Investments, Debt and Equity Securities [Abstract]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Major Types of Debt and Equity Securities [Domain]
U.S. Government and government agencies [Member]
US Treasury and Government [Member]
States, municipalities and political subdivisions [Member]
US States and Political Subdivisions Debt Securities [Member]
Foreign government [Member]
Foreign Government Debt Securities [Member]
Residential Mortgage Backed Securities [Member]
Residential Mortgage Backed Securities [Member]
Commercial Mortgage Backed Securities [Member]
Commercial Mortgage Backed Securities [Member]
Asset-backed Securities [Member]
Asset-backed Securities [Member]
All other corporate [Member]
Corporate and Other Securities [Member]
Corporate and other debt securities
Fixed maturities [Member]
Fixed Maturities [Member]
Common stocks [Member]
Common Stock [Member]
Perpetual preferred stocks [Member]
Preferred Stock [Member]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities in a continuous unrealized loss position
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Unrealized Loss - Less than twelve months
Available For Sale Securities Continuous Unrealized Loss Position Less Than 12 Months Aggregate Losses Accumulated In Investments
Amount of accumulated pre-tax unrealized loss on investments in available-for-sale securities that have been in a loss position for less than twelve months impacting investments.
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 Aggregate Losses Accumulated In Investments
Amount of accumulated pre-tax unrealized loss on securities classified as available-for-sale that have been in a loss position for twelve months or longer impacting investments.
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.
Income Statement [Abstract]
Revenues:
Revenues [Abstract]
Property and casualty insurance net earned premiums
Premiums Earned, Net, Property and Casualty
Life, accident and health net earned premiums
Life, Accident and Health Premiums
Life, accident and health premiums.
Net investment income
Net Investment Income
Realized gains on:
Realized Gains (Losses) on [Abstract]
Realized gains (losses) on.
Securities
Marketable Securities, Realized Gain (Loss)
Subsidiaries
Realized Gains (Losses) on Subsidiaries
Realized gains (losses) on subsidiaries.
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
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]
Property and casualty insurance losses and loss adjustment expenses
Policyholder Benefits and Claims Incurred, Net, Property, Casualty and Liability
Property and casualty insurance 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.
Life, accident and health benefits
Life, Accident and Health Benefits
Life, accident and health benefits.
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
Earnings before income taxes
Operating Income (Loss)
Provision for income taxes
Income Tax Expense (Benefit)
Net earnings, including noncontrolling interests
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Less: Net earnings (loss) attributable to noncontrolling interests
Net Income (Loss) Attributable to Noncontrolling Interest
Net Earnings Attributable to Shareholders
Net Income (Loss) Attributable to Parent
Earnings 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
Cash dividends per Common Share (USD per share)
Common Stock, Dividends, Per Share, Declared
Supplemental disclosure of Realized gains on securities:
Marketable Securities, Realized Gain (Loss) [Abstract]
Realized gains before impairments
Marketable Securities, Realized Gain (Loss), Excluding Other than Temporary 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, Available-for-sale Securities
Impairment charges recognized in earnings
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net, Available-for-sale Securities
Total realized gains on securities
Document and Entity Information [Abstract]
Document and Entity Information.
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Document Type
Document Type
Document Period End Date
Document Period End Date
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 Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Discontinued Operations and Disposal Groups [Abstract]
Acquisitions and Sales of Subsidiaries
Business Combination Disclosure [Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill
Goodwill
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
Non-amortizable intangible assets related to insurance licenses
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Income Tax Disclosure [Abstract]
Income Taxes
Income Tax Disclosure [Text Block]
Equity securities [Member]
Equity Securities [Member]
Gross realized gains and losses on the sale of available for sale fixed maturity and equity security investments
Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract]
Gross gains
Available-for-sale Securities, Gross Realized Gains
Gross losses
Available-for-sale Securities, Gross Realized Losses
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Hedging Designation [Axis]
Hedging Designation [Axis]
Hedging Designation [Domain]
Hedging Designation [Domain]
Not Designated as Hedging Instrument [Member]
Not Designated as Hedging Instrument [Member]
Derivative Instrument Risk [Axis]
Derivative Instrument [Axis]
Derivative Contract Type [Domain]
Derivative Contract [Domain]
MBS with embedded derivatives [Member]
Mortgage Backed Securities with Embedded Derivatives [Member]
Mortgage backed securities with embedded derivatives.
Public company warrants [Member]
Warrant [Member]
Interest rate swaptions [Member]
Interest Rate Swaption [Member]
Fixed-indexed annuities (embedded derivative) [Member]
Fixed-Indexed Annuities (Embedded Derivative) [Member]
Derivatives embedded in fixed-indexed annuity products
Equity index call options [Member]
Equity Index Call Options [Member]
Equity index call options.
Reinsurance contracts (embedded derivative) [Member]
Other Contract [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other investments [Member]
Other Investments [Member]
Annuity benefits accumulated [Member]
Annuity Benefits Accumulated [Member]
Annuity benefits accumulated.
Other liabilities [Member]
Other Liabilities [Member]
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
Derivatives
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Debt Disclosure [Abstract]
Summary showing division of total long term debt
Long-term Debt, Unclassified [Abstract]
Unsecured obligations
Unsecured Debt
Obligations secured by real estate
Long Term Notes Payable Secured by Real Estate
Long term notes payable to banks that are secured by real estate assets.
Other secured borrowings
Secured Debt
Long-term debt
Long-term Debt
Variable Interest Entity, Primary Beneficiary, Does Not Hold Majority Voting Interest, Disclosures [Abstract]
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 (a):
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 (b):
Collateralized Loan Obligations' Earnings (Losses) Attributable To [Abstract]
Collateralized loan obligations' 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.
