Loans in process of foreclosure Mortgage Loans in Process of Foreclosure, Amount Debt-to-Value [Axis] Debt-to-Value [Axis] Trade and notes receivables, net of allowance for credit losses of $32 as of September 30, 2024 and December 31, 2023 Trade and notes receivables, net of allowance Accounts and Financing Receivable, after Allowance for Credit Loss Term of contract, term three Derivative, Term Of Contract, Term Three Derivative, Term Of Contract, Term Three Adjustments to reconcile net earnings to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Repayment of principal borrowed Repayments of Long-Term Debt Cover [Abstract] Cover [Abstract] Net increase in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Revenue Recognition, Other Revenue Recognition, Other, Policy [Policy Text Block] Revenue Recognition, Other, Policy Discount rate Measurement Input, Discount Rate [Member] Fixed maturity securities, available-for-sale securities, allowance for credit losses Allowance for Expected Credit Losses Debt Securities, Available-for-Sale, Allowance for Credit Loss, Excluding Accrued Interest Current (less than 30 days past due) Current (less than 30 days past due) Financial Asset, 1 to 29 Days Past Due [Member] Ownership interests acquired Business Acquisition, Percentage of Voting Interests Acquired Trading Symbol Trading Symbol Greater than 1.25 Greater Than One Point Two Five [Member] Greater Than One Point Two Five [Member] Net realized/unrealized gains (losses) on equity securities and gains (losses) on preferred securities Equity Securities, FV-NI, Realized Gain (Loss) Comprehensive earnings Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total liabilities assumed and non-controlling interests Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Liabilities And Non-Controlling Interests Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Liabilities And Non-Controlling Interests Total asset derivatives Fair Value Derivative Asset, Subject to Master Netting Arrangement, before Offset Non-NEOs Non-NEOs [Member] Cash dividend per common share (in usd per share) Common Stock, Dividends, Per Share, Declared (Gain) loss on sales of investments and other assets and asset impairments, net Gain (Loss) On Investments And Disposition Of Other Assets Gain (Loss) On Investments And Disposition Of Other Assets 2028 Present Value of Future Insurance Profits, Expected Amortization, Year Four Permitted practice, statutory surplus Statutory Accounting Practices, Permitted Practice, Statutory Surplus, Amount Statutory Accounting Practices, Permitted Practice, Statutory Surplus, Amount Black Scholes model Black Scholes Model [Member] Black Scholes Model [Member] Subsidiary dividends declared to non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Beginning balance of original discount rate Ending Balance at original discount rate Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Cash Flow and Reinsurance Short term investments Short-Term Investments [Member] Derivative, strike price Derivative, Price Risk Option Strike Price Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Contractholder account withdrawals Repayments of Annuities and Investment Certificates Net (increase) decrease in trade receivables Increase (Decrease) in Accounts Receivable Earnings Per Share Earnings Per Share, Policy [Policy Text Block] VOBA Movement in Present Value of Future Insurance Profits [Roll Forward] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Net earnings (loss) from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Exercise of stock options Proceeds from Stock Options Exercised Commercial mortgage loans Commercial Mortgage Loans [Member] Commercial Mortgage Loans Unrealized gain (loss) on investments and other financial instruments (excluding investments in unconsolidated affiliates) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Award Timing Disclosures [Line Items] Hotel Hotel [Member] Balance, beginning of year Balance, end of period Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change Financial Asset, Period Past Due [Axis] Financial Asset, Aging [Axis] Change in fair value of reinsurance related embedded derivatives Change in fair value of derivatives Derivative, Gain (Loss) on Derivative, Net Investment, Name [Domain] Investment, Name [Domain] Schedule of Allowance for Expected Credit Losses on Loans Financing Receivable, Allowance for Credit Loss [Table Text Block] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Axis] Trademarks, tradenames, and other Definite lived trademarks, tradenames, and other Trademarks, Tradenames And Other [Member] Trademarks, Tradenames And Other Number of class action lawsuits Loss Contingency, Pending Claims, Number Term of contract, term two Derivative, Term Of Contract, Term Two Derivative, Term Of Contract, Term Two Revenue from Contract with Customer [Abstract] Commercial mortgage loans, percentage of investments Commercial Mortgage Loans, Percentage of Investments Commercial Mortgage Loans, Percentage of Investments East South Central East South Central [Member] East South Central [Member] United States UNITED STATES Prior Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Secured trust deposits Contract With Customer, Liability, Customer Deposits Contract With Customer, Liability, Customer Deposits Operating Segments Operating Segments [Member] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Effect of changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Future Policy Benefit, before Tax Award Timing Method Award Timing Method [Text Block] Agency title insurance premiums Insurance Contracts, Agency Title Insurance Premiums [Member] Insurance Contracts, Agency Title Insurance Premiums [Member] Subtotal, Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Dilution from share issuance by consolidated sub Dilution From Share Issuance By Consolidated Subsidary Dilution From Share Issuance By Consolidated Subsidary Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Market risk benefits asset Market Risk Benefit Asset [Member] Market Risk Benefit Asset Reinsured Reinsured [Member] Reinsured Revenue Recognition and Deferred Revenue [Abstract] Counterparties, collateral required threshold Derivatives, Collateral, Net Exposure Threshold for Which Collateral Required Derivatives, Collateral, Net Exposure Threshold for Which Collateral Required Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Total Loans Total Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Insider Trading Policies and Procedures [Line Items] Change in Unrealized Gains (Losses) Included in OCI Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Other Other Products And Services [Member] Other Products And Services [Member] Adjustment to Compensation, Amount Adjustment to Compensation Amount Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted [Abstract] Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted [Abstract] Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted Additional paid-in capital Additional Paid in Capital, Common Stock Compensation Amount Outstanding Recovery Compensation Amount Other Other Long-term Debt [Member] Other Long-term Debt Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Entity Small Business Entity Small Business Company Selected Measure Amount Company Selected Measure Amount West South Central West South Central US [Member] West South Central US [Member] Tabular List, Table Tabular List [Table Text Block] Revolving Credit Facility Revolving Credit Facility Due October 2025 [Member] Revolving Credit Facility Due October 2025 Level 3 Fair Value, Inputs, Level 3 [Member] Title plants Intangible Assets, Title Plants Intangible Assets, Title Plants 5.50% F&G Notes, net of discount 5.50% F&G Senior Notes 5.50% F&G Senior Notes due May 2025 [Member] 5.50% F&G Senior Notes due May 2025 % of Total % of Total Financing Receivable, before Allowance for Credit Loss, to Total, Percent Unrealized gains (losses) on certain derivative instruments Unrealized Gain (Loss) on Derivatives Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Estimated litigation liability Estimated Litigation Liability Antidilutive securities excluded from computation of EPS, less than in 2023 (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Total net investment gains (losses) Total Derivatives, Net [Member] Total Derivatives, Net Credit Facility [Domain] Credit Facility [Domain] Beginning balance Ending balance of claim loss reserve for title insurance Liability for Claims and Claims Adjustment Expense Less: reinsured market risk benefits Market Risk Benefit, Reinsurance Recoverable, after Allowance 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] Loan subservicing revenue Fees and Commissions, Mortgage Banking and Servicing Liabilities and noncontrolling interests assumed Noncash Or Part Noncash Acquisition, Liabilities Assumed And Noncontrolling Interest Noncash Or Part Noncash Acquisition, Liabilities Assumed And Noncontrolling Interest Schedule of Reinsurance Recoverable Expected Credit Loss Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] Goodwill Goodwill Goodwill Other comprehensive earnings (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Residential Mortgage Loans Residential Portfolio Segment [Member] Noncontrolling interest associated with current period acquisitions Noncontrolling Interest, Increase from Business Combination Industrial Industrial, General [Member] Industrial, General [Member] Employee Stock Option Share-Based Payment Arrangement, Option [Member] DSC ratio, amortization period Debt Service Coverage Ratio, Amortization Period Debt Service Coverage Ratio, Amortization Period Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] Comprehensive earnings attributable to Fidelity National Financial, Inc. common shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Amortized Cost of Non-Accrual Loans [Abstract] Amortized Cost of Non-Accrual Loans [Abstract] Amortized Cost of Non-Accrual Loans Repayments of all outstanding indebtedness under term loan credit agreement Repayments of Lines of Credit Schedule of Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Award Type Award Type [Axis] Corporates Corporates Corporate Debt Securities [Member] Schedule of Policyholder Account Balance, Guaranteed Minimum Crediting Rate Policyholder Account Balance, Guaranteed Minimum Crediting Rate [Table Text Block] PALH LLC PALH LLC [Member] PALH LLC Liabilities, Total (Losses) Gains Included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Schedule of Balances and Changes in Market Risk Benefit Market Risk Benefit, Activity [Table Text Block] Property and equipment, net Property, Plant and Equipment, Net Repayments of debt Repayments of Debt Total liabilities Liabilities Non-controlling interests Equity, Attributable to Noncontrolling Interest 75.00% to 84.99% LTV 75 to 84.99 Percent [Member] LTV 75 to 84.99 Percent Reinsurance agreement, recognized gains (losses) Reinsurance Agreement, Recognized Gains (Losses) Reinsurance Agreement, Recognized Gains (Losses) Deferred sales inducements Deferred Sales Inducements, Paid Deferred Sales Inducements, Paid Common stock, par or stated value per share (in usd per share) Common Stock, Par or Stated Value Per Share Interest and investment income, including recognized gains and losses, net Net Investment Income, And Gain (Loss) On Investments Net Investment Income, And Gain (Loss) On Investments Estimated Useful Life Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Revolving Credit Facility Revolving Credit Facility [Member] Expiration Date Trading Arrangement Expiration Date Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Reinsurer, Name [Axis] Reinsurer, Name [Axis] Issuance of preferred stock Proceeds from Issuance of Convertible Preferred Stock Value of distribution asset Value Of Distribution Asset [Member] Value Of Distribution Asset Market risk benefits liability Market Risk Benefit Liability [Member] Market Risk Benefit Liability Investment in unconsolidated affiliates Equity Method Investments, Fair Value Disclosure Total Shareholder Return Amount Total Shareholder Return Amount Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] Liability for Future Policy Benefit, Expected Net Premium [Roll Forward] Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Short-term investments Other Short-Term Investments Total consideration Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held before Combination Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Schedule of Sources of Net Investment Income Reported Schedule of Sources of Net Investment Income Reported [Table Text Block] Schedule of Sources of Net Investment Income Reported Gross gains Debt Securities, Available-for-Sale, Realized Gain Other assets Other Assets, Fair Value Disclosure Subsequent Event [Line Items] Subsequent Event [Line Items] Net decrease in reserve for title claim losses Increase (Decrease) in Liability for Claims and Claims Adjustment Expense Reserve Exercise of stock options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Pacific