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Progress Software Corp., No. 1:23-cv-12067 Cooper v. Progress Software Corp., No. 1:23-cv-12067 [Member] Cooper v. 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Combination Disclosure [Text Block] Current Fiscal Year End Date Current Fiscal Year End Date Less: present value discount Lessee, Operating Lease, Liability, Undiscounted Excess Amount Mortgage Loans Investment In Mortgage Loans [Policy Text Block] Investment In Mortgage Loans Vesting [Axis] Vesting [Axis] URL Unearned Revenue Liabilities [Member] Unearned Revenue Liabilities PRT PRT [Member] PRT Insurance contracts Insurance Contracts [Member] Insurance Contracts [Member] Finite-lived intangible asset, useful life (years) Finite-Lived Intangible Asset, Useful Life 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] Class of Stock [Line Items] Class of Stock [Line Items] Financial Instruments with 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Intangible Assets Acquired as Part of Business Combination [Table Text Block] 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 Share-based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items] Unamortized debt issuance costs Debt Issuance Costs, Line of Credit Arrangements, Net Policyholder Account Balance [Roll Forward] Policyholder Account Balance [Roll Forward] Consecutive months with highest compensation in which benefits are based Defined Benefit Plan, Consecutive Months with Highest Compensation in which Benefits are Based Defined Benefit Plan, Consecutive Months with Highest Compensation in which Benefits are Based 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] Insurance Distribution Consulting, LLC v. Fidelity & Guaranty Life Insurance Company Insurance Distribution Consulting, LLC v. Fidelity & Guaranty Life Insurance Company [Member] Insurance Distribution Consulting, LLC v. Fidelity & Guaranty Life Insurance Company Revolving Credit Facility Revolving Credit Facility Due April 2022 Revolving Credit Facility, due April 2022 Revolving Credit Facility Due April 2022 [Member] Revolving Credit Facility Due April 2022 [Member] Other intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Other comprehensive earnings - minimum pension liability adjustment Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Other long-term investments Other Investments, Fair Value Other Investments, Fair Value Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Proceeds Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Balance, beginning of year Balance, end of year Deferred profit liability Deferred Profit Liability Deferred Profit Liability Benefits, claims, losses and settlement expenses SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses 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 Other investments Other Investments [Member] Purchased mortgage loans with credit deterioration Financing Receivable, Purchased with Credit Deterioration, Amount at Purchase Price Available-for-sale embedded derivative Available For Sale Embedded Derivatives [Member] Available-for-sale embedded derivatives. Equity Component [Domain] Equity Component [Domain] Preferred stock, par or stated value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Outstanding options, weighted average remaining contractual term (in years) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Consolidated Investments Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block] Entity Shell Company Entity Shell Company Valuation Allowance [Line Items] Valuation Allowance [Line Items] 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 Income taxes payable Taxes Payable Accounts payable and accrued liabilities Accounts payable and accrued liabilities Accounts Payable and Accrued Liabilities Counterparty Name [Axis] Counterparty Name [Axis] 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] Year one Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year, Writeoff Assets, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Equity in earnings of unconsolidated affiliates Income (Loss) from Equity Method Investments, Excluding Discontinued Operations Income (Loss) from Equity Method Investments, Excluding Discontinued Operations Net amount at risk Market Risk Benefit, Net Amount at Risk Stock repurchase program, period Share Repurchase Program, Period in Force Interest Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities 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 Options exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Statutory net income Statutory Accounting Practices, Statutory Net Income Amount (Gain) loss on sales of investments and other assets and asset impairments, net Gain (Loss) on Investments and Disposition of Other Assets, and Asset Impairments Gain (Loss) on Investments and Disposition of Other Assets, and Asset Impairments Due after five years through ten years, Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer 2028 Lessee, Operating Lease, Liability, to be Paid, Year Four Revenue from External Customers by Products and Services Revenue from External Customers by Products and Services [Table Text Block] Condition One Debt Terms, Condition One [Member] Debt Terms, Condition One Months ending at retirement or termination in which benefits are based Defined Benefit Plan, Months Ending at Retirement or Termination in which Benefits are Based Defined Benefit