Noncontrolling interests
Earnings (Losses) of Variable Interest Entities Attributable to Noncontrolling Interests
Earnings (losses) of variable interest entities attributable to noncontrolling interests.
Statement of Cash Flows [Abstract]
Operating Activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net earnings, including noncontrolling interests
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 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
Decrease (Increase) in Reinsurance and Other Receivables
Decrease (increase) 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
Managed Investment Entities Assets And Liabilities
The decrease (increase) 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 Available-for-sale Securities, Debt
Purchases of equity securities
Payments to Acquire Available-for-sale Securities, Equity
Purchases of mortgage loans
Payments to Acquire Mortgage Notes Receivable
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 Available-for-sale Securities
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 Available-for-sale Securities, Debt
Proceeds from sales of equity securities
Proceeds from Sale of Available-for-sale Securities, Equity
Proceeds from sales of subsidiaries
Proceeds from Divestiture of Businesses
Cash and cash equivalents of businesses sold
Cash Divested from Deconsolidation
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
Reductions of long-term debt
Repayments of Long-term Debt
Issuances of managed investment entities’ liabilities
Proceeds From Issuance Of Managed Investment Entities
Proceeds from issuance of managed investment entities.
Retirement 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
Other financing activities, net
Proceeds from (Payments for) Other Financing Activities
Net cash provided by financing activities
Net Cash Provided by (Used in) Financing Activities
Net Change in Cash and Cash Equivalents
Cash and Cash Equivalents, Period Increase (Decrease)
Cash and cash equivalents at beginning of period
Cash and Cash Equivalents, at Carrying Value
Cash and cash equivalents at end of period
Fair Value Disclosures [Abstract]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fixed-indexed annuties (embedded derivative), majority of future years [Member]
Fixed-Indexed Annuities (Embedded Derivative), Majority of Future Years [Member]
Derivatives embedded in fixed-indexed annuties, majority of future years
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum [Member]
Minimum [Member]
Maximum [Member]
Maximum [Member]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Preferred stocks [Member]
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]
Fair Value Measurements (Textual) [Abstract]
Fair Value Measurements (Textual) [Abstract]
Fair Value Measurements.
AFG's internal investment professionals
Number Of Internal Investment Professionals
Number of internal investment professionals.
Number of stocks transferred from Level 2 to Level 1
Number of Stocks Transferred from Level 2 to Level 1
Number of stocks transferred from Level 2 to Level 1.
Number of stocks transferred from Level 2 to Level 1, YTD
Number of Stocks Transferred from Level 2 to Level 1 During the Period
The sum of number of stocks transferred from Level 2 to Level 1 for each applicable quarter end period.
Fair value of assets transferred from Level 2 to Level 1
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount
Fair value of assets transferred from Level 2 to Level 1, YTD
Fair Value, Assets, Level 2 to Level 1 Transfers During the Period, Amount
The sum of amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1 for each applicable quarter end period.
Number of stocks transferred from Level 1 to Level 2
Number of Stocks Transferred from Level 1 to Level 2
Number of stocks transferred from Level 1 to Level 2.
Fair value of assets transferred from Level 1 to Level 2
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount
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.
Percentage of internally developed Level 3 assets to total assets (are less than)
Percentage Of Internally Developed Level Three Assets To Total Assets
Percentage of Internally Developed Level Three Assets to Total Assets.
Percentage of internally developed Level 3 assets to Shareholders' equity (are less than)
Percentage Of Internally Developed Level Three Assets To Shareholders Equity
Percentage of Internally Developed Level 3 Assets to Total Shareholders' Equity
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.
Total realized/unrealized losses included in net income on liabilities still outstanding
Fair Value Measurement with Unobservable Inputs Reconciliation Recurring Basis Liability Gain (Loss) Included in Earnings on Liabilities Still Outstanding
Fair value measurement with unobservable inputs reconciliation recurring basis liability gain (loss) included in earnings on liabilities still outstanding.
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]
Specialty Property and transportation [Member]
Specialty Property And Transportation Insurance [Member]
Specialty Property and transportation.
Specialty casualty [Member]
Specialty Casualty Insurance [Member]
Specialty casualty.
Specialty financial [Member]
Specialty Financial Insurance [Member]
Specialty Financial.
Specialty Other [Member]
Specialty Other Insurance [Member]
Specialty Other Insurance.
Business Segments [Axis]
Segments [Axis]
Segment [Domain]
Segments [Domain]
Property and Casualty Insurance [Member]
Property and Casualty Insurance [Member]
Property and casualty insurance.
Annuity [Member]
Annuity [Member]
Annuity Operations.
Run-off Long-term Care and Life [Member]
Run-off Long-term Care and Life [Member]
Run-off Long-term Care and Life [Member]
Medicare Supplement and Critical Illness [Member]
Medicare Supplement and Critical Illness [Member]
Medicare Supplement and Ctritical Illness [Member]
Other [Member]
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Total premiums earned
Net investment income
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.
Realized gains on securities
Realized losses on subsidiaries
Accounting Policies [Abstract]
Accounting Policies
Significant Accounting Policies [Text Block]
Available for sale fixed maturities and equity securities
Schedule of Available-for-sale Securities Reconciliation [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 cumulative credit portion of other-than-temporary impairments on fixed maturity securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [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]
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.