Pacific US [Member] Pacific US [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Issuances Liability for Future Policy Benefit, Expected Future Policy Benefit, Issuance Liability for Future Policy Benefit, Activity [Line Items] Liability for Future Policy Benefit, Activity [Line Items] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Axis] Basis of Financial Statements Basis of Accounting, Policy [Policy Text Block] Other comprehensive (loss) earnings- unrealized (loss) gain on investments and other financial instruments OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Weighted average common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Net premiums collected Liability for Future Policy Benefit, Expected Net Premium, Net Premium Collected Jurisdiction [Axis] Statutory Accounting Practice, Jurisdiction [Axis] Statutory Accounting Practices [Line Items] Statutory Accounting Practices [Line Items] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total Fidelity National Financial, Inc. shareholders’ equity Equity, Attributable to Parent Treasury stock, 56 shares as of September 30, 2024 and December 31, 2023, at cost Treasury Stock, Value Immediate annuities DPL Immediate Annuity Deferred Profit Liability [Member] Immediate Annuity Deferred Profit Liability Schedule of Rollforward of Value of Business Acquired Schedule Of Value Of Business Acquired [Table Text Block] Schedule Of Value Of Business Acquired Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Investment, non-income producing, greater than twelve months Investment, Non-Income Producing, Greater Than Twelve Months, Fair Value Disclosure Investment, Non-Income Producing, Greater Than Twelve Months, Fair Value Disclosure Traditional Life Insurance Premiums Life Insurance Product Line [Member] Litigation Case [Axis] Litigation Case [Axis] Allowance for expected credit loss, probability of loss/default model, projected loss, using reasonable forecast period Financing Receivable, Allowance For Credit Loss, Probability of Loss, Default Model, Projected Loss, Using Reasonable And Supportable Forecast Period Financing Receivable, Allowance For Credit Loss, Probability of Loss, Default Model, Projected Loss, Using Reasonable And Supportable Forecast Period 2024 2023 Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Other securities which provide for periodic payments, Amortized Cost Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Amortized Cost Call options and interest rate swaps Call Options And Interest Rate Swaps [Member] Call Options And Interest Rate Swaps Changes in assumptions and other Market Risk Benefit, Increase (Decrease) from Other Assumption Total Liabilities, Carried On Balance Sheet At Amounts Other Than Fair Value Liabilities, Carried On Balance Sheet At Amounts Other Than Fair Value Effect of changes in discount rate assumptions AOCI, Liability for Future Policy Benefit, Expected Net Premium, before Tax Policyholder Account Balance [Table] Policyholder Account Balance [Table] FHLB Funding Agreements, Federal Home Loan Bank [Member] Funding Agreements ,Federal Home Loan Bank Less: Total Purchase price Non-cash, Acquisition, Assets Acquired Liabilities Assumed, Consideration before Liabilities And Noncontrolling Interest Non-cash, Acquisition, Assets Acquired Liabilities Assumed, Consideration before Liabilities and Noncontrolling Interest Assumed Document Fiscal Period Focus Document Fiscal Period Focus 2028 Long-Term Debt, Maturity, Year Four All Executive Categories All Executive Categories [Member] Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Equity securities Equity Securities [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] ASSETS Assets [Abstract] F&G Credit Agreement F&G Credit Agreement F&G Credit Agreement Due November 2022 [Member] F&G Credit Agreement Due November 2022 Customer relationships and contracts Customer Relationships And Contracts [Member] Customer Relationships And Contracts Other comprehensive earnings (loss) Other Comprehensive Income (Loss), Net of Tax Document Type Document Type Annual interest rate Debt Instrument, Interest Rate, Effective Percentage Derivative Contract [Domain] Derivative Contract [Domain] Schedule of Segment Reporting Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Surrenders and withdrawals Policyholder Account Balance, Surrender and Withdrawal Computer software Computer Software, Intangible Asset [Member] Escrow fees Escrow Fees [Member] Escrow Fees [Member] Ms. Sandra D. Morgan , Trading Arrangement, 35% Of Common Stock [Member] Ms. Sandra D. Morgan , Trading Arrangement, 35% Of Common Stock Balance adjusted for variances from expectation Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change Earnings of acquiree Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Reserve for title claim losses Liability for Unpaid Claims and Claims Adjustment Expense, Net Schedule of Information about Trade Receivables and Deferred Revenue Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Schedule of Estimated Amortization Expense for VOBA in Future Fiscal Periods Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Subsequent Event [Table] Subsequent Event [Table] Other assets Servicing Asset, Measurement Input Maximum Maximum [Member] Fixed maturity securities available-for-sale: Debt Securities, Available-for-Sale [Abstract] Net amount at risk Policyholder Account Balance, Net Amount at Risk Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Expected credit losses on reinsurance recoverable Allowance for expected credit loss Balance at beginning of period Balance at end of period Reinsurance Recoverable, Allowance for Credit Loss Definite lived Finite-Lived Intangible Assets, Net Summary of the Reserve for Claim Losses Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] Investment Type [Axis] Investment Type [Axis] FHLB collateral pledged Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged Certain MYGA and DA Certain MYGA And DA [Member] Certain MYGA And DA Liabilities assumed in connection with acquisitions Noncash or Part Noncash Acquisition, Net Nonmonetary Assets Acquired (Liabilities Assumed) [Abstract] F&G Reinsurance Reinsurance [Text Block] Statistical Measurement [Axis] Statistical Measurement [Axis] Interest credited Policyholder Account Balance, Interest Expense Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Acquisition date fair value of previously held interests Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Name Outstanding Recovery, Individual Name Investment contracts, included in contractholder funds Liabilities Related to Investment Contracts, Fair Value Disclosure Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cooper v. Progress Software Corp., No. 1:23-cv-12067 Cooper v. Progress Software Corp., No. 1:23-cv-12067 [Member] Cooper v. Progress Software Corp., No. 1:23-cv-12067 Charge-offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff, by Origination Year [Abstract] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Escrow, title-related and other fees Other revenues Insurance Commissions and Fees Corbeau Re Corbeau Re [Member] Corbeau Re Claims paid, net of recoupments related to: Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract] Funds Withheld, Reinsurance Agreements Funds Withheld, Reinsurance Agreements [Member] Funds Withheld, Reinsurance Agreements Derivative investments: Derivative Instruments [Member] Derivative Instruments [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Dividends paid Payments of Ordinary Dividends, Common Stock Real estate technology Real Estate Technology [Member] Real Estate Technology [Member] Investment, Name [Axis] Investment, Name [Axis] Customer relationships Customer Relationships [Member] Notes Payable Long-Term Debt [Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Other assets Other Asset Commitments [Member] Other Asset Commitments Future Policy Benefits Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Ownership [Axis] Ownership [Axis] Other Other Property [Member] Market Value of Option Measurement Input, Market Value of Option [Member] Measurement Input, Market Value of Option Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Asset-backed securities ("ABS") Asset-backed securities Asset-Backed Securities [Member] Deposit assets Deposit Contracts, Assets Issuances and benefit payments Market Risk Benefit, Issuance And Benefit Payments Market Risk Benefit, Issuance And Benefit Payments Preferred stock investment, shares issued in transaction (in shares) Purchase Of Stock Number Of Shares Issued In Transaction Purchase Of Stock Number Of Shares Issued In Transaction Assets, Total (Losses) Gains Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Long-duration Contracts Assumptions [Domain] Long-duration Contracts Assumptions [Domain] Long-duration Contracts Assumptions Summary of Reserve for Title Claim Losses F&G Insurance Subsidiary Financial Information and Regulatory Matters Insurance Disclosure [Text Block] Net realized/unrealized gains (losses) on other invested assets Gain (Loss) on Sale of Other Investments Interest credited/index credits to contractholder account balances Increase (Decrease) Interest Credited To Policy Owner Account Increase (Decrease) Interest Credited To Policy Owner Account Net earnings Net earnings Net earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Investment in unconsolidated affiliates Limited partnerships Equity Method Investments [Member] Income tax expense Income tax expense (benefit) Income Tax Expense (Benefit) 2023 2022 Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Notional Amount Derivative, Notional Amount Debt service payments Debt service payments Repayments of Senior Debt At Guaranteed Minimum Policyholder Account Balance, at Guaranteed Minimum Crediting Rate [Member] Tax deferred property exchange income Tax Deferred Property Exchange [Member] Tax Deferred Property Exchange Derivative investments Derivative investments and reinsurance related embedded derivative, included in other assets Derivative Asset Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward] Reinsurance Recoverable, Allowance for Credit Loss [Roll Forward] Carrying Value Investments Owned, VIE, Unconsolidated, Carrying Value Investments Owned, VIE, Unconsolidated, Carrying Value Revenue from contract with customer Revenue from Contract with Customer, Excluding Assessed Tax Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Universal Life Universal Life [Member] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Year two Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Interest expense Interest expense Interest Expense, Operating and Nonoperating Partial Withdrawals Measurement Input, Partial Withdrawals [Member] Measurement Input, Partial Withdrawals Business Acquisition [Line Items] Business Acquisition [Line Items] Life insurance premiums, insurance and investment product fees, and other Life Insurance Premiums, Insurance And Investment Product Fees, Other [Member] Life Insurance Premiums, Insurance And Investment Product Fees, Other All Adjustments to Compensation All Adjustments to Compensation [Member] EBITDA Multiple Measurement Input, EBITDA Multiple [Member] DSI Movement in Deferred Sales Inducements [Roll Forward] Total Other intangible assets, net Other Intangible Assets, Net Reinsurance related embedded derivative, included in other assets Embedded Derivatives Assets in Reinsurance Contracts [Member] Embedded Derivatives Assets in Reinsurance Contracts Greater than 1.00 but less than 1.25 Greater Than One But Less Than One Point Two Five [Member] Greater Than One But Less Than One Point Two Five [Member] Unrealized gain on investments in unconsolidated affiliates, tax expense OCI, Equity Method Investment, Tax Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] 2024 2023 Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Schedule of Balances and Changes in the Present Value of Expected Net Premiums and Present Value Liability for Future Policy Benefit, Activity [Table Text Block] 50.00% to 59.99% LTV 50 to 59.99 Percent [Member] LTV 50 to 59.99 Percent Related Party Transaction [Axis] Related Party Transaction [Axis] Schedule of Changes in Liability for Deferred Profit Liability Schedule of Changes In Liability For Deferred Profit Liability [Table Text Block] Schedule of Changes In Liability For Deferred Profit Liability Immediate Annuities Immediate Annuity [Member] Immediate Annuity 2027 Present Value of Future Insurance Profits, Expected Amortization, Year Three U.S. Government US Government Agencies Debt Securities [Member] Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Undiscounted, before Reinsurance Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Entity Address, State or Province Entity Address, State or Province Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] 2021 2020 Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Earnings before equity in earnings of unconsolidated affiliates Income (Loss) From Continuing Operations Before