]
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Effect of stock-based compensation as a percentage of EBT
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
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.
Realized gains (losses) on securities
Disposal Group, Including Discontinued Operations, Marketable Securities Realized Gain (Loss)
Realized gain (loss) of discontinued operations included in a disposal group
Unrealized holding losses on pension and OPRP arising during the period
Unrealized holding gains (losses) on pension and OPRP arising during the period, after tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, after Tax
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Other assets
Disposal Group, Including Discontinued Operation, Other Assets
Basis of Presentation
Basis of Accounting, Policy [Policy Text Block]
Depreciation and amortization
Depreciation, Amortization and Accretion, Net
Entities [Table]
Entities [Table]
Reductions of long-term debt
Reductions of long-term debt
Repayments of Long-Term Debt
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.
Total realized/unrealized gains (losses) included in Net income
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings
Amortized Cost
Debt Securities, Available-for-Sale, Amortized Cost, after Allowance for Credit Loss
Contingent consideration possible to be paid, maximum
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High
Total pension and OPRP adjustments
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Change in fair value
Change in Fair Value of Ownership of Managed Investment Entities Liabilities
Change in fair value of ownership of managed investment entities liabilities
Selected financial information related to collateralized loan obligations
Financial Information Related to Collateralized Loan Obligations [Abstract]
Financial information related to collateralized loan obligations.
Total costs and expenses
Disposal Group, Including Discontinued Operation, Operating Expense
Assets of MIE
Assets of Managed Investment Entities [Member]
Assets of managed investment entities.
Total net proceeds
Disposal Group, Including Discontinued Operations, Proceeds from Divestiture of Businesses, Net
The net proceeds from the sale of businesses classified as discontinued operations
Purchases of:
Payments for Investing Activities [Abstract]
Exercise of stock options
Stock Issued During Period, Value, Stock Options Exercised
Long-term debt
Carrying Value
Long-Term Debt
Total net unrealized losses on securities
Total net unrealized gains (losses) on securities
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax
Common Stock, shares authorized (shares)
Common Stock, Shares Authorized
Liabilities of discontinued annuity operations
Liabilities of Discontinued Annuity Operations [Member]
Liabilities of discontinued annuity operations that are held for sale
Expenses of managed investment entities
Expenses of Managed Investment Entities
Expenses of managed investment entities.
Private equity
Equity Method Investments, Private Equity Funds [Member]
Equity Method Investments, Private Equity Funds
Statement of Comprehensive Income [Abstract]
Statement of Comprehensive Income [Abstract]
Maximum
Maximum
Maximum [Member]
Accumulated other comprehensive income (loss), net of tax
Reclassify AOCI
AOCI beginning balance
AOCI ending balance
Accumulated Other Comprehensive Income (Loss), Net of Tax
Provision (credit) for expected credit losses
Reinsurance Recoverable, Credit Loss Expense (Reversal)
Mortgage loans and other investments
Mortgage Loans And Other Investments [Member]
Mortgage loans and other investments.
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Stock Incentive Plan
Share-Based Payment Arrangement [Member]
Verikai, Inc.
Verikai, Inc. [Member]
Verikai, Inc.
Shares acquired and retired
Stock Repurchased and Retired During Period, Value
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value
Operating Loss Carry Forward Expired [Axis]
Operating Loss Carry Forward Expired [Axis]
Amount operating loss carry forward that expired.