Gross realized gains and losses on available for sale fixed maturity and equity security investments
Schedule of Realized Gain (Loss) [Table Text Block]
Stockholders' Equity Note [Abstract]
Components of accumulated other comprehensive income
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized holding gains (losses) on securities arising during the period, pretax
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax
Unrealized holding gains (losses) on securities arising during the period, tax
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax
Unrealized holding gains (losses) on securities arising during the period, net of tax
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Unrealized holding gains (losses) on securities arising during the period, attributable to noncontrolling interests
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax, Portion Attributable to Noncontrolling Interest
Net of tax amount of unrealized holding gain (loss) before reclassification adjustments, attributable to noncontrolling interest.
Unrealized holding gains (losses) on securities arising during the period, attributable to shareholders
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax, Portion Attributable to Parent
Net of tax amount of unrealized holding gain (loss) before reclassification adjustments, attributable to the parent entity.
Reclassification adjustment for realized gains (losses) included in net earnings, pretax
Other Comprehensive Income (Loss), Reclassification Adjustment for Realized Gains (Losses) Included in Net Income, before Tax
Pretax reclassification adjustment for gains or losses realized upon the sale and write-down of securities.
Reclassification adjustment for realized gains (losses) included in net earnings, tax
Other Comprehensive Income (Loss), Reclassification Adjustment for Realized Gains (Losses) Included in Net Income, Tax
Tax effect on the reclassification adjustment for gains or losses realized upon the sale and write-down of securities during the period.
Reclassification adjustment for realized gains (losses) included in net earnings, net of tax
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.
Reclassification adjustment for realized gains (losses) included in net earnings, attributable to noncontrolling interests
Other Comprehensive Income (Loss), Reclassification Adjustment for Realized Gains (Losses) Included in Net Income, Net of Tax, Portion Attributable to Noncontrolling Interest
Reclassification adjustment for unrealized gains or losses realized upon the sale and write-down of securities, after tax, attributable to noncontrolling interest.
Reclassification adjustment for realized gains (losses) included in net earnings, attributable to shareholders
Other Comprehensive Income (Loss), Reclassification Adjustment for Realized Gains (Losses) Included in Net Income, Net of Tax, Portion Attributable to Parent
Reclassification adjustment for unrealized gains or losses realized upon the sale and write-down of securities, net of tax, attributable to the parent entity.
Accumulated other comprehensive income, net unrealized gains on securities, beginning balance
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Other comprehensive income, net unrealized gains on securities, pretax
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax
Other comprehensive income, net unrealized gains on securities, tax
Other Comprehensive Income (Loss), Available-for-sale Securities, Tax
Total net unrealized gains (losses) on securities
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Other comprehensive income, net unrealized gains on securities, attributable to noncontrolling interests
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest
Other comprehensive income, net unrealized gains on securities, attributable to shareholders
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Portion Attributable to Parent
Other change in accumulated other comprehensive income, available for sale securities adjustments
Accumulated Other Comprehensive Income Loss, Available For Sale Securities Adjustment, Other Change
Other change in accumulated other comprehensive income on available for sale securities adjustments.
Accumulated other comprehensive income, net unrealized gains on securities, ending balance
Accumulated other comprehensive income, foreign currency translation adjustments, beginning balance
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Other comprehensive income, foreign currency translation adjustments, pretax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax
Other comprehensive income, foreign currency translation adjustments, net of tax
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Other comprehensive income, foreign currency translation adjustments, attributable to noncontrolling interests
Other Comprehensive (Income) Loss, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest
Other comprehensive income, foreign currency translation adjustments, attributable to shareholders
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Other change in accumulated other comprehensive income, foreign currency translation adjustments
Accumulated Other Comprehensive Income Loss, Foreign Currency Translation Adjustment, Other Change
Other change in accumulated other comprehensive income on foreign currency translation adjustments.
Accumulated other comprehensive income, foreign currency translation adjustments, ending balance
Accumulated other comprehensive income, pension and other postretirement plans adjustments, beginning balance
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax
Other comprehensive income, pension and other postretirement plans adjustments, pretax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, before Tax
Other comprehensive income, pension and other postretirement plans adjustments, tax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax
Other comprehensive income, pension and other postretirement plans adjustments, net of tax
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax
Other comprehensive income, pension and other postretirement plans adjustments, attributable to shareholders
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent
Accumulated other comprehensive income, pension and other postretirement plans adjustments, ending balance
Accumulated other comprehensive income, total, beginning balance
Accumulated Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income, total, pretax
Other Comprehensive Income (Loss), before Tax
Other comprehensive income, total, tax
Other Comprehensive Income (Loss), Tax
Other comprehensive income (loss), net of tax
Other Comprehensive Income (Loss), Net of Tax
Other comprehensive income, total, attributable to noncontrolling interests
Other Comprehensive (Income) Loss, Net of Tax, Portion Attributable to Noncontrolling Interest
Other comprehensive income, total, attributable to shareholders
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other change in accumulated other comprehensive income, total
Accumulated Other Comprehensive Income Loss, Other Change
Total other change in accumulated other comprehensive income.
Accumulated other comprehensive income, total, ending balance
Deferred policy acquisition costs [Member]
Deferred Policy Acquisition Costs [Member]
Deferred policy acquisition costs.
Annuity benefits and other liabilities [Member]
Annuity Benefits And Other Liabilities [Member]
Annuity benefits and other liabilities.
Life, accident and health reserves [Member]
Life, accident and health reserves [Member]
Life, accident and health reserves [Member]
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 and Amounts Attributable to Noncontrolling Interests
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
Statutory rate of income taxes
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Tax benefit related to settlement of litigation
Tax Adjustments, Settlements, and Unusual Provisions
Potential decrease in the liability for uncertain tax positions
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
Schedule of Variable Interest Entities [Table]
Schedule of Variable Interest Entities [Table]
Variable Interest Entities [Axis]
Variable Interest Entities [Axis]
Variable Interest Entity, Classification [Domain]
Variable Interest Entity, Classification [Domain]
New Collateralized Loan Obligation Entities formed in 2013 [Member]
New Collateralized Loan Obligation Entities Formed In Two Thousand Thirteen [Member]
New collateralized loan obligation entities formed in two thousand and thirteen.