Minority Interest And Income (Loss) On Equity Method Investments, Net Of Income Tax Income (Loss) From Continuing Operations Before Minority Interest And Income (Loss) On Equity Method Investments, Net Of Income Tax Capitalization Deferred Policy Acquisition Cost, Capitalization Financial Instruments [Domain] Financial Instruments [Domain] LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Market risk benefits liability Market risk benefits liability Market Risk Benefit, Liability, Amount Prior Financing Receivable, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year, Writeoff Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Net Premium, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Restatement Determination Date Restatement Determination Date Policy charges Policyholder Account Balance, Policy Charge Fair Value Total Estimated Fair Value Estimate of Fair Value Measurement [Member] Multifamily Multifamily [Member] Interest and investment income Interest and investment income Interest and investment income Net Investment Income Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] PRT DPL PRT Deferred Profit Liability [Member] PRT Deferred Profit Liability Number of defendants Loss Contingency, Number of Defendants Reserves after NPR capping Reserves After NP Ratio Capping Reserves After NP Ratio Capping Lease assets Operating Lease, Right-of-Use Asset Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Reinsurance Disclosures [Abstract] Reinsurance Disclosures [Abstract] Balance adjusted for variances from expectation Deferred Profit Liability, Before Reinsurance, After Cash Flow Change Deferred Profit Liability, Before Reinsurance, After Cash Flow Change Additional investments in unconsolidated affiliates Payments to Acquire Equity Method Investments Total financial liabilities at fair value Financial Liabilities Fair Value Disclosure Subsequent Event Subsequent Event [Member] Effect of actual variances from expected experience Deferred Profit Liability, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience Deferred Profit Liability, Cumulative Increase (Decrease) Of Actual Variance From Expected Experience Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Expenses: Costs and Expenses [Abstract] Recognized gains and losses, net Recognized gains and losses, net Recognized gains and losses, net Gain (Loss) on Investments Deferred policy acquisition costs and deferred sales inducements Increase (Decrease) In Deferred Policy Acquisition Costs And Deferred Sales Inducements Increase (Decrease) In Deferred Policy Acquisition Costs And Deferred Sales Inducements Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Earnings per share Net Income Loss Per Common Share Attributable To Controlling Interest [Abstract] Net income (loss) per common share attributable to controlling interest. Segments [Domain] Segments [Domain] Reinsurance related adjustments Deferred Policy Acquisition Cost, Reinsurance Related Adjustments Deferred Policy Acquisition Cost, Reinsurance Related Adjustments 5.50% Senior Notes due 2025 5.50% Senior Notes due 2025 [Member] 5.50% Senior Notes due 2025 Maturities of Long-term Debt [Abstract] Maturities of Long-Term Debt [Abstract] PEO PEO [Member] Reinsurance related embedded derivatives Reinsurance Related Embedded Derivatives [Member] Reinsurance Related Embedded Derivatives Name Trading Arrangement, Individual Name Schedule of Reconciliation of Future Policy Benefits to Statement of Financial Position Schedule Of Reconciliation Of Future Policy Benefits To Statement Of Financial Position [Table Text Block] Schedule Of Reconciliation Of Future Policy Benefits To Statement Of Financial Position Deferred Sale Inducement Cost [Line Items] Deferred Sale Inducement Cost [Line Items] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Schedule of Unfunded Commitments Other Commitments [Table Text Block] Fixed maturity securities, ABS Fixed Maturity Securities, Asset Backed Securities [Member] Fixed Maturity Securities, Asset Backed Securities Investment in unconsolidated affiliate Equity Method Investment, Measurement Input Equity Method Investment, Measurement Input Fixed rate annuities Fixed Rate Annuities Fixed Annuity [Member] Equity in earnings of unconsolidated affiliates Equity in earnings of unconsolidated affiliates Equity in earnings of unconsolidated affiliates Income (Loss) from Equity Method Investments Other invested assets Other Invested Assets [Member] Other Invested Assets [Member] Earnings before income taxes and equity in earnings of unconsolidated affiliates Earnings (loss) before income taxes and equity in earnings of unconsolidated affiliates Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Equity options Call Option [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Performing Performing Financial Instruments [Member] Reinsurance recoverable, net of allowance for credit losses of $21 as of September 30, 2024 and December 31, 2023 Reinsurance recoverable, net of allowance for credit losses Reinsurance Recoverables, Including Reinsurance Premium Paid Cash and cash equivalents Cash and Cash Equivalents, Fair Value Disclosure 6.25% Senior Notes Due 2034 6.250% Senior Notes Due 2034 [Member] 6.250% Senior Notes Due 2034 Mortality rate Long-Duration Contracts, Assumptions by Product and Guarantee, Mortality Rate Residential mortgage loans, location percentage Residential Mortgage Loans, Location Percentage Residential Mortgage Loans, Location Percentage Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Ownership interest including subsequent acquisition, percentage Business Combination, Step Acquisition, Equity Interest in Acquiree, Including Subsequent Acquisition, Percentage Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed And Noncontrolling Interest, Net Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed And Noncontrolling Interest, Net Amortization Contract With Customer, Amortization Contract With Customer, Amortization Local Phone Number Local Phone Number Stock repurchase program, number of shares authorized to be repurchased (in shares) Share Repurchase Program, Authorized, Number of Shares Prepaid expenses and other assets: Prepaid Expenses and Other Current Assets [Member] Market risk benefits asset Market risk benefits asset Market Risk Benefit, Asset, Amount Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Current discount rate Liability for Future Policy Benefit, Current Weighted-Average Discount Rate 2020 2019 Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Changes in assets and liabilities, net of effects from acquisitions: Increase (Decrease) in Operating Capital [Abstract] DAC Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] Contractholder funds: Contract Holder Funds [Member] PEO Total Compensation Amount PEO Total Compensation Amount Total liability derivatives Derivative Liability, Subject to Master Netting Arrangement, before Offset Agent commissions Insurance Commissions Fixed maturity securities available for sale, at fair value, as of September 30, 2024 and December 31, 2023, at an amortized cost of $51,070 and $45,606, respectively, net of allowance for credit losses of $67 and $42, respectively, and includes pledged fixed maturity securities of $502 and $489, respectively, related to secured trust deposits Fixed maturity securities available for sale Fair Value/Carrying Value Total fixed maturity available-for-sale securities, Fair Value Debt Securities, Available-for-Sale, Excluding Accrued Interest Contractholder account deposits Proceeds from Annuities and Investment Certificates Debt Disclosure [Abstract] Debt Disclosure [Abstract] Prior Prior Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Originated, More than Five Years before Current Fiscal Year Common Stock Equity securities Common Stock [Member] Mortgage loans delinquent in principal or interest Number Of Mortgage Loans Delinquent In Principal Or Interest Number Of Mortgage Loans Delinquent In Principal Or Interest Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Changes in Fair Value of Financial Instruments - Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Loss Expense Premium Loss Expense, Net Premium Loss Expense, Net Line of Credit Line of Credit [Member] Net Premiums Earned Premiums Earned, Net [Abstract] Premiums received Policyholder Account Balance, Premium Received Term of contract, term five Derivative, Term Of Contract, Term Five Derivative, Term Of Contract, Term Five Segment Reporting [Abstract] Interest expense Liability for Future Policy Benefit, Interest Expense IOWA IOWA Limited partnerships Limited Partnership [Member] Limited Partnership [Member] Entity Central Index Key Entity Central Index Key Corporates, Non-structured Hybrids, Municipal and Government securities: Corporates, Non-structured Hybrids, Municipal And Government securities: [Member] Corporates, Non-structured Hybrids, Municipal and Government Securities Balance, beginning of year Balance, end of year Liability for Future Policy Benefit, Expected Net Premium, before Reinsurance, after Discount Rate Change Credit linked note Credit Linked Note [Member] Credit Linked Note [Member] Financing Receivable, Allowance for Credit Loss [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Total title claim loss provision Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims Schedule of Statutory Accounting Practices Statutory Accounting Practices Disclosure [Table Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Statutory capital surplus (deficit) Statutory Accounting Practices, Statutory Capital And Surplus (Deficit), Balance Statutory Accounting Practices, Statutory Capital And Surplus (Deficit), Balance Reinsurer, Name [Domain] Reinsurer, Name [Domain] Actual policyholder behavior different from expected Market Risk Benefit, Increase (Decrease) from Actual Policyholder Behavior Different from Expected Deferred acquisition costs Deferred Policy Acquisition Costs Including Funding Agreements Deferred Policy Acquisition Costs Including Funding Agreements Funds withheld for reinsurance liabilities Funds Held under Reinsurance Agreements, Liability Dividends Equity [Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Segment Information Segment Reporting Disclosure [Text Block] Condition Two Condition Two [Member] Condition Two Effects of market related movements Market Risk Benefit, Increase (Decrease) from Equity Market Change Thereafter Present Value of Future Insurance Profits, Expected Amortization, After Year Four Present Value of Future Insurance Profits, Expected Amortization, After Year Four Liabilities, Total (Losses) Gains Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Measurement Basis [Axis] Measurement Basis [Axis] Noncontrolling interests (fair value determined using income approach) Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Mountain Mountain [Member] Mountain [Member] Title Trading Arrangement, Individual Title Value of business acquired VOBA at beginning of period VOBA at end of period Total Present Value of Future Insurance Profits, Net Charges assessed to contractholders for mortality and admin Charges Assessed To Contract Holders For Mortality And Administration Mortality and expense charges and administrative fees. Other long-term investments Other Long-Term Investments City Area Code City Area Code Effect of modeling changes Deferred Profit Liability, Effect Of Modeling Changes Deferred Profit Liability, Effect Of Modeling Changes Contingent consideration obligation Business Combination, Contingent Consideration, Liability Deferred Policy Acquisition Cost [Line Items] Deferred Policy Acquisition Cost [Line Items] Office Office Building [Member] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Effect of changes in cash flow assumptions Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) from Cash Flow Change Preferred securities Preferred securities Preferred Stock [Member] Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Charge offs Total Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff Purchases of treasury stock Payments for Repurchase of Common Stock Reinsurance, retrocession, quota share basis, percentage Reinsurance, Retrocession, Quota Share Basis, Percentage Reinsurance, Retrocession, Quota Share Basis, Percentage Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Quantitative Information Regarding Significant Unobservable Inputs Used for Recurring Level Three Fair Value Measurements of Financial Instruments Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Company-owned life insurance Bank Owned Life Insurance Subsequent Event Type [Axis] Subsequent Event Type [Axis] Florida FLORIDA Investments Investment [Text Block] Basis of Financial Statements Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Market Risk Benefits (“MRBs”) Market Risk Benefit [Policy Text Block] Equity [Abstract] Equity [Abstract] Retained earnings Retained Earnings (Accumulated Deficit) Commercial mortgage loans Investments, Commercial Mortgage Loans, Fair Value Disclosure Fair value of the investment