Change in fair value of equity securities
Equity Securities, FV-NI, Gain (Loss)
Designated as hedging instrument
Designated as Hedging Instrument [Member]
Collateralized loan obligations
Collateralized Loan Obligations [Member]
Unrealized holding gains (losses) on cash flow hedges arising during the period, tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Reclassify net deferred tax asset
Disposal Group, Including Discontinued Operations, Reclassification of Net Deferred Tax Assets
Disposal group including discontinued operations, reclassification of net deferred tax assets
Entity Small Business
Entity Small Business
Measurement Basis [Axis]
Measurement Basis [Axis]
Shareholders' Equity
Stockholders' Equity Note Disclosure [Text Block]
Cash dividends per Common Share (USD per share)
Common Stock, Dividends, Per Share, Declared
Revenues:
Revenues [Abstract]
Amortizable intangible assets related to property and casualty insurance acquisitions
Finite-Lived Intangible Assets, Net
Other income
Disposal Group, Including Discontinued Operation, Other Income
Additions (reductions) to previously recognized expected credit losses
Debt Securities, Available-for-Sale, Allowance for Credit Loss, Not to Sell before Recovery, Credit Loss, Previously Recorded, Expense (Reversal)
Unpaid Losses and Loss Adjustment Expenses
Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block]
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Fixed maturities
Payments to Acquire Debt Securities, Available-for-Sale
Fixed maturities, available-for-sale securities, accumulated gross unrealized gain (loss), before tax
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain (Loss), before Tax
Accounting Policies
Significant Accounting Policies [Text Block]
Investment income
Investment Income [Member]
Other benefit plans (shares)
Stock Issued During Period, Shares, Employee Benefit Plan
Property and casualty insurance net earned premiums
Total premiums earned
Premiums Earned, Net, Property and Casualty
Net of tax
Marketable Securities [Member]
Marketable Securities.
Earnings before income taxes from discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
5.125% Subordinated Debentures due December 2059
Subordinated Debentures due in December 2059 [Member]
Subordinated Debentures due in December 2059
Total pretax
Pretax [Member]
Total Pretax.
Managed Investment Entities
Consolidation, Variable Interest Entity, Policy [Policy Text Block]
Subordinated Debentures
Subordinated Debt [Member]
Insurance Agency
Insurance Agency [Member]
Insurance Agency
Title of 12(b) Security
Title of 12(b) Security
MBS (average life of approximately 5.5 years)
Mortgage-Backed Securities Available-for-Sale, Fair Value Disclosure
Consolidated Entities [Axis]
Consolidated Entities [Axis]
Ceded annuity receipts
Annuity Receipts Ceded
Annuity receipts ceded to third parties
Amount of debt repurchased
Debt Instrument, Repurchase Amount
Realized before impairments
Marketable Securities, Realized Gain (Loss), Excluding Other-than-temporary Impairment Loss
Net cash provided by financing activities
Cash Provided by (Used in) Financing Activities, Discontinued Operations
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Business Combination and Asset Acquisition [Abstract]
Class of Stock [Line Items]
Class of Stock [Line Items]
Unrealized loss - less than twelve months
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Operating lease liability
Operating Lease, Liability
Recoverables from reinsurers
Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments
Segments of Operations
Segment Reporting Disclosure [Text Block]
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.
Stock-Based Compensation
Share-Based Payment Arrangement [Policy Text Block]
Investments, Debt and Equity Securities [Abstract]
Investments, Debt and Equity Securities [Abstract]
Other receivables
Other Receivables
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward]
Reclassification for unrealized gains on cash flow hedges of subsidiaries sold, pretax
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax, Disposition of Subsidiaries
Other comprehensive income loss cash flow hedge gain loss reclassification before tax, disposition of subsidiaries
Unrealized Loss - Twelve months or more
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Derivative
Derivative, Gain (Loss) on Derivative, Net
Reclassification adjustment for unrealized gains of subsidiaries sold
Reclassification adjustment for unrealized gains (losses) on securities of subsidiaries sold, after tax
Other Comprehensive Income Loss Reclassification Adjustment From AOCI For Sale Of Securities Net Of Tax, Disposition of Subsidiaries
Other Comprehensive Income Loss Reclassification Adjustment From AOCI For Sale Of Securities Net Of Tax, Disposition of Subsidiaries
Liabilities and Equity:
Liabilities and Equity [Abstract]
Fair Value
Estimate of Fair Value Measurement [Member]
Subsegments [Domain]
Subsegments [Domain]
Fair Value, Recurring and Nonrecurring [Table]
Fair Value, Recurring and Nonrecurring [Table]
Fixed maturities, available for sale, amortized cost
Debt Securities, Available-for-Sale, Amortized Cost
Provision for losses and LAE occurring in the current period
Current Year Claims and Claims Adjustment Expense
Scheduled principal payments on debt remainder of fiscal year
Long-Term Debt, Maturity, Remainder of Fiscal Year
Average number of Common Shares:
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Maturities of short term investments
Maturity Period Of Short Term Investment Maximum
Maturity period of short term investment maximum.
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.