New Collateralized Loan Obligation Entities formed in 2012 [Member]
New Collateralized Loan Obligation Entities Formed In Two Thousand Twelve [Member]
New collateralized loan obligation entities formed in two thousand and twelve.
Variable Interest Entity [Line Items]
Variable Interest Entity [Line Items]
Assets
Variable Interest Entity, Consolidated, Carrying Amount, Assets
Liabilities
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities
Weighted average common shares adjustment related to stock-based compensation
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Anti-dilutive potential common shares related to stock-based compensation plans
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.
Goodwill and Other Intangibles
Goodwill and Intangible Assets Disclosure [Text Block]
Non-credit related portion of other-than-temporary impairment charges taken for securities still owned
Non Credit Related Portion Of OTTI Charges Taken For Securities Still Owned
Non-credit related portion of other-than-temporary impairment charges taken for securities still owned.
Gross unrealized losses on fixed maturities
Available For Sale Securities Gross Unrealized Loss Accumulated In Investments
Amount of accumulated unrealized loss before deducting unrealized gain on investments in available-for-sale securities impacting investments.
Investments (Textual) [Abstract]
Investments (Textual) [Abstract]
Investments.
Number of available for sale fixed maturities 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.
Other than temporary impairment charges are less than
Average life of ABS
Asset-Backed Securities Average Useful Life
Asset-backed securities average useful llfe.
Average life of MBS
Mortgage Backed Securities Average Useful Life
Mortgage backed securities average useful life.
Percentage increase in shareholders' equity
Investments In Individual Issuers As Percentage Of Shareholders Equity
Investments in individual issuers as percentage of shareholders equity.
Realized gain (loss) from the mark-to-market of certain MBS (less than in first nine months of 2013)
Realized Gain (Loss) From Mark to Market of Certain Mortgage Backed Securities
Realized gain (loss) from mark to market of certain mortgage backed securities.
Fixed Maturity [Member]
The scheduled maturities of available for sale fixed maturities
Available-for-sale Securities, Debt Maturities [Abstract]
Fixed maturities amortized cost, One year or less
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis
Fixed maturities fair value, One year or less
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value
Fixed maturities fair value, One year or less, Percent
Available For Sale Securities Debt Maturities Within One Year Fair Value Percent
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value, Percent.
Fixed maturities amortized cost, After one year through five years
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Amortized Cost Basis
Fixed maturities fair value, After one year through five years
Available-for-sale Securities, Debt Maturities, Year Two Through Five, Fair Value
Fixed maturities fair value, After one year through five years, Percent
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.
Fixed maturities amortized cost, After five years through ten years
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis
Fixed maturities fair value, After five years through ten years
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value
Fixed maturities fair value, After five years through ten years, Percent
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.
Fixed maturities amortized cost, After ten years
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis
Fixed maturities fair value, After ten years
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value
Fixed maturities fair value, After ten years, Percent
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 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.
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.
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.
Fixed maturities amortized cost, ABS
Available for Sale Securities ABS Amortized Cost
Asset-backed securities, amortized cost.
Fixed maturities fair value, ABS
Available for Sale Securities ABS Fair Value
Asset-backed securities, fair value.
Fixed maturities fair value, ABS, Percent
Available for Sale Securities ABS Fair Value Percent
Asset-backed securities, fair value, percent.
Fixed maturities amortized cost, MBS
Available for Sale Securities MBS Amortized Cost
Mortgage-backed securities, amortized cost.
Fixed maturities fair value, MBS
Mortgage-backed Securities Available-for-sale, Fair Value Disclosure
Fixed maturities fair value, MBS, Percent
Available for Sale Securities MBS Fair Value Percent
Mortgage-backed securities, fair value, percent.
Amortized Cost
Available-for-sale Securities, Amortized Cost Basis
Fair Value
Available-for-sale Securities
Fair value, Total, Percent
Available For Sale Securities Debt Maturities Fair Value Percent
Available-for-sale Securities, Debt Maturities, Fair Value, Total, Percent.
Statement of Financial Position [Abstract]
Fixed maturities, available for sale at amortized cost
Available-for-sale Debt Securities, Amortized Cost Basis
Equity securities, at cost
Equity Securities, at Cost
For an unclassified balance sheet, this item represents investments in common and preferred stocks and other forms of securities that provide ownership interests in a corporation. This disclosure reflects the value of the equity securities at cost, adjusted for other than temporary impairments, where applicable.
Common Stock, par value (USD per share)
Common Stock, No Par Value
Common Stock, shares authorized
Common Stock, Shares Authorized
Common Stock, shares outstanding
Common Stock, Shares, Outstanding
Shareholders' Equity
Stockholders' Equity Note Disclosure [Text Block]
Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table]
Derivative Instruments, Gain (Loss) [Table]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) [Line Items]
Derivatives (Textual) [Abstract]
Derivatives (Textual) [Abstract]
Derivatives.
Notional amount of pay-fixed interest rate swaptions
Derivative Asset, Notional Amount
Payments to purchase swaptions
Cumulative Payments to Purchase Derivatives
Cumulative life-to-date payments (inlcuding payments made in prior years) to purchase derivatives that have not matured.
Indexed annuities as a percentage of annuity benefits
Indexed Annuities as a Percentage of Annuity Benefits
Indexed annuities as a percentage of annuity benefits.