commercial mortgage loan portfolio Class of Stock [Domain] Class of Stock [Domain] 2025 Present Value of Future Insurance Profits, Expected Amortization, Year One Supplemental Cash Flow Elements [Abstract] Issuances Deferred Profit Liability, Issuance Deferred Profit Liability, Issuance Long-duration Contracts Assumptions [Axis] Long-duration Contracts Assumptions [Axis] Long-duration Contracts Assumptions 2026 Long-Term Debt, Maturity, Year Two Damages from Product Defects Damages from Product Defects [Member] Foreign Governments Debt Security, Government, Non-US [Member] Schedule of Reinsurance Recoverable Schedule Of Reinsurance Recoverable [Table Text Block] Schedule Of Reinsurance Recoverable Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Traditional Life Traditional Life Traditional Life Insurance [Member] Traditional Life Insurance Equity Awards Adjustments Equity Awards Adjustments [Member] Lease liabilities Operating Lease, Liability Underlying Securities Award Underlying Securities Amount MRB, attributed fee ratio capped percentage Market Risk Benefit, Attributed Fee Ratio Capped Percentage Market Risk Benefit, Attributed Fee Ratio Capped Percentage Provision for title insurance claim losses as a percentage of title insurance premiums Provision For Title Insurance Claims On Current Year Policies Provision For Title Insurance Claims On Current Year Policies Term Loan Term Loan Credit Agreement [Member] Term Loan Credit Agreement Dividends declared, per common share Dividends, Common Stock, Cash Amendment Flag Amendment Flag Carrying Amount Reported Value Measurement [Member] Financial Instrument Performance Status [Domain] Financial Instrument Performance Status [Domain] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Total number of available-for-sale securities in an unrealized loss position less than twelve months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Change in NAV of limited partnerships, net Unrealized Gain (loss) In Net Asset Value Of Limited Partnerships Unrealized Gain (loss) In Net Asset Value Of Limited Partnerships 7.95% F&G Notes, net of discount 7.95% Senior Notes Due 2053 [Member] 7.95% Senior Notes Due 2053 Net Benefits Incurred Policyholder Benefits and Claims Incurred, Net [Abstract] Deferred Policy Acquisition Cost [Table] Deferred Policy Acquisition Cost [Table] Supplemental Cash Flow Information Cash Flow, Supplemental Disclosures [Text Block] Debt issuance costs, net Debt Issuance Costs, Net Due in one year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Schedule of Other Intangible Assets, Indefinite Schedule of Indefinite-Lived Intangible Assets [Table Text Block] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Aggregate principal amount Debt Instrument, Face Amount Funding Agreements Funding Agreements [Member] Funding Agreements Liabilities, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Entity Address, Postal Zip Code Entity Address, Postal Zip Code Interest rate swaps Interest rate swaps Interest Rate Swap [Member] Change in funds withheld from reinsurers Increase (Decrease) in Reinsurance Payables Policyholder account balance, above guaranteed minimum crediting rate Policyholder Account Balance, above Guaranteed Minimum Crediting Rate Accrued interest receivable Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss Derivative instruments excluding futures contracts Derivative Instruments Excluding Futures Contract [Member] Derivative Instruments Excluding Futures Contracts F&G Credit Agreement repayments, net Proceeds from (Repayments of) Other Long-Term Debt Cash and cash equivalents, as of September 30, 2024 and December 31, 2023 includes $289 and $262, respectively, of pledged cash related to secured trust deposits Cash and Cash Equivalents, at Carrying Value Actuarial model updates and refinements Present Value of Future Insurance Profit, Experience Adjustment Schedule of Investments [Table] Schedule of Investments [Table] Litigation Status [Axis] Litigation Status [Axis] Net other investing activities Payments for (Proceeds from) Other Investing Activities Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Provision (expense) benefit for loan losses Financing Receivable, Credit Loss, Expense (Reversal) 2.45% Senior Notes due 2031 2.45% Notes, net of discount 2.45% Notes Due March 2031 [Member] 2.45% Notes Due March 2031 Non-Performance Spread Measurement Input, Non-Performance Spread [Member] Measurement Input, Non-Performance Spread Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Wilton Reassurance Company Wilton Reassurance Company [Member] Wilton reassurance company. Depreciation and amortization Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Fair Value Measurement [Domain] Fair Value Measurement [Domain] Fair value of assets acquired Noncash or Part Noncash Acquisition, Value of Assets Acquired Total Assets, Carried On Balance Sheet At Other Than Fair Value, Amount Assets, Carried On Balance Sheet At Other Than Fair Value, Amount Cash acquired Less: Cash acquired net of noncontrolling interests Less: Cash acquired Cash Acquired from Acquisition Somerset Reinsurance Ltd (c) Somerset Reinsurance Ltd [Member] Somerset Reinsurance Ltd Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Revenue Recognition, Services, Real Estate Transactions Revenue Recognition, Services, Real Estate Real Estate Transactions [Policy Text Block] Revenue Recognition, Services, Real Estate Real Estate Transactions Derivatives: Derivative Asset [Abstract] Ownership interest prior to acquisition Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Amortization Deferred Profit Liability, Amortization Deferred Profit Liability, Amortization Broker quoted/Market Comparable Valuation, Market Approach [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Schedule of Fair Value and Gross Unrealized Losses of Available-for-sale Securities Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Commitment to Invest Commitment to Invest [Member] Commitment to Invest [Member] Allowance for doubtful accounts, premiums and other receivables Allowance for Doubtful Accounts, Premiums and Other Receivables Total assets Assets Assets Lapse rate Long-Duration Contracts, Assumptions by Product and Guarantee, Lapse Rate Third-Party Valuation Third Party Valuation Technique [Member] Third Party Valuation Technique [Member] Schedule of Balances and Changes in Contractholder Funds Policyholder Account Balance [Table Text Block] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Statutory Accounting Practices, Jurisdiction [Domain] Statutory Accounting Practice, Jurisdiction [Domain] Net liability for future policy benefits, after reinsurance recoverable Liability for Future Policy Benefit, after Reinsurance Amortization Present Value of Future Insurance Profit, Experience Adjustment, Amortization Present Value of Future Insurance Profit, Experience Adjustment, Amortization Reclassification adjustments for change in unrealized gains and losses included in net earnings Reclassification adjustments for change in unrealized gains and losses included in net earnings Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Conditional Prepayment Rate Measurement Input, Prepayment Rate [Member] Reserves before NPR capping Reserves Before NP Ratio Capping Reserves Before NP Ratio Capping Schedule of Liability for Future Policy Benefit Expected Future Policy Benefit Undiscounted Before Reinsurance Schedule Of Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted And Discounted [Table Text Block] Schedule Of Liability For Future Policy Benefit Expected Future Policy Benefit Undiscounted And Discounted Termination Date Trading Arrangement Termination Date Accounts payable and accrued liabilities: Accounts Payable and Accrued Liabilities [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] Unrealized gain on investments in unconsolidated affiliates Other comprehensive earnings — unrealized (loss) gain on investments in unconsolidated affiliates OCI, Equity Method Investment, after Tax Benefits payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Benefit Payment 2025 Long-Term Debt, Maturity, Year One Distribution Investments And Affiliates Distribution Investments And Affiliates [Member] Distribution Investments And Affiliates Market Risk Benefits Contractholder Funds Long-Duration Insurance Contracts Disclosure [Text Block] Net Credit Risk Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Reinsurance related embedded derivative Reinsurance related embedded derivatives Reinsurance Related Embedded Derivative [Member] Reinsurance Related Embedded Derivative Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Schedule of Reconciliation of Asset and Liability Market Risk Benefit, Asset And Liability [Table Text Block] Market Risk Benefit, Asset And Liability Schedule of Fair Value Amounts Expected to be Recognized for Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Direct title insurance premiums Insurance Contracts, Direct Title Insurance Premiums [Member] Insurance Contracts, Direct Title Insurance Premiums [Member] Debt Instrument [Axis] Debt Instrument [Axis] Market Risk Benefit [Line Items] Market Risk Benefit [Line Items] 3.20% Senior Notes due 2051 3.20% Notes, net of discount 3.20% Senior Notes 3.20% Senior Notes Due 2051 [Member] 3.20% Senior Notes Due 2051 Net earnings attributable to Fidelity National Financial, Inc. common shareholders Net Income (Loss) Net Income (Loss) Attributable to Parent Trading Arrangement: Trading Arrangement [Axis] Balance, beginning of period, before effect of changes in the instrument-specific credit risk Balance, end of period, before effect of changes in the instrument-specific credit risk Market Risk Benefit, before Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change 2022 2021 Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Assets held by insurance regulators Assets Held by Insurance Regulators Interest accrual Liability for Future Policy Benefit, Expected Future Policy Benefit, Interest Expense Change in total benefits and other changes in policy reserves increase (decrease) Policyholder Benefits And Claims Incurred, Net, Life and Annuity, Change In Policy Reserves, Increase (Decrease) Policyholder Benefits And Claims Incurred, Net, Life and Annuity, Change In Policy Reserves, Increase (Decrease) Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Available-for-sale securities Debt Securities, Available-for-Sale, Fair Value to Amortized Cost, after Allowance for Credit Loss [Abstract] Total expenses Benefits, Losses and Expenses Balance, end of period, net of reinsurance Market Risk Benefit, after Reinsurance and Cumulative Increase (Decrease) from Instrument-Specific Credit Risk Change Entity File Number Entity File Number Schedule of Recognized Gains and Losses, net Realized Gain (Loss) on Investments [Table Text Block] Non-controlling Interests Noncontrolling Interest [Member] Income Statement [Abstract] Income Statement [Abstract] Entity Address, Address Line One Entity Address, Address Line One Certain MYGA Certain MYGA [Member] Certain MYGA Mortality Measurement Input, Mortality Rate [Member] Debt Rate Condition [Axis] Debt Rate Condition [Axis] Debt Rate Condition Name Forgone Recovery, Individual Name Schedule of Investment in Mortgage Loans by Loan to Value and Debt Service Coverage Ratios Schedule of Investment in Mortgage Loans by Loan to Value and Debt Service Coverage Ratios [Table Text Block] Tabular disclosure of investments in loans separated by loan to value (LTV) and debt service coverage ratios (DSCR). Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Other securities which provide for periodic payments, Fair Value Debt Securities, Available-for-Sale, Maturity, without Single Maturity Date, Fair Value Schedule of Exposure to Credit Loss on Call Options Held Schedule Of Exposure To Credit Loss On Derivative Instrument Table [Table Text Block] Schedule of exposure to credit loss on derivative instrument. Changes in the expected credit loss reserve Reinsurance Recoverable, Credit Loss Expense (Reversal) Range from 0051 to 0150 Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0051 to 0150 [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Other intangible assets, net Intangible Assets, Net (Excluding Goodwill And Title Plants) Intangible Assets, Net (Excluding Goodwill And Title Plants) Change in future policy benefits Increase (Decrease) in Future Policy Benefit Reserves PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Net earnings per share attributable to common shareholders, diluted (in usd per share) Income (Loss) from Continuing Operations, Per Diluted Share Loan Commitment Loan Commitment [Member] Loan Commitment Invested cash and short-term investments Invested Cash And Short Term Investments [Member] Invested cash and short-term investments. Adjustment to Compensation: Adjustment to Compensation [Axis] Less: Net earnings attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] Debt Securities, Available-for-Sale, Unrealized Loss Position [Line Items] 0.00%-1.50% Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Range From 0.00% To 1.50% [Member] Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate Range, From 0.00% To 1.50% Maximum Loss Exposure Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount Document Quarterly Report Document Quarterly Report 60.00% to 74.99% LTV 60 to 74.99 Percent [Member] LTV 60 to 74.99 Percent Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Litigation Case [Domain] Litigation Case [Domain] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Assets, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Related Party [Axis] Related and Nonrelated Parties [Axis] Weighted average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Unrealized gain (loss) on investments and other financial instruments, tax expense (benefit) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, Tax Gross Unrealized Losses, 12 months or longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Total equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest New York New York NEW YORK Name Awards Close in Time to MNPI Disclosures, Individual Name Gross Unrealized Losses Less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Schedule of Residential Mortgage Loans by State Schedule of Residential Mortgage Loans by Geographic Location [Table Text Block] Schedule of Residential Mortgage Loans by Geographic Location Revenues from external customers Insurance Services Revenue Acquisitions and dispositions Payments to Acquire Businesses, Net Of Dispositions Payments to Acquire Businesses, Net Of Dispositions Entity Filer Category Entity Filer Category Beginning balance (in shares) Ending balance (in shares) Shares, Issued Collateral held Collateral Already Posted, Aggregate Fair Value South Atlantic South Atlantic US [Member] South Atlantic US [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] 2021 2020 Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year Fed Funds Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Corporate and Other Corporate Segment and Other Operating Segment [Member] Market Value of AnchorPath Fund Measurement Input Type, Market Value of Fund [Member] Measurement Input Type, Market Value of Fund 2020 2019 Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year Statistical Measurement [Domain] Statistical Measurement [Domain] Gross Unrealized Losses Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax Year four Financing Receivable, Excluding Accrued Interest, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Fixed maturity securities, available-for-sale Debt Securities [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] All Trading Arrangements All Trading Arrangements [Member] Change in proceeds of sales of investments available for sale receivable in period Noncash Investing And Financing Activities, Change In Proceeds Of Sales Of Investments Noncash Investing And Financing Activities, Change In Proceeds Of Sales Of Investments Change in market risk benefits, net Market Risk Benefit, Increase (Decrease), Net Market Risk Benefit, Increase (Decrease), Net Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Greater than 2.50% Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Range, Greater Than 2.50% [Member] Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Range, Greater Than 2.50% Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Derivative [Line Items] Derivative [Line Items] Income taxes Income Taxes Paid, Net Other Commitments [Line Items] Other Commitments [Line Items] Loans under development, amortized cost Loans Under Development, Amortized Cost Loans Under Development, Amortized Cost Changes in instrument-specific credit risk - market risk benefits, tax (benefit) OCI, Market Risk Benefit, Instrument-Specific Credit Risk, Gain (Loss), after Adjustments, Tax Investments in unconsolidated affiliates Investments in unconsolidated affiliates Equity Method Investments Pay vs Performance Disclosure [Line Items] Term of contract, term one Derivative, Term Of Contract, Term One Derivative, Term Of Contract, Term One Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Residential mortgage-backed securities Residential mortgage-backed securities Residential Mortgage-Backed Securities [Member] FABN Funding Agreements, FABN [Member] Funding Agreements, FABN Derivative [Table] Derivative [Table] Raven Reinsurance Company Raven Reinsurance Company [Member] Raven Reinsurance Company Texas TEXAS Secured borrowing receivable Secured Borrowing Receivable [Member] Secured Borrowing Receivable Futures contracts Future [Member] Schedule of Carrying Amount of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Net change in other assets and other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Other Performance Measure, Amount Other Performance Measure, Amount Common stock, shares, outstanding (in shares) Common Stock, Shares, Outstanding Schedule of Reconciliation of Policyholder Account Balances to Statement of Financial Position Schedule Of Reconciliation Of Policyholder Account Balances To Statement Of Financial Position [Table Text Block] Schedule Of Reconciliation Of Policyholder Account Balances To Statement Of Financial Position Future policy benefits Net liability for future policy benefits Future policy benefits Liability for Future Policy Benefit, before Reinsurance Weighted-average attained age of policyholders weighted by total AV (years) Net Amount At Risk By Product And Guarantee, Weighted Average Attained Age Of Policyholders Weighted By Total AV Net Amount At Risk By Product And Guarantee, Weighted Average Attained Age Of Policyholders Weighted By Total AV Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Effects of Reinsurance [Table] Effects of Reinsurance [Table] F&G purchase of FG stock/Purchase of incremental share in consolidated subsidiaries Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Debt, period prior to maturity date (days) Debt Instrument, Period Prior To Stated Maturity Date Debt Instrument, Period Prior To Stated Maturity Date Gross losses Debt Securities, Available-for-Sale, Realized Loss Accounts payable and accrued liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable And Accrued Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable And Accrued Liabilities Policyholder Account Balance [Line Items] Policyholder Account Balance [Line Items] ServiceLink, excluding title premiums, escrow fees, and subservicing fees ServiceLink, Excluding Title Premiums, Escrow Fees And Subservicing Fees [Member] ServiceLink, Excluding Title Premiums, Escrow Fees And Subservicing Fees [Member] Preferred stock, liquidation preference (in usd per share) Preferred Stock, Liquidation Preference Per Share Entity Tax Identification Number Entity Tax Identification Number Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Schedule of Notes Payable Schedule of Long-Term Debt Instruments [Table Text Block] New England New England [Member] New England [Member] Deferred Sale Inducement Cost [Table] Deferred Sale Inducement Cost [Table] DAC at beginning of period DAC at end of period Deferred Policy Acquisition Cost Treasury Stock Treasury Stock, Common [Member] Other operating expenses Other Cost and Expense, Operating Offered Quotes Measurement Input, Quoted Price [Member] Retail Retail Site [Member] Equity Components [Axis] Equity Components [Axis] Effects of Reinsurance [Line Items] Effects of Reinsurance [Line Items] Contract With Customer Liability [Roll Forward] Contract With Customer Liability [Roll Forward] Contract With Customer Liability Balance at Beginning of Period Balance at End of Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Collateral posted Collateral Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Realized gains (losses) on certain derivative instruments Gain (Loss) on Sale of Derivatives Range from 0001 to 0050 Policyholder Account Balance, above Guaranteed Minimum Crediting Rate, Range from 0001 to 0050 [Member] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Effect of changes in the instrument-specific credit risk AOCI, Market Risk Benefit, Instrument-Specific Credit Risk, before Tax Direct Direct Premiums Earned Investments [Domain] Investments [Domain] Investment in preferred stock Payments To Purchase Preferred Stock Of Subsidiary Payments To Purchase Preferred Stock Of Subsidiary Effect of actual variances from expected experience Liability for Future Policy Benefit, Expected Future Policy Benefit, Cumulative Increase (Decrease) of Actual Variance from Expected Experience Market Risk Benefit [Table] Market Risk Benefit [Table] Financing Receivable, Credit Quality Indicator [Line Items] Financing Receivable, Credit Quality Indicator [Line Items] Geographical [Axis] Geographical [Axis] Policy period Contract With Customer, Policy Period Contract With Customer, Policy Period Proceeds from sales, calls and maturities of investment securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Weighted Average Weighted Average [Member] Change in reinsurance recoverable Change in insurance recoverable Increase (Decrease) in Reinsurance Recoverable Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Contingent consideration Contingent Consideration Liability [Member] Contingent Consideration Liability Prior years Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years Non-cash lease costs Operating Lease, Expense Home warranty contract, period Home Warranty Contract, Period Home Warranty Contract, Period DSI amortization Amortization Deferred Sales Inducement Cost, Amortization Expense Change in purchases of investments available for sale payable in period Noncash Investing And Financing Activities, Change In Purchases Of Investments Noncash Investing And Financing Activities, Change In Purchases Of Investments Total Fair Value Debt Securities, Available-for-Sale, Unrealized Loss Position Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Indexed annuities/IUL embedded derivatives increase Indexed Annuity, IUL Embedded Derivatives [Member] Indexed Annuity, IUL Embedded Derivatives Schedule of Liability for Future Policy Benefits, Additional Information Liability For Future Policy Benefits, Additional Information [Table Text Block] Liability For Future Policy Benefits, Additional Information Securities, at fair value Equity and preferred securities Equity Securities, FV-NI, Current Subtotal Level 3 liabilities at fair value Total Liabilities Before Market Risk Benefit [Member] Total Liabilities Before Market Risk Benefit Consolidation Items [Axis] Consolidation Items [Axis] Schedule of Financial Strength Ratings of Principal Reinsurers Schedule Of Credit Ratings Of Principal Reinsurers [Table Text Block] Schedule Of Credit Ratings Of Principal Reinsurers Greater Than 0150 Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Greater Than 0150 [Member] Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Greater Than 0150 Less: Reinsurance recoverable Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance Treasury stock (in shares) Beginning balance, Treasury stock (in shares) Ending balance, Treasury stock (in shares) Treasury Stock, Common, Shares Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Beginning balance of original discount rate Ending Balance at original discount rate Liability for Future Policy Benefit, Expected Future Policy Benefit, Original Discount Rate, before Cash Flow and Reinsurance Product and Service [Domain] Product and Service [Domain] Derivatives for Trading and Investment Derivatives For Trading And Investment [Member] Derivatives For Trading And Investment [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Valuation, Income Approach Valuation, Income Approach [Member] Direct title insurance premiums Direct Premiums Written Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Security Exchange Name Security Exchange Name Net Liability, after Reinsurance Policyholder Account Balance, Net Of Deposit Asset Policyholder Account Balance, Net Of Deposit Asset Basis spread on variable rate (as percent) Debt Instrument, Basis Spread on Variable Rate Financing Receivable, Credit Quality Indicator [Table] Financing Receivable, Credit Quality Indicator [Table] Related Party Transaction [Domain] Related Party Transaction [Domain] Changes in instrument-specific credit risk - market risk benefits Change in instrument-specific credit risk - market risk benefits OCI, Market Risk Benefit, Instrument-Specific Credit Risk, Gain (Loss), after Adjustments and Tax Mortgage loans Mortgage Loans [Member] Mortgage Loans Less: Comprehensive earnings attributable to non-controlling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Deferred sales inducements DSI at beginning of period DSI at end of period Deferred Sale Inducement Cost Personnel costs Labor and Related Expense Amortized Cost Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Loan commitment (up to) Total Other Commitment Mixed Use Mixed Use Property [Member] Mixed Use Property Schedule of Proceeds from Sale of Fixed Maturity Available-for-sale Securities Debt