Other assets
Increase (Decrease) in Other Operating Assets
Equity securities, at cost
Equity Securities, FV-NI, Cost
Level three assets that were priced using a discounted cash flow approach
Level Three Assets That Were Priced Using A Discounted Cash Flow Approach
Level three assets that were priced using a discounted cash flow approach.
Basic (USD per share) from continuing operations
Income (Loss) from Continuing Operations, Per Basic Share
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.
Scheduled principal payments on debt in year four
Long-Term Debt, Maturity, Year Four
Hedging Relationship [Domain]
Hedging Relationship [Domain]
Available for sale fixed maturity securities by contractual maturity date
Investments Classified by Contractual Maturity Date [Table Text Block]
Hedging Designation [Axis]
Hedging Designation [Axis]
MBS with embedded derivatives
Mortgage Backed Securities with Embedded Derivatives [Member]
Mortgage backed securities with embedded derivatives.
Total cash and investments
Investments and Cash
Entity Filer Category
Entity Filer Category
Issuances of Common Stock
Proceeds from Issuance of Common Stock
Basic (shares)
Weighted Average Number of Shares Outstanding, Basic
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.
Payable to reinsurers
Reinsurance Payable
Selected financial information related to collateralized loan obligations
Schedule of Variable Interest Entities [Table Text Block]
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.
Disposal Groups, Including Discontinued Operations [Table]
Disposal Groups, Including Discontinued Operations [Table]
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.
Net decrease in the provision for claims of prior years
Prior Year Claims and Claims Adjustment Expense
Liabilities:
Liabilities, Fair Value Disclosure [Abstract]
Losses and loss adjustment expenses
Policyholder Benefits and Claims Incurred, Net, Property, Casualty and Liability
Compensation expense related to stock incentive plans
Share-Based Payment Arrangement, Expense
Assets and liabilities measured at fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
3.50% Senior Notes due August 2026
Senior Notes Due In August 2026 [Member]
Senior Notes due in August 2026.
Receivable for collateral posted related to swaps
Receivable for Collateral Posted Related to Swaps
Receivable for collateral posted related to swaps
Security Exchange Name
Security Exchange Name
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
Derivative, notional amount
Derivative, Notional Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Reclassification adjustment for investment income included in net earnings
Reclassification adjustment for investment income included in net earnings from discontinued operations, after tax
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
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)
Level 3 assets as a percentage of total assets measured at fair value
Level Three Assets As Percentage Of Assets Measured At Fair Value
Level three assets as a percentage of assets measured at fair value
Net unrealized losses on cash flow hedges:
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]
Structured securities
Structured Securities [Member]
Structure securities such as mortgage back securities, collateralized loan obligations and other asset-backed securities
Changes in balances of Level 3 financial assets
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Dividends [Domain]
Dividends [Domain]
Cover [Abstract]
Cover [Abstract]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-Term Debt Instruments [Table]
Specialty casualty
Specialty Casualty Insurance [Member]
Specialty casualty.
Leases
Lessee, Leases [Policy Text Block]
Level 3
Fair Value, Inputs, Level 3 [Member]
Recoverables from reinsurers
Disposal Group, Including Discontinued Operations, Reinsurance Recoverables On Paid And Unpaid Losses
Reinsurance recoverables of discontinued operations included in a disposal group
Fixed maturities
Total fixed maturities
Fixed Maturities [Member]
Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effect of nondeductible expenses
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount
Other assets
Other Assets
Business Combinations [Abstract]
Business Combinations [Abstract]
Tax liabilities triggered by the sale
Operating Tax Liabilities Triggered by Pending Sale
Operating tax liabilities that are triggered by pending sale of businesses
Segment Reporting [Abstract]
Segment Reporting [Abstract]
Equity index call options
Call Option [Member]
Beginning Balance
Ending Balance
Premium Receivable, Allowance for Credit Loss
Investments [Domain]
Investments [Domain]
Total liabilities and shareholders’ equity
Liabilities and Equity
Percentage of internally developed level 3 assets compared to total level 3 assets
Percentage Of Internally Developed Level Three Assets Compared to Total Level 3 Assets
Percentage Of Internally Developed Level Three Assets Compared to Total Level 3 Assets
Current year
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Long-term Debt, Type [Axis]
Long-Term Debt, Type [Axis]
Weighted average common shares adjustment related to stock-based compensation (shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Earnings per Diluted Common Share:
Earnings Per Share, Diluted [Abstract]
Not designated as hedging instrument
Not Designated as Hedging Instrument [Member]
Disposal Group Name [Domain]
Disposal Group Name [Domain]
Accumulated Other Comprehensive Income [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Purchases and issuances
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Issuances
Level 2
Fair Value, Inputs, Level 2 [Member]
Debt Issuance Costs
Debt, Policy [Policy Text Block]
Current Fiscal Year End Date
Current Fiscal Year End Date
Gross gains
Debt Securities, Available-for-Sale, Realized Gain
Purchases and issuances
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Total assets of discontinued annuity operations
Disposal Group, Including Discontinued Operation, Assets
Diluted (USD per share)
Earnings Per Share, Diluted
Sale of annuity business
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Disposition of Subsidiaries
Fair value measurement with unobservable inputs reconciliation, recurring basis, asset, disposition of subsidiaries
5.875% Subordinated Debentures due March 2059
Subordinated Debentures Due In March 2059 [Member]
Subordinated Debentures Due In March 2059
Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Stock-based compensation expense
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
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.