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]
Commitments and Contingencies Disclosure [Abstract]
Contingencies
Commitments and Contingencies Disclosure [Text Block]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
9-7/8% Senior Notes due June 2019 [Member]
Senior Notes Due In June 2019 [Member]
Senior Notes due in June 2019.
6-3/8% Senior Notes due June 2042 [Member]
Senior Notes Due In June 2042 [Member]
Senior Notes due June 2042
5-3/4% Senior Notes due August 2042 [Member]
Senior Notes Due In August 2042 [Member]
Senior Notes Due In August 2042 [Member]
7% Senior Notes due September 2050 [Member]
Senior Notes Due In September 2050 [Member]
Senior Notes due in September 2050.
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
AFG [Member]
Parent Company [Member]
National Interstate [Member]
National Interstate [Member]
National Interstate.
Minimum [Member]
Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Scheduled principal payments on debt in 2013 (are less than)
Long Term Debt Maturities Repayments Of Principal In Calendar Year One
Amount of long-term debt maturing within the first full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
Scheduled principal payments on debt in 2014
Long Term Debt Maturities Repayments Of Principal In Calendar Year Two
Amount of long-term debt maturing within the second full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
Scheduled principal payments on debt in 2015
Long Term Debt Maturities Repayments Of Principal In Calendar Year Three
Amount of long-term debt maturing within the third full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
Scheduled principal payments on debt in 2016
Long Term Debt Maturities Repayments Of Principal In Calendar Year Four
Amount of long-term debt maturing within the fourth full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
Scheduled principal payments on debt in 2017
Long Term Debt Maturities Repayments Of Principal In Calendar Year Five
Amount of long-term debt maturing within the fifth full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
Scheduled principal payments on debt in 2018
Long Term Debt Maturities Repayments Of Principal In Calendar Year Six
Amount of long-term debt maturing within the sixth full calendar year following the date of the latest balance sheet presented in the financial statements, which may include maturities of long-term debt, sinking fund requirements and other securities redeemable at fixed or determinable prices and dates.
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 AFG revolving credit facility
Line of Credit Facility, Amount Outstanding
Loans payable under National Interstate bank credit facility
Loans Payable to Bank
Interest rate description for revolving credit facility
Line of Credit Facility, Interest Rate Description
Stated interest rate, percentage
Debt Instrument, Interest Rate, Stated Percentage
Secured Borrowings guaranteed by AFG
Guarantor Obligations, Current Carrying Value
Deferred Policy Acquisition Costs Disclosures [Abstract]
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]
Other Lines [Member]
Other Lines [Member]
Other lines.
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.
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.
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 and liabilities
Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block]
Fair value assets and liabilities measured on recurring basis unobservable input reconciliation.
Fair value of financial instruments
Fair Value, by Balance Sheet Grouping [Table Text Block]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table]
Disposal Group Name [Axis]
Disposal Group Name [Axis]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Disposal Groups, Including Discontinued Operations, Name [Domain]
Medicare supplement and critical illness businesses [Member]
Disposal Groups, Including Discontinued Operations, Medicare Supplement and Critical Illness Businesses [Member]
Disposal Groups, Including Discontinued Operations, Medicare Supplement and Critical Illness Businesses [Member]
Small annuity and supplemental insurance company [Member]
Disposal Groups, Including Discontinued Operations, Small Annuity and Supplemental Insurance Company [Member]
Disposal Groups, Including Discontinued Operations, Small Annuity and Supplemental Insurance Company [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of undisclosed insurance companies sold
Number of Undisclosed Insurance Companies Sold
The number of undisclosed insurance companies sold by the entity during the period.
Sale proceeds
Disposal Group, Proceeds from Divestiture of Businesses
The sale proceeds associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.
Pretax gain on sale of subsidiaries
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal
Percentage of interest acquired in a subsidiary
Percentage of Interest Acquired in Subsidiaries
The percentage of interest acquired in subsidiaries during the period.
Purchase of interest not already owned in a subsidiary
Payments to Acquire Additional Interest in Subsidiaries
Reconciliation of income taxes at the statutory rate to the provision for income taxes shown in the Statement of Earnings
Effective Income Tax Rate Reconciliation, Amount [Abstract]
Earnings before income taxes (“EBT”)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest
Income taxes at statutory rate
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
Income taxes at statutory rate as a percentage of EBT
Effect of tax exempt interest
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount
Effect of tax exempt interest as a percentage of EBT
Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent
Effect of losses of managed investment entities
Income Tax Reconciliation Nondeductible Losses Of Managed Investment Entities
The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations that is attributable to nondeductible losses of managed investment entities.
Effect of losses of managed investment entities as a percentage of EBT
Effective Income Tax Rate Reconciliation, Nondeductible Losses Of Managed Investment Entities
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to nondeductible losses of managed investment entities.
Effect of subsidiaries not in AFG's tax return
Income Tax Reconciliation Subsidiaries Not In Company's Tax Return
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to tax on the equity in earnings (losses) of less than 80%-owned subsidiaries not included in AFG's consolidated tax return.
Effect of subsidiaries not in AFG's tax return as a percentage of EBT
Effective Income Tax Rate Reconciliation, Subsidiaries Not In Company's Tax Return
The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the less than 80%-owned subsidiaries not included in AFG's consolidated tax return.
Effect of tax case resolution
Effect of tax case resolution as a percentage of EBT
Effective Income Tax Rate Reconciliation, Tax Case Resolution
Percentage of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.