Securities, Available-for-Sale [Table Text Block] Block of traditional, IUL and UL Block Of Traditional, IUL And UL [Member] Block Of Traditional, IUL And UL Assets, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Market risk benefit Market Risk Benefit, Measurement Input Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Credit Quality Indicator Prior Year [Abstract] Credit Quality Indicator Prior Year [Abstract] Credit Quality Indicator Prior Year Other assets Other Assets [Member] Other comprehensive (loss) earnings attributable to non-controlling interest Other comprehensive income (loss) associated with noncontrolling interests Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Noncontrolling Interest, Spinoff Other Comprehensive Income (Loss), Net Of Tax, Portion Attributable To Noncontrolling Interest, Spinoff Net change in income taxes Increase (Decrease) in Income Taxes Payable Debt Service Coverage Ratio [Axis] Debt Service Coverage Ratio [Axis] Debt Service Coverage Ratio Expected future benefit payments Liability for Future Policy Benefit, Expected Future Policy Benefit, Undiscounted, before Reinsurance Line of credit facility Line of Credit Facility, Maximum Borrowing Capacity Total Gross Unrealized Losses Debt Securities, Available-for-Sale, Unrealized Loss Position, Accumulated Loss Year three Financing Receivable, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff Derivative liability Derivative Liability Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Vermont VERMONT Trade receivables Accounts Receivable, after Allowance for Credit Loss Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Asset, Gain (Loss), Statement of Other Comprehensive Income or Comprehensive Income [Extensible Enumeration] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Net cash paid Net cash paid Payments to Acquire Businesses, Net of Cash Acquired Remeasurement of lease liabilities Lessee, Operating Lease, Remeasurement Of Lease Liability Lessee, Operating Lease, Remeasurement Of Lease Liability Consolidation, Eliminations Consolidation, Eliminations [Member] Insurance [Abstract] Insurance [Abstract] Direct Direct [Member] Direct Gross Liability, end of period Contractholder funds Policy Holder Account Balance, Gross Liability Policy Holder Account Balance, Gross Liability Balance adjusted for variances from expectation Liability for Future Policy Benefit, Expected Future Benefit, Original Discount Rate, before Reinsurance, after Cash Flow Change Sandra D. Morgan [Member] Sandra D. Morgan Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Prepaid expenses and other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets Schedule of Supplemental Cash Flow Information Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of Carrying Value and Maximum Loss Exposure, Unconsolidated VIEs Schedule of Carrying Value and Maximum Loss Exposure, Unconsolidated VIEs [Table Text Block] Schedule of Carrying Value and Maximum Loss Exposure, Unconsolidated VIEs Issuances Policyholder Account Balance, Issuance Debt Service Coverage Ratio [Domain] Debt Service Coverage Ratio [Domain] Debt Service Coverage Ratio Cash, pledged, secured trust deposits Cash, Pledged, Customer Advances And Deposits Cash, Pledged, Customer Advances And Deposits Hedging Designation [Domain] Hedging Designation [Domain] Statement of Financial Position Location, Balance [Axis] Statement of Financial Position Location, Balance [Axis] Payment of contingent consideration for prior period acquisitions Payment for Contingent Consideration Liability, Financing Activities Available-for-sale securities, pledged securities, secured trust deposits Debt Securities, Available-For-Sale Securities, Pledged, Customer Advances And Deposits Debt Securities, Available-For-Sale Securities, Pledged, Customer Advances And Deposits EBITDA Volatility Measurement Input, EBITA Volatility [Member] Measurement Input, EBITA Volatility Changes in current discount rate - future policy benefits Change in current discount rate — liability for future policy benefits OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment and Tax Non-performing Nonperforming Financial Instruments [Member] Middle Atlantic Middle Atlantic US [Member] Middle Atlantic US [Member] Fair Value, 12 months or longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer Notes payable Outstanding debt Long-Term Debt Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Effect of changes in cash flow assumptions Deferred Profit Liability, Effect Of Changes In Cash Flow Assumptions Deferred Profit Liability, Effect Of Changes In Cash Flow Assumptions Total commercial mortgage loans, gross of valuation allowance Amortized Cost Amortized Cost Total Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss Balance beginning of period Balance, end of period Market Risk Benefit, after Increase (Decrease) from Instrument-Specific Credit Risk Income tax expense as percentage of earnings before income taxes, percent Income Tax Expense As Percentage Of Earnings Before Income Taxes, Percent Income Tax Expense As Percentage Of Earnings Before Income Taxes, Percent Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Investment expense Investment Income, Investment Expense Payments for commissions Payments for Commissions Number of counterparties, net exposure threshold set to zero Number of Counterparties, Net Exposure Threshold Not Set to Zero Number of Counterparties, Net Exposure Threshold Not Set to Zero Benefits and other changes in policy reserves Policyholder Benefits And Claims Incurred, Net, Life And Annuity Remeasurement Gains (Losses) Policyholder Benefits And Claims Incurred, Net, Life And Annuity Remeasurement Gains (Losses) Surrender Rates Measurement Input, Surrender Rates [Member] Measurement Input, Surrender Rates Market Risk Benefit Type [Axis] Market Risk Benefit Type [Axis] Market Risk Benefit Type URL Deferred revenue (contract liabilities) Balance, beginning Balance, ending Contract with Customer, Liability Commission Fees Paid Commission Fees Paid [Member] Commission Fees Paid Net change in secured trust deposits Payments For (Proceeds From) Secured Trust Deposits Payments For (Proceeds From) Secured Trust Deposits Accounting Policies [Abstract] Accounting Policies [Abstract] Liabilities: Liabilities [Abstract] Short term investments Short-term Investments, Fair Value Short-term Investments, Fair Value Revenues: Revenues [Abstract] Statutory net income (loss) Statutory Accounting Practices, Statutory Net Income (Loss) Amount Statutory Accounting Practices, Statutory Net Income (Loss) Amount FHLB common stock FHLB Common Stock, Fair Value FHLB Common Stock, Fair Value Acquisitions Business Combination Disclosure [Text Block] Current Fiscal Year End Date Current Fiscal Year End Date PEO Name PEO Name All Award Types Award Type [Domain] URL Unearned Revenue Liabilities [Member] Unearned Revenue Liabilities PRT PRT PRT [Member] PRT Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Non-PEO NEO Non-PEO NEO [Member] Insurance contracts Insurance Contracts [Member] Insurance Contracts [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Capitalization Contract With Customer Liability, Additions Contract With Customer Liability, Additions Schedule of Distribution of CMLs, Gross Valuation by Property Type and Geographic Region Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Settlement of prepaid asset Business Combination, Consideration Transferred, Settlement Of Prepaid Asset Business Combination, Consideration Transferred, Settlement Of Prepaid Asset Year five Financing Receivable, Excluding Accrued Interest, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] GMWB Utilization Measurement Input, GMWB Utilization [Member] Measurement Input, GMWB Utilization Class of Stock [Axis] Class of Stock [Axis] Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Name Measure Name Limited partnerships Limited Partnerships, Investment Income, Net Limited Partnerships, Investment Income, Net Hybrids Hybrids Hybrids [Member] Hybrids. Entity Interactive Data Current Entity Interactive Data Current Debt Rate Condition [Domain] Debt Rate Condition [Domain] Debt Rate Condition [Domain] Home warranty Insurance Contracts, Home Warranty [Member] Insurance Contracts, Home Warranty [Member] Provision for title claim losses Net Policyholder Benefits and Claims Incurred, Net Pending Litigation Pending Litigation [Member] All other states All Other States [Member] All Other States [Member] Schedule of Carrying Amount and Estimated Fair Value of Assets and Liabilities on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Weighted-average duration of liability for future policyholder benefits (years) Liability for Future Policy Benefit, Weighted-Average Duration Contingent consideration Business Combination, Contingent Consideration, Liability, Measurement Input Stock-based compensation cost Share-Based Payment Arrangement, Noncash Expense VOBA amortization including actuarial model updates and refinements Present Value of Future Insurance Profits, Amortization Expense, Including Experience Adjustment Amortization Expense Present Value of Future Insurance Profits, Amortization Expense, Including Experience Adjustment Amortization Expense Schedule of Loans with Credit Quality Indicators, Performing or Nonperforming Schedule of Loans with Credit Quality Indicators, Performing or Nonperforming [Table Text Block] Schedule of Loans with Credit Quality Indicators, Performing or Nonperforming NAV Fair Value Measured at Net Asset Value Per Share [Member] Ms. Sandra D. Morgan, Trading Arrangement, Common Stock [Member] Ms. Sandra D. Morgan, Trading Arrangement, Common Stock Net realized (losses) gains on fixed maturity available-for-sale securities Debt Securities, Realized Gain (Loss) Liabilities, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage F&G repurchases of F&G stock Payments For Repurchase Of Common Stock By Subsidiary Payments For Repurchase Of Common Stock By Subsidiary Schedule of Investments [Line Items] Schedule of Investments [Line Items] Cash paid for: Supplemental Cash Flow Information [Abstract] Schedule of Change in Fair Value of Derivative Instruments Derivative Instruments, Gain (Loss) [Table Text Block] Amortized cost of loans on non-accrual Financing Receivable, Excluding Accrued Interest, Nonaccrual Preferred stock, dividend rate, percentage Preferred Stock, Dividend Rate, Percentage Net proceeds from sales and maturities of short-term investment securities Proceeds from Sale, Maturity and Collection of Short-Term Investments Bermuda BERMUDA Number of instruments held Derivative, Number of Instruments Held Schedule of Loans Segregated by Risk Rating Exposure Financing Receivable Credit Quality Indicators [Table Text Block] Variable Rate [Domain] Variable Rate [Domain] Total liabilities and equity Liabilities and Equity Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Ceded Ceded Premiums Earned Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Designation [Axis] Hedging Designation [Axis] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Less than 1.00 Less Than One Point Zero Zero [Member] Less Than One Point Zero Zero Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Term Loan Term Loan [Member] Term Loan Schedule of Principal Maturities of Notes Payable Schedule of Maturities of Long-Term Debt [Table Text Block] Lease liabilities recognized in exchange for lease right-of-use assets Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Underlying Security Market Price Change Underlying Security Market Price Change, Percent Measurement Input Type [Axis] Measurement Input Type [Axis] Individual: Individual [Axis] Debt securities Debt Securities, Available-for-Sale, Measurement Input Shares withheld for taxes and in treasury Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Accumulated Other Comprehensive Earnings (Loss) AOCI Attributable to Parent [Member] Initial fair value of contingent consideration Business Combination, Consideration Transferred, Liabilities Incurred Liability for Future Policy Benefit, Expected Future Policy Benefit, Discounted [Abstract] Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted [Abstract] Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted Present Value of Future Insurance Profit [Table] Present Value of Future Insurance Profit [Table] Product and Service [Axis] Product and Service [Axis] Statement [Line Items] Statement [Line Items] Measurement Input Type [Domain] Measurement Input Type [Domain] Expected experience Long-Duration Contracts, Assumptions, Expected Experience [Member] Long-Duration Contracts, Assumptions, Expected Experience Actual experience Long-Duration Contracts, Assumptions, Actual Experience [Member] Long-Duration Contracts, Assumptions, Actual Experience Weighted-average crediting rate Policyholder Account Balance, Weighted Average Crediting Rate Change in allowance for expected credit losses Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease) 7.40% F&G Notes, net of discount 7.40% F&G Senior Notes 7.40% F&G Senior