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
After ten years
Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10
Specialty financial
Specialty Financial Insurance [Member]
Specialty Financial.
Net liability at beginning of year
Net liability at end of period
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Equity securities
Equity Securities [Member]
Other
Other Long-term Debt [Member]
Other Long-term Debt.
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
Discontinued Operations
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Corporate and other
Corporate and other
Corporate Debt Securities [Member]
Investment expenses
Investment Income, Investment Expense
Holding gains (losses) on equity securities still held
Equity Securities, FV-NI, Unrealized Gain (Loss)
Net earnings from discontinued operations
Net earnings from discontinued operations
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Reclassification adjustment for pension settlement loss included in other expense in net earnings, tax
Other Comprehensive Income (Loss), Defined Benefit Plan, Pension Settlement, Reclassification Adjustment from AOCI, Tax
Other comprehensive income (loss), defined benefit plan, pension settlement, reclassification adjustment from AOCI, tax
Investment and other income, net
Investment and Other Income, Net
Net investment income plus other income less other expenses.
Foreign government
Debt Security, Government, Non-US [Member]
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.
Entity Address, Address Line One
Entity Address, Address Line One
Other comprehensive income (loss), tax
Other Comprehensive Income (Loss), Tax
Total costs and expenses
Benefits, Losses and Expenses
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.
Real estate-related entities
Real Estate Funds [Member]
Sale related expenses
Disposal Group, Including Discontinued Operations, Expenses from Divestiture of Businesses
Expenses associated with the disposal of a discontinued operation
Allowance for Credit Losses [Roll Forward]
Debt Securities, Available-for-Sale, Allowance for Credit Loss [Roll Forward]
Financial assets:
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Class of Stock [Domain]
Class of Stock [Domain]
Percentage of level 3 assets that were priced by pricing services
Percentage Of Level Three Assets That Were Priced By Pricing Services
Percentage Of Level Three Assets That Were Priced By Pricing Services
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Abstract]
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]
Total losses and LAE incurred
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims
Effect of dividends received deduction as a percentage of EBT
Effective Income Tax Rate Reconciliation, Deduction, Dividend, Percent
Interest charges on borrowed money
Interest Expense
Reinsurance contract (embedded derivative)
Other Contract [Member]
Unrealized holding losses on securities arising during the period
Unrealized holding gains (losses) on securities arising during the period, after tax
OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax
Investment income
Gross Investment Income, Operating
Schedule of long-term debt instruments
Schedule of Long-Term Debt Instruments [Table Text Block]
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.
Amount invested in a temporary warehousing entity
Balance at beginning of period of ownership of CLO tranches
Balance at end of period of ownership of CLO tranches
Variable Interest Entity, Primary Beneficiary, Maximum Loss Exposure, Amount
Other
Other Long-Term Investments [Member]
Other expenses
Disposal Group, Including Discontinued Operation, Other Expense
Entity Tax Identification Number
Entity Tax Identification Number
Schedule of Investments [Table]
Schedule of Investments [Table]
Sales of equity securities
Proceeds from Sale of Equity Securities, FV-NI
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract]
Reclassification of Cash Flow Hedge Gain (Loss) [Abstract]
Amortized Cost Basis, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Amortized Cost, Fiscal Year Maturity [Abstract]
Equity securities
Payments to Acquire Equity Securities, FV-NI
4.50% Senior Notes due June 2047
Senior Notes Due In June 2047 [Member]
Senior Notes due in June 2047.