Effect of other income tax reconciliation
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
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
Provision for income taxes as shown on the Statement of Earnings as a percentage of EBT
Effective Income Tax Rate Reconciliation, Percent
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Stock Incentive Plan [Member]
Stock Compensation Plan [Member]
Annual Equity Bonus Plan [Member]
Annual Equity Bonus Plan [Member]
Annual Equity Bonus Plan.
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
Stock Issued During Period, Shares, Restricted Stock Award, Gross
Restricted Common Stock, fair value per share
Restricted Common Stock Issued Fair Value Per Share
Restricted Common Stock issued, fair value per share.
Common Stock options issued under stock incentive plan
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures
Common Stock options issued under stock incentive plan, average exercise price
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Other benefit plans, shares
Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures
Common Stock issued, fair value per share
Common Stock Issued During Period Fair Value Per Share
Common stock issued during period, fair value per share.
Compensation expense related to stock incentive plans
Allocated Share-based Compensation Expense
Stockholders' Equity (Textual) [Abstract]
Stockholders' Equity (Textual) [Abstract]
Stockholders equity.
Net of tax unrealized gains (losses) related to credit-only impaired securities
Net Of Tax Unrealized Gains Losses On Credit Only Impaired Securities
The net of tax unrealized gains or losses related to securities for which only the credit portion of an other-than-temporary impairment has been recorded in earnings.
Fair value per share of options granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value
Expected dividend yield
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate
Expected volatility
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate
Expected term (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term
Risk-free rate
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate
Payable To Subsidiary Trusts [Member]
Payable To Subsidiary Trusts [Member]
Payable to subsidiary trusts.
Subsidiaries [Member]
Subsidiaries [Member]
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.
Senior Notes
Senior Notes
Other long-term debt
Other Long-term Debt
Notes payable secured by real estate due 2013 through 2016
Secured borrowings ($16 guaranteed by AFG)
National Interstate bank credit facility
AAG Holding Variable Rate Subordinated Debentures
Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust
Not Designated as Hedging Instrument [Member]
Income Statement Location [Axis]
Income Statement Location [Axis]
Income Statement Location [Domain]
Income Statement Location [Domain]
Realized gains on securities [Member]
Realized Gains (Losses) On Securities [Member]
Primary financial statement caption encompassing realized gains (losses) on securities.
Annuity benefits [Member]
Annuity benefits [Member]
Primary financial statement caption encompassing annuity benefits expense.
Net investment income [Member]
Investment Income [Member]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative, Gain (Loss) on Derivative, Net [Abstract]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net
Derivative, Gain (Loss) on Derivative, Net
Available for sale fixed maturities and equity securities
Available For Sale Fixed Maturities And Equity Securities [Abstract]
Available for sale fixed maturities and equity securities.
Fair Value
Gross Unrealized, Gains
Available For Sale Securities Gross Unrealized Gain Accumulated In Investments
Amount of accumulated unrealized gain before deducting unrealized loss on investments in available-for-sale securities impacting investments.
Gross Unrealized, Losses
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Other Lines [Member]
Loss Contingency Nature [Axis]
Loss Contingency Nature [Axis]
Loss Contingency, Nature [Domain]
Loss Contingency, Nature [Domain]
Insurance-related Assessments [Member]
Insurance-related Assessments [Member]
Segments of Operations (Textual) [Abstract]
Segments of Operations (Textual) [Abstract]
Segments of Operations.
Number of segments
Number of Reportable Segments
Special charges to increase asbestos and environmental reserves
Special Charges To Increase Asbestos And Environmental Reserves
Special charges to increase asbestos and environmental reserves.
Charge for guaranty fund assessments for the insolvency and liquidation of an unaffiliated life insurance company
Loss Contingency, Loss in Period
Earnings (losses) of managed investment entities attributable to noncontrolling interests
Loss on retirement of debt
Gains (Losses) on Extinguishment of Debt
Charge for a labor matter related to former operations
Charge for Labor Matter Related to Former Operations
Charge for a labor matter related to former operations.
Schedule of long-term debt instruments
Schedule of Long-term Debt Instruments [Table Text Block]
Summary of secured and unsecured long-term debt
Summary of Secured and Unsecured Long-Term Debt [Table Text Block]
Summary of secured and unsecured long-term debt.
Statement of Stockholders' Equity [Abstract]
Statement [Table]
Statement [Table]
Statement, Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Common Shares
Common Stock and Capital Surplus
Common Stock Including Additional Paid in Capital [Member]
Retained Earnings Approp.
Retained Earnings, Appropriated [Member]
Retained Earnings Unapprop.
Retained Earnings, Unappropriated [Member]
Accumulated Other Comprehensive Inc. (Loss)
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Parent [Member]
Noncontrolling Interests
Noncontrolling Interest [Member]
Statement [Line Items]
Statement [Line Items]
Beginning Balance, shares
Beginning Balance
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Net earnings
Other comprehensive income
Allocation of losses of managed investment entities
Allocation of Losses of Managed Investment Entities
Allocation of losses of managed investment entities.
Dividends on Common Stock
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
Other benefit plans
Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures
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
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition
Shares acquired and retired, shares
Stock Repurchased and Retired 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.
Other
Stockholders' Equity, Other
Ending Balance, shares
Ending Balance
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Subordinated Debt Obligations [Member]
Subordinated Debt Obligations [Member]
Senior Debt Obligations [Member]
Senior Debt Obligations [Member]
Variable Interest Entities by Classification of Entity [Axis]
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity, Primary Beneficiary [Member]
New CLO Formed in April 2013 [Member]
New Collateralized Loan Obligation Entities Formed In April Two Thousand Thirteen [Member]
New collateralized loan obligation entities formed in April two thousand and thirteen.