Notes due 2028 [Member] 7.40% F&G Senior Notes due 2028 Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Total consideration Total initial consideration Business Combination, Consideration Transferred Other title-related fees and income Other Title Related Fees And Income [Member] Other Title Related Fees And Income [Member] Balance at Beginning of Period Balance at End of Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Deferred Profit Liability Rollforward [Roll Forward] Deferred Profit Liability Rollforward [Roll Forward] Deferred Profit Liability Rollforward Corporate and other Corporate And Reconciling Items [Member] Corporate And Reconciling Items [Member] Schedule of Changes in Fair Value of Financial Instruments - Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Minimum Minimum [Member] Adoption Date Trading Arrangement Adoption Date Contingent consideration liability payment period Business Combination, Contingent Consideration Liability Payment Period Business Combination, Contingent Consideration Liability Payment Period Subtotal Level 3 assets at fair value Total Assets At Fair Value Before Market Risk Benefit Asset [Member] Total Assets At Fair Value Before Market Risk Benefit Asset F&G FGL Holdings [Member] FGL Holdings [Member] DAC amortization Amortization Deferred Policy Acquisition Costs, Amortization Expense Maturity date, principal amount, maximum Debt Instrument, Maturity Date, Maximum Principal Amount Trigger Debt Instrument, Maturity Date, Maximum Principal Amount Trigger 30-89 days past due 30-89 days past due Financial Asset, 30 to 89 Days Past Due [Member] Financial Asset, 30 to 89 Days Past Due Due after five years through ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Ceded Policyholder Benefits and Claims Incurred, Ceded Schedule of Rollforward of Unearned Revenue Liabilities (URL) Contract With Customer Liability [Table Text Block] Contract With Customer Liability Counterparty Discount Rate Measurement Input, Counterparty Discount Rate [Member] Measurement Input, Counterparty Discount Rate Unrealized gain (loss) on foreign currency translation, tax expense (benefit) Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Segments [Axis] Segments [Axis] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Instrument [Axis] Schedule of Liability for Future Policy Benefit, Weighted Average Discount Rates Schedule Of Liability For Future Policy Benefit, Weighted Average Discount Rates [Table Text Block] Schedule Of Liability For Future Policy Benefit, Weighted Average Discount Rates Outstanding principal Total long term debt Long-Term Debt, Gross Distributions from unconsolidated affiliates, return of investment Proceeds from Equity Method Investment, Distribution, Return of Capital Exercise Price Award Exercise Price West North Central West North Central US [Member] West North Central US [Member] Arrangement Duration Trading Arrangement Duration Reinsurance related embedded derivatives Embedded Derivatives Liabilities In Reinsurance Contracts [Member] Embedded Derivatives Liabilities in Reinsurance Contracts [Member] 2024 Repurchase Program 2024 Repurchase Program [Member] 2024 Repurchase Program Value of Business Acquired, Deferred Acquisition Costs and Deferred Sales Inducements Goodwill and Intangible Assets Disclosure [Text Block] Net earnings per share attributable to common shareholders, basic (in usd per share) Income (Loss) from Continuing Operations, Per Basic Share Present Value of Future Insurance Profit [Line Items] Present Value of Future Insurance Profit [Line Items] Equity: Equity, Attributable to Parent [Abstract] Valuation gains (losses) Equity Securities, FV-NI, Valuation Gain (Loss) Equity Securities, FV-NI, Valuation Gain (Loss) Fair Value, Less than 12 months Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, Less than 12 Months Change in Unrealized Included in OCI Fair Value, Asset, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Current year Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year Total investments Investments Attributed fees collected and interest accrual Market Risk Benefit, Attributed Fee Collected Schedule of Effect of Reinsurance on Premiums Earned, Benefits Incurred and Reserve Changes Schedule Of Effect Of Reinsurance On Premiums Earned And Benefits Incurred And Reserve Changes Table [Table Text Block] Schedule of effect of reinsurance on premiums earned and benefits incurred and reserve changes. Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Policyholder Account Balance, above Guaranteed Minimum Crediting Rate [Domain] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] All Individuals All Individuals [Member] F&G F&G Segment [Member] F&G Segment 6.50% F&G Notes, net of discount 6.50% Senior Notes due 2029 [Member] 6.50% Senior Notes due 2029 6.875% Series A Mandatory Convertible Preferred Stock 6.875% Series A Mandatory Convertible Preferred Stock [Member] 6.875% Series A Mandatory Convertible Preferred Stock Variable Rate [Axis] Variable Rate [Axis] Debt Debt Instrument, Fair Value Disclosure Other derivative investments Other derivative investments Other Derivative Investments [Member] Other Derivative Investments Mortgage loans, net of allowance for credit losses of $69 and $66 as of September 30, 2024 and December 31, 2023, respectively Total commercial mortgage loans, net of valuation allowance Financing Receivable, Excluding Accrued Interest, after Allowance for Credit Loss Other fixed maturity securities, AFS Fixed Maturities Available For Sale [Member] Fixed Maturities Available For Sale [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Amortization VOBA amortization Present Value of Future Insurance Profits, Amortization Expense Other Policyholder Account Balance, Increase (Decrease) from Other Change Credit facility, increase in borrowing commitments Line Of Credit Facility, Increase (Decrease) In Maximum Borrowing Capacity Line Of Credit Facility, Increase (Decrease) In Maximum Borrowing Capacity Fixed maturity securities Fixed Maturity Securities [Member] Fixed Maturity Securities Reclassification adjustments for change in unrealized gains and losses included in net earnings, tax expense (benefit) Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax Prior debt redeemed or paid and any refinancing of debt incurred matures period (at least) Debt Instrument, Maturity Date, Debt Redeemed And Any Refinancing Incurred In Connection With Prior Debt, Minimum Period After Debt Instrument, Maturity Date, Debt Redeemed And Any Refinancing Incurred In Connection With Prior Debt, Minimum Period After East North Central East North Central US [Member] East North Central US [Member] Gross Unrealized Gains Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax Title Title Segment [Member] Title Segment Other invested assets Investments, Affiliated Bank Loan, Fair Value Disclosure Investments, Affiliated Bank Loan, Fair Value Disclosure 2024 (remaining) Long-Term Debt, Maturity, Remainder of Fiscal Year 2022 2021 Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Financing Receivable, Excluding Loans In Process, Excluding Accrued Interest, Year Three, Originated, Two Years before Current Fiscal Year Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract] Other Commitments [Domain] Other Commitments [Domain] Claim loss provision related to: Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract] Assets Assets Assets, Fair Value Disclosure [Abstract] Related Party [Domain] Related and Nonrelated Parties [Domain] Liabilities, Net transfer In (Out) of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Proceeds from issuance of senior notes Proceeds from Issuance of Senior Long-Term Debt 3.40% Senior Notes due 2030 3.40% Notes, net of discount 3.40% Notes due June 15, 2030 [Member] 3.40% Notes due June 15, 2030 Schedule of Rollforward of Deferred Sale Inducement Cost Deferred Sale Inducement Cost [Table Text Block] Schedule of Gross Carrying Value and Weighted Average Estimated Useful Lives of Other Intangible Assets Acquired Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Liability Class [Axis] Liability Class [Axis] Option Cost Measurement Input, Option Cost [Member] Measurement Input, Option Cost Total liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Price as percent of par on offering of unsecured notes Price As Percent Of Par On Offering Of Unsecured Notes Price As Percent Of Par On Offering Of Unsecured Notes Deferred tax liability Deferred Income Tax Liabilities, Net Interest accrual Liability for Future Policy Benefit, Expected Net Premium, Interest Income Change in valuation of derivatives, equity securities, preferred securities, and other assets, net Unrealized Gain (Loss) on Investments Direct Policyholder Benefits and Claims Incurred, Direct Policyholder Account Balance [Roll Forward] Policyholder Account Balance [Roll Forward] Aspida Life Re Ltd Aspida Life Re Ltd [Member] Aspida Life Re Ltd Policy loans Policy Loans, Fair Value Policy Loans, Fair Value Total number of available-for-sale securities in an unrealized loss position Debt Securities, Available-for-Sale, Unrealized Loss Position, Number of Positions Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Other intangible assets Gross Carrying Value Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Preferred stock, conversion ratio Preferred Stock, Convertible, Conversion Ratio Real Estate [Domain] Real Estate [Domain] Other long-term investments Other Investments, Fair Value Other Investments, Fair Value Reinsurance recoverable, gross of allowance for credit losses Reinsurance Recoverables, Gross Share Repurchase Program [Domain] Share Repurchase Program [Domain] Proceeds Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Measure: Measure [Axis] Balance, beginning of year Balance, end of period Deferred profit liability Deferred Profit Liability Deferred Profit Liability Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Asset Class [Domain] Asset Class [Domain] Investments: Investments [Abstract] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Market Risk Benefit Type [Domain] Market Risk Benefit Type [Domain] Market Risk Benefit Type [Domain] Total number of available-for-sale securities in an unrealized loss position twelve months or longer Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions Entity Emerging Growth Company Entity Emerging Growth Company Gross premium income Liability for Future Policy Benefit, Gross Premium Income Liabilities, fair value Liabilities, Fair Value Disclosure Other investments Other Investments [Member] Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Available-for-sale embedded derivative Available For Sale Embedded Derivatives [Member] Available-for-sale embedded derivatives. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Equity Component [Domain] Equity Component [Domain] Preferred stock, par or stated value per share (in usd per share) Preferred Stock, Par or Stated Value Per Share Debt-to-Value [Domain] Debt-to-Value [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Loans under development, fair value Loans Under Development, Fair Value Loans Under Development, Fair Value Schedule of Consolidated Investments Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Assets, Net transfer In (Out) of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Entity Shell Company Entity Shell Company Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Residential mortgage loans, percentage of total investments Residential Mortgage Receivable, Percentage of Total Percentage of the total residential loan portfolio Number of similar lawsuits filed against other entities (over) Loss Contingency, Pending Claims, Other Entities, Number Loss Contingency, Pending Claims, Other Entities, Number Statement [Table] Statement [Table] Income taxes payable Taxes Payable Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities 1.51%-2.50% Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate, Range From 1.51% To 2.50% [Member] Policyholder Account Balance, Above Guaranteed Minimum Crediting Rate Range, From 1.51% To 2.50% Consolidation Items [Domain] Consolidation Items [Domain] Cash surrender value Policyholder Account Balance, Cash Surrender Value Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Whole loans Whole Loans [Member] Whole Loans Municipals Municipals Municipals [Member] Municipals. Credit Quality Indicator Current Year [Abstract] Credit Quality Indicator Current Year [Abstract] Credit Quality Indicator Current Year Assets, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Net amount at risk Market Risk Benefit, Net Amount at Risk Stock repurchase plan period in force Share Repurchase Program, Period in Force Interest Interest Paid, Excluding Capitalized Interest, Operating Activities Level 1 Fair Value, Inputs, Level 1 [Member] Unrealized gain (loss) on foreign currency translation Other comprehensive earnings (loss) - unrealized gain (loss) on foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax 2023 2022 Financing Receivable, Excluding Accrued