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.
Consolidated Entities [Domain]
Consolidated Entities [Domain]
Payable to reinsurers
Increase (Decrease) in Reinsurance Payables
Common Stock, par value (USD per share)
Common Stock, No Par Value
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]
Net Change in Cash and Cash Equivalents
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Other benefit plans
Stock Issued During Period, Value, Employee Benefit Plan
Voting Preferred Stock
Voting Preferred Stock [Member]
Voting preferred stock.
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.
Other liabilities
Disposal Group, Including Discontinued Operation, Other Liabilities
Entity Central Index Key
Entity Central Index Key
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Business combination, consideration transferred
Business Combination, Consideration Transferred
Effect of prior year income taxes as a percentage of EBT
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent
Credit Losses on Financial Instruments Measured at Amortized Cost
Credit Loss, Financial Instrument [Policy Text Block]
Beginning Balance
Ending Balance
Reinsurance Recoverable, Allowance for Credit Loss
City Area Code
City Area Code
Assets:
Assets [Abstract]
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.
Issuances of managed investment entities’ liabilities
Proceeds From Issuance Of Managed Investment Entities
Proceeds from issuance of managed investment entities
Long-term Debt, Type [Domain]
Long-Term Debt, Type [Domain]
Available for sale securities in a continuous unrealized loss position
Schedule of Unrealized Loss on Investments [Table Text Block]
Statement of Stockholders' Equity [Abstract]
Statement of Stockholders' Equity [Abstract]
Financial assets, Beginning Balance
Financial assets, Ending Balance
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Income taxes at statutory rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Dividends [Axis]
Dividends [Axis]
Maturities and redemptions of fixed maturities
Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale
Reclassification adjustment for unrealized gains (losses) on securities of subsidiaries sold, tax
Other Comprehensive Income Loss Reclassification Adjustment From AOCI For Sale Of Securities Tax, Disposition of Subsidiaries
Other comprehensive income loss reclassification adjustment from AOCI for sale of securities tax, disposition of subsidiaries
Average life of MBS
Mortgage Backed Securities Average Useful Life
Mortgage backed securities average useful life.
Financing Activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Preferred Stock, par value (USD per share)
Preferred Stock, No Par Value
Foreign currency translation adjustments, pretax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax
Asset Class [Axis]
Asset Class [Axis]
Earnings Per Share
Earnings Per Share, Policy [Policy Text Block]
Scheduled principal payments on debt in year one
Long-Term Debt, Maturity, Year One
Assets of discontinued annuity operations
Assets of Discontinued Annuity Operations [Member]
Assets of the discontinued annuity operations that are held for sale
Variable Rate [Axis]
Variable Rate [Axis]
Equity in earnings of partnerships and similar investments
Income (Loss) from Equity Method Investments
Real Estate, Type of Property [Axis]
Real Estate, Type of Property [Axis]
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.
Single Family
Single Family [Member]
Continuing operations
Continuing Operations [Member]
Other liabilities
Increase (Decrease) in Other Operating Liabilities
Fair Value, Fiscal Year Maturity [Abstract]
Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract]
MBS (average life of approximately 5.5 years)
Available for Sale Securities MBS Fair Value Percent
Mortgage-backed securities, fair value, percent.
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Entity Common Stock, Shares Outstanding Owned by Subsidiaries
Reclassification for unrealized gains on cash flow hedges of subsidiaries sold, tax
Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification, Tax, Disposition of Subsidiaries
Other comprehensive income loss cash flow hedge gain loss reclassification, tax, disposition of subsidiaries
Foreign currency translation adjustments, tax
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax
Gross losses
Debt Securities, Available-for-Sale, Realized Loss
Unearned premiums
Unearned Premiums
Real Estate [Domain]
Real Estate [Domain]
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
AFG's internal investment professionals
Number Of Internal Investment Professionals
Number of internal investment professionals.