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 liabilities
Face Value Of Liabilities Issued By Variable Interest Entity
Face value of liabilities issued by variable interest entity.
Face amount of liabilities purchased by subsidiaries of AFG
Debt Instrument Face Amount Of Liabilities Purchased By Subsidiaries
Debt instrument face amount of liabilities purchased by subsidiaries.
Purchased CLO senior debt, face amount
Purchased CLO Senior Debt Face Amount
Purchased CLO senior debt face amount.
Purchased CLO senior debt, purchase price
Purchased CLO Senior Debt Purchase Price
Purchased CLO senior debt purchase price.
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 fair 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 CLO 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.
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.
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]
US Treasury and Government [Member]
All other corporate [Member]
Corporate Debt Securities [Member]
Trading fixed maturities [Member]
Trading fixed maturities [Member]
Trading fixed maturities.
Assets of Managed Investment Entities [Member]
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]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [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
Fair Value Measurements
Fair Value Disclosures [Text Block]
Loss Contingencies [Table]
Loss Contingencies [Table]
Settlement of a significant asbestos claim [Member]
Settlement of a significant asbestos claim [Member]
Settlement of a significant asbestos claim.
Loss Contingencies [Line Items]
Loss Contingencies [Line Items]
Settlement of an asbestos claim in the property and casualty operations
Liability for Asbestos and Environmental Claims, Gross, Claims Paid
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis]
Measurement Basis [Axis]
Fair Value, Disclosure Item Amounts [Domain]
Fair Value Measurement [Domain]
Carrying Value [Member]
Reported Value Measurement [Member]
Fair Value [Member]
Estimate of Fair Value Measurement [Member]
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value, Measurements, Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Level 1 [Member]
Fair Value, Inputs, Level 1 [Member]
Level 2 [Member]
Fair Value, Inputs, Level 2 [Member]
Level 3 [Member]
Fair Value, Inputs, Level 3 [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
Mortgage loans
Mortgage Loans on Real Estate, Commercial and Consumer, Net
Policy loans
Loans, Gross, Insurance Policy
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.
Long-term debt
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.
Basis of Presentation
Basis of Accounting [Text Block]
Accounting Standards Adopted in 2013
Accounting Standards Adopted In Current Year [Policy Text Block]
Accounting standards adopted in current year.
Fair Value Measurements
Fair Value of Financial Instruments, Policy [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.
Variable Annuity Assets and Liabilities
Policyholder Accounts, Policy [Policy Text Block]
Premium Recognition
Insurance Premiums Revenue Recognition, Policy [Policy Text Block]
Noncontrolling Interests
Noncontrolling Interests [Policy Text Block]
Describes an entity's accounting policy for determining noncontrolling interests.
Income Taxes
Income Tax, Policy [Policy Text Block]
Stock-Based Compensation
Share-based Compensation, Option and Incentive Plans Policy [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.
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.
Assets:
Assets [Abstract]
Investments:
Investments [Abstract]
Fixed maturities, available for sale at fair value (amortized cost — $24,436 and $22,083)
Available-for-sale Securities, Debt Securities
Fixed maturities, trading at fair value
Trading Securities, Debt
Equity securities, at fair value (cost — $956 and $778)
Marketable Securities, Equity Securities
Real estate and other investments
Real Estate and Other Investments
Real estate and other investments.
Total cash and investments
Investments and Cash
Recoverables from reinsurers
Reinsurance Recoverables
Prepaid reinsurance premiums
Prepaid Reinsurance Premiums
Agents’ balances and premiums receivable
Premiums Receivable, Net
Deferred policy acquisition costs
Deferred Policy Acquisition Costs and Value of Business Acquired
Assets of managed investment entities
Other receivables
Other Receivables
Variable annuity assets (separate accounts)
Separate Account Assets
Other assets
Other Assets
Total assets
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
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
Variable annuity liabilities (separate accounts)
Separate Accounts, Liability
Other liabilities
Other Liabilities
Total liabilities
Liabilities
Shareholders’ equity:
Stockholders' Equity Attributable to Parent [Abstract]
Common Stock, no par value — 200,000,000 shares authorized — 89,223,607 and 88,979,303 shares outstanding
Common Stock, Value, Issued
Capital surplus
Additional Paid in Capital, Common Stock
Retained earnings:
Retained Earnings (Accumulated Deficit) [Abstract]
Appropriated — managed investment entities
Retained Earnings, Appropriated
Unappropriated
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
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Liability Class [Axis]
Liability Class [Axis]
Fair Value by Liability Class [Domain]
Fair Value by Liability Class [Domain]
Liabilities of Managed Investment Entities [Member]
Liability of Managed Investment Entities [Member]
Liability Of Managed Investment Entities.
Embedded derivatives [Member]
Embedded derivatives [Member]
Embedded derivatives.
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 Reconciliations, 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
Annuity and Other [Member]
Annuity and Other [Member]
Annuity and other.
Summary of deferred policy acquisition costs
Deferred Policy Acquisition Costs and Value of Business Acquired [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 Costs, Net
Deferred policy acquisition costs, additions
Deferred Policy Acquisition Costs, Additions
Deferred policy acquisition costs, periodic amortization
Deferred Policy Acquisition Costs, Amortization Expense, Periodic Amortization
Deferred Policy Acquisition Costs, Amortization Expense, Periodic Amortization
Deferred policy acquisition costs, change included in realized gains
Deferred Policy Acquisition Cost, Amortization Expense, Net Investment Gains (Losses)
Deferred policy acquisition costs, sale of subsidiaries
Deferred Policy Acquisition Cost, Sale of Subsidiary
The decrease in deferred policy acquisition costs due to sales of subsidiaries.