Interest, Year Two, Originated, Fiscal Year before Current Fiscal Year Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Less than 50.00% LTV Less Than 50 Percent [Member] Loan-to-value (LTV) ratio less than 50%. Senior Notes Senior Notes [Member] Expected future benefit payments Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted, Before Reinsurance Liability For Future Policy Benefit, Expected Future Policy Benefit, Discounted, Before Reinsurance Non-cash investing and financing activities: Noncash Investing and Financing Items [Abstract] Capitalization Deferred Sale Inducement Cost, Capitalization Additional investment in consolidated subsidiaries Payments For Proceeds From Investment In Consolidated Subsidiaries Payments For Proceeds From Investment In Consolidated Subsidiaries 2027 Long-Term Debt, Maturity, Year Three Revenue of acquiree Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Liability for Future Policy Benefit, Expected Future Policy Benefit [Roll Forward] Benefit payments Policyholder Account Balance, Benefit Payment Other Commitments [Axis] Other Commitments [Axis] Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Total title claims paid, net of recoupments Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid Schedule of Revenue from External Customers by Products and Services Revenue from External Customers by Products and Services [Table Text Block] Period from effective date Debt Instrument, Period From Effective Date Or Certain Other Conditions Are Met Debt Instrument, Period From Effective Date Or Certain Other Conditions Are Met Other long-term investments Other embedded derivatives Other Long-Term Investments [Member] Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Change in fair value of other derivatives and embedded derivatives Embedded derivative adjustment Embedded Derivative, Gain (Loss) on Embedded Derivative, Net Assets, Total (Losses) Gains Included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Credit Facility [Axis] Credit Facility [Axis] Other Reinsurer, Other [Member] Schedule of Rollforward of Deferred Policy Acquisition Costs Deferred Policy Acquisition Costs [Table Text Block] Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value [Table] Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Entity Registrant Name Entity Registrant Name Commercial mortgage-backed securities Commercial mortgage-backed securities Commercial Mortgage-Backed Securities [Member] Cash consideration Cash paid for 70% majority interest of Roar shares Payments to Acquire Businesses, Gross Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Depreciation and amortization Depreciation, Depletion and Amortization Fair Value as of Grant Date Award Grant Date Fair Value Affiliated Entity Affiliated Entity [Member] Risk-Adjusted Discount Rate Measurement Input, Risk Adjusted Discount Rate [Member] Measurement Input, Risk Adjusted Discount Rate Level 2 Fair Value, Inputs, Level 2 [Member] Geographical [Domain] Geographical [Domain] 2026 Present Value of Future Insurance Profits, Expected Amortization, Year Two Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Prepaid expenses and other assets Prepaid Expense and Other Assets Subsidiary dividends paid to non-controlling interest shareholders Payments of Ordinary Dividends, Noncontrolling Interest Restatement Determination Date: Restatement Determination Date [Axis] Title of 12(b) Security Title of 12(b) Security FNF common stock, $0.0001 par value; authorized 600 shares as of September 30, 2024 and December 31, 2023; outstanding of 274 and 273 as of September 30, 2024 and December 31, 2023, respectively Common Stock, Value, Issued Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Policyholder Account Balance, Guaranteed Minimum Crediting Rate Range [Domain] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward] Realized gains (losses) on derivatives and embedded derivatives Change In Fair Value Derivatives, Including Other Derivatives Change In Fair Value Derivatives, Including Other Derivatives Direct Lending Direct Lending [Member] Direct Lending Indexed Annuities Indexed annuities Indexed Annuity [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Schedule of Reconciliation of DAC to Condensed Consolidated Balance Sheets Schedule Of Reconciliation Of Deferred Policy Acquisition Cost To Statement Of Financial Position [Table Text Block] Schedule Of Reconciliation Of Deferred Policy Acquisition Cost To Statement Of Financial Position Additions to property and equipment, capitalized software and title plants Payments To Acquire Property, Plant, And Equipment, Software And Title Plants Payments To Acquire Property, Plant, And Equipment, Software And Title Plants Residential mortgage loans Investments, Residential Mortgage Loans, Fair Value Disclosure Fair value of the investment residential mortgage loan portfolio Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Preferred stock, $0.0001 par value; authorized 50 shares; issued and outstanding, none Preferred Stock, Value, Issued Statutory Accounting Practices [Table] Statutory Accounting Practices [Table] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Debt offering Proceeds from Issuance of Common Stock Cash and Cash Equivalents Cash and Cash Equivalents [Member] Embedded derivative asset Embedded Derivative Asset, Measurement Input Operating lease payments Operating Lease, Payments Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Cayman Islands CAYMAN ISLANDS Ownership [Domain] Ownership [Domain] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] 2024 Present Value of Future Insurance Profits, Expected Amortization, Remainder of Fiscal Year Other embedded derivatives Other embedded derivatives Embedded Derivative Financial Instruments [Member] Contingent Consideration Contingent Consideration [Member] Contingent Consideration Share Repurchase Program [Axis] Share Repurchase Program [Axis] Market risk benefit losses (gains) Market Risk Benefit, Change in Fair Value, Gain (Loss) Distributions from unconsolidated affiliates, return on investment Proceeds from Equity Method Investment, Distribution Contingent consideration arrangements, payments (up to) Contingent consideration arrangements, payments Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Expected future gross premiums Liability for Future Policy Benefit, Expected Future Gross Premium, Discounted, before Reinsurance Everlake Life Insurance Company Everlake Life Insurance Company [Member] Everlake Life Insurance Company Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Agency title insurance premiums Assumed Premiums Written Total revenues Revenues Contractholder funds Balance, beginning of year Balance, end of period Policyholder Account Balance Interest accretion rate Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate Liabilities, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Schedule of Liability for Future Policy Benefit, Mortality and Lapse, Actual and Expected Experience Schedule Of Liability for Future Policy Benefit, Mortality And Lapse, Actual And Expected Experience [Table Text Block] Schedule Of Liability for Future Policy Benefit, Mortality And Lapse, Actual And Expected Experience Entity Address, City or Town Entity Address, City or Town Thereafter Long-term Debt, Maturities, Repayments of Principal after Year Four Long-term Debt, Maturities, Repayments of Principal after Year Four Proceeds from issuance debt Proceeds from Issuance of Long-Term Debt Changes in current discount rate - future policy benefits , tax (benefit) expense OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax Allowance for credit loss Allowance for expected loan loss Beginning Balance Ending Balance Financing Receivable, Allowance for Credit Loss, Excluding Accrued Interest Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Reinsurance risk charge fee Reinsurance Risk Charge Fee Reinsurance Risk Charge Fee Other Commitments [Table] Other Commitments [Table] Condition One Condition One [Member] Condition One Remeasurement gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Loss Contingencies [Table] Loss Contingencies [Table] Business Acquisition [Axis] Business Acquisition [Axis] Schedule of Other Intangible Assets, Finite Schedule of Finite-Lived Intangible Assets [Table Text Block] Title premiums Premiums Written, Net Student Housing Student Housing [Member] Student Housing Preferred/Equity securities Equity Securities, FV-NI, Measurement Input 4.50% Notes, net of discount 4.50% unsecured notes due August 2028 4.50% Notes Due August 2028 [Member] 4.50% Notes Due August 2028 Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Term of contract, term six Derivative, Term Of Contract, Term Six Derivative, Term Of Contract, Term Six Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Liabilities Liabilities Liabilities, Fair Value Disclosure [Abstract] Commercial Mortgage Loans Commercial Portfolio Segment [Member] Revenue Recognition Revenue from Contract with Customer [Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Subtotal, Fair Value Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Treasury stock repurchased/F&G purchases of treasury stock Treasury Stock, Value, Acquired, Cost Method Schedule of Nonaccrual Loans by Amortized Cost Financing Receivable, Nonaccrual [Table Text Block] Interest accrual Deferred Profit Liability, Interest Expense Deferred Profit Liability, Interest Expense Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Total financial assets at fair value Assets, fair value Assets, Fair Value Disclosure Document Period End Date Document Period End Date Allowance for credit loss for securities in an unrealized loss position Debt Securities, Available-For-Sale, Unrealized Loss Position, Allowance For Credit Loss, Excluding Accrued Interest Debt Securities, Available-For-Sale, Unrealized Loss Position, Allowance For Credit Loss, Excluding Accrued Interest Asset Class [Axis] Asset Class [Axis] Insider Trading Arrangements [Line Items] Fixed maturity securities, available-for-sale securities, amortized cost Amortized Cost Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, before Allowance for Credit Loss Financial Instrument Performance Status [Axis] Financial Instrument Performance Status [Axis] Allowance for credit loss, probability of loss/default, using market historical loss experience, period Financing Receivable, Allowance For Credit Loss, Probability of Projected Loss, Default, Projection Model, Using Market Historical Loss, Period Financing Receivable, Allowance For Credit Loss, Probability of Projected Loss, Default, Projection Model, Using Market Historical Loss, Period Liability for Future Policy Benefit Activity [Table] Liability for Future Policy Benefit Activity [Table] Schedule of Initial Purchase Price Schedule of Business Acquisitions, by Acquisition [Table Text Block] Revenue recognized Contract with Customer, Liability, Revenue Recognized NPR before capping Net Premium Ratio Before Capping Net Premium Ratio Before Capping Document Transition Report Document Transition Report Current year Current Year Claims and Claims Adjustment Expense Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] Embedded derivative liability Embedded Derivative Liability, Measurement Input Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Entity Current Reporting Status Entity Current Reporting Status Retained Earnings Retained Earnings [Member] Ownership percentage, of acquiree prior to acquisition Subsidiary, Ownership Percentage, Noncontrolling Owner Litigation Status [Domain] Litigation Status [Domain] Gross investment income Gross Investment Income, Operating 90 days or more past due 90 days or more past due Financial Asset, Equal to or Greater than 90 Days Past Due [Member] Mortality Multiplier Measurement Input Mortality Multiplier [Member] Measurement Input Mortality Multiplier Roar Roar Joint Venture, LLC [Member] Roar Joint Venture, LLC Net Premiums Earned, Net Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Executive Category: Executive Category [Axis] Indexed annuities/indexed universal life insurance ("IUL") embedded derivatives, included in contractholder funds Indexed annuity/ IUL embedded derivatives, included in contractholder funds Indexed Annuity, IUL Embedded Derivatives Liabilities In Contract Holder Funds [Member] Indexed Annuity, IUL Embedded Derivatives Liabilities In Contract Holder Funds Available-for-sale embedded derivative Embedded Derivative, Other Long-term Investments, Available for Sale [Member] Embedded Derivative, Other Long-term Investments, Available for Sale F&G F&G [Member] F&G Other comprehensive (loss) earnings attributable to non-controlling interest, tax (benefit) expense Other Comprehensive Income (Loss), Tax, Portion Attributable To Noncontrolling Interest, Spinoff Other Comprehensive Income (Loss), Tax, Portion Attributable To Noncontrolling Interest, Spinoff Purchases of investment securities Payments to Acquire Debt Securities, Available-for-Sale Company Selected Measure Name Company Selected Measure Name