Deferred policy acquisition costs, foreign currency translation
Deferred Policy Acquisition Costs, Foreign Currency Translation
Deferred Policy Acquisition Costs, Foreign Currency Translation.
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 Sales Inducements, Net
Deferred sales inducements, additions
Deferred Sales Inducements, Additions
Deferred sales inducements, periodic amortization
Deferred Sales Inducements, Amortization Expense
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
Present value of future profits, periodic amortization
Present Value of Future Insurance Profits, Amortization Expense
Present value of future profits, sale of subsidiaries
Present Value of Future Insurance Profits, Sale of Subsidiary
The decrease in present value of future profits due to sales of subsidiaries.
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 Gains (Losses)
The impact of unrealized investment gains and losses on deferred policy acquisition costs and value of business acquired.
Unrealized investment gains (losses), change in unrealized
Deferred Policy Acquisition Costs and Value of Business Acquired, Unrealized Investment Gains (Losses), Change in Unrealized
Adjustment to deferred policy acquisition costs and present value of future profits due to unrealized investment gains (losses).
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 Profits, Additions
Deferred policy acquisition costs and present value of future profits, periodic amortization
Deferred Policy Acquisition Costs and Present Value of Future 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, sale of subsidiaries
Deferred Policy Acquisition Costs and Present Value of Future Profits, Sale of Subsidiary
The decrease in deferred policy acquisition costs and present value of future profits due to sales of subsidiaries.
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 to deferred policy acquisition costs and present value of future profits due to 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 Gains (Losses)
Adjustment to deferred policy acquisition costs and present value of future profits due to unrealized investment gains (losses).
Deferred policy acquisition costs and present value of future profits, 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]
Segments of Operations
Segment Reporting Disclosure [Text Block]
Summarized financial information
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]
Segment Reporting Information, by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
The credit portion of other-than-temporary impairments on fixed maturity securities, non-credit portion of an impairment has been recognized in other comprehensive income (loss)
Credit Portion Of Other Than Temporary Impairments On Fixed Maturity Securities Non Credit Portion Of Impairment Has Been Recognized In Other Comprehensive Income Loss [Abstract]
The credit portion of other-than-temporary impairments on fixed maturity securities, non-credit portion of an impairment has been recognized in other comprehensive income (loss).
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning Balance
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held
Additional credit impairments on:
Additional Credit Impairments On Securities And Its Adjustments [Abstract]
Additional credit impairments on securities and Its adjustments.
Previously impaired securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, Additional Credit Losses
Securities without prior impairments
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment
Reductions — disposals
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold
Ending Balance
Selected financial information related to collateralized loan obligations
Schedule of Variable Interest Entities [Table Text Block]
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]
Total AFS securities
Trading fixed maturities
Trading Securities
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.
Other investments — derivatives
Other Investments, Fair Value Disclosure
Fair value portion of other investment securities including derivative financial instruments.
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 and other liabilities
Total liabilities accounted for at fair value
Financial and Nonfinancial Liabilities, Fair Value Disclosure
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.
Schedule of Stock by Class [Table]
Schedule of Stock by Class [Table]
Voting Preferred Stock [Member]
Voting Preferred Stock [Member]
Voting preferred stock.
Nonvoting Preferred Stock [Member]
Nonvoting Preferred Stock [Member]
Nonvoting preferred stock.
Class of Stock [Line Items]
Class of Stock [Line Items]
Preferred Stock, par value
Preferred Stock, No Par Value
Preferred Stock, shares authorized
Preferred Stock, Shares Authorized
Components of accumulated other comprehensive income (loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Fair Value Inputs, Assets, Quantitative Information [Table]
Fair Value Inputs, Assets, Quantitative Information [Table]
Embedded derivatives [Member]
Embedded Derivative Financial Instruments [Member]
Fair Value Inputs, Liabilities, Quantitative Information [Line Items]
Fair Value Inputs, Liabilities, Quantitative Information [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.
Adjustment for insurance subsidiary's credit risk
Fair Value Inputs, Entity Credit Risk
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.
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.
Mortgage Loans and Other Investments [Member]
Mortgage Loans And Other Investments [Member]
Mortgage loans and other investments.
Other [Member]
Other Credit Derivatives [Member]
Tax Effects [Member]
Tax Effects [Member]
Tax effects.
Noncontrolling Interests [Member]
Marketable Securities [Member]
Marketable Securities [Member]
Marketable 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.
Realized before impairments
Realized — impairments
Change in unrealized
Change In Unrealized Appreciation Depreciation
Change in unrealized appreciation depreciation.
Long-Term Debt
Long-term Debt [Text Block]
Total revenues
Disposal Group, Including Discontinued Operation, Revenue
Total costs and expenses
Disposal Group, Including Discontinued Operation, Operating Expense
Earnings before income taxes
Disposal Group, Including Discontinued Operation, Operating Income (Loss)
Statement of Comprehensive Income [Abstract]
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), Available-for-sale Securities Adjustment, Net of Tax [Abstract]
Unrealized holding gains (losses) on securities arising during the period
Reclassification adjustment for realized gains included in net earnings
Reclassification adjustment for unrealized gains of subsidiaries sold
Other Comprehensive Income (Loss), Reclassification Adjustment for Unrealized Gains of Subsidiaries Sold
Net of tax amount of the income statement impact of the reclassification adjustment for unrealized gains (losses) realized upon the sale of subsidiaries.
Foreign currency translation adjustments
Pension and other postretirement plans adjustments
Total comprehensive income, 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 attributable to shareholders
Comprehensive Income (Loss), Net of Tax, Attributable to Parent