Plan, Months Ending at Retirement or Termination in which Benefits are Based Exercise Price Range [Axis] Exercise Price Range [Axis] Weighted average discount rate, percent Operating Lease, Weighted Average Discount Rate, Percent Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Accounting Changes and Error Corrections [Abstract] Bermuda corporate income tax net operating loss carryforward Deferred Tax Asset, Foreign, Corporate Income Tax, NOL Carryforward Deferred Tax Asset, Foreign DTA For Corporate Income Tax (CIT), NOL Carry Forward, 2023 Tax Act Other Reinsurer, Other [Member] 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] Fair Value as of Grant Date Award Grant Date Fair Value Risk-Adjusted Discount Rate Measurement Input, Risk Adjusted Discount Rate [Member] Measurement Input, Risk Adjusted Discount Rate Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Prepaid expenses and other assets Prepaid Expense and Other Assets F& G Subsidiaries F& G Subsidiaries [Member] F& G Subsidiaries Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] 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 Indexed Annuities Indexed Annuity [Member] Gross Amount SEC Schedule, 12-17, Insurance Companies, Reinsurance, Life Insurance in Force, Gross Other Deferred Tax Assets, Other Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Concentration Risk [Line Items] Concentration Risk [Line Items] 2021 Repurchase Program 2021 Repurchase Program [Member] 2021 Repurchase Program Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Cash and Cash Equivalents Cash and Cash Equivalents [Member] Operating lease payments Operating Lease, Payments SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items] Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Ownership [Domain] Ownership [Domain] Other embedded derivatives Other embedded derivatives Embedded Derivative Financial Instruments [Member] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Share Repurchase Program [Axis] Share Repurchase Program [Axis] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] Decrease in deferred tax asset related to life insurance receivables Increase (Decrease) in Deferred Tax Asset, Life Insurance Receivables Increase (Decrease) in Deferred Tax Asset, Life Insurance Receivables Life insurance and claim related adjustments Deferred Tax Asset, Insurance Reserves and Claim Related Adjustments Deferred Tax Asset, Insurance Reserves and Claim Related Adjustments Fair Value of Assets Acquired and Liabilities Assumed in Business Combinations Business Combinations Policy [Policy Text Block] Financing Receivable, Allowance for Credit Loss [Line Items] Financing Receivable, Allowance for Credit Loss [Line Items] Revenue Recognition, Milestone Method [Line Items] Revenue Recognition, Milestone Method [Line Items] Agency title insurance premiums Assumed Premiums Written Contractholder funds Balance, beginning of year Balance, end of year Policyholder Account Balance Interest accretion rate Liability for Future Policy Benefit, Weighted-Average Interest Accretion Rate 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 Proceeds from issuance debt Proceeds from Issuance of Long-Term Debt Deferred acquisition costs SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost Changes in current discount rate - future policy benefits , tax expense (benefit) Changes in current discount rate - future policy benefits OCI, Liability for Future Policy Benefit, Gain (Loss), after Reclassification Adjustment, Tax Investments, Debt and Equity Securities [Abstract] Investments, Debt and Equity Securities [Abstract] Reinsurance risk charge fee Reinsurance Risk Charge Fee Reinsurance Risk Charge Fee Canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Remeasurement gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Definite and Indefinite Lived Other Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Equity / Preferred securities Equity Securities, FV-NI, Measurement Input Financing Receivable, Allowance for Credit Loss [Table] Financing Receivable, Allowance for Credit Loss [Table] Commercial mortgage Commercial Mortgage Commercial Portfolio Segment [Member] Treasury stock repurchased Treasury stock repurchased 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 Expected amortization, 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Five Document Period End Date Document Period End Date Available-for-sale, securities in unrealized loss position, allowance for credit loss 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 Total operating lease payments, undiscounted Lessee, Operating Lease, Liability, to be Paid Fidelity National Financial Inc. Fidelity National Financial Inc. [Member] Fidelity National Financial Inc. Insider Trading Arrangements [Line Items] 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 2027 Lessee, Operating Lease, Liability, to be Paid, Year Three SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Table] Document Transition Report Document Transition Report Current year Current Year Claims and Claims Adjustment Expense Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent Redeemable non-controlling interest, ownership percentage Subsidiary, Ownership Percentage, Noncontrolling Owner Mortality Multiplier Measurement Input Mortality Multiplier [Member] Measurement Input Mortality Multiplier Roar Joint Venture, LLC Roar Joint Venture, LLC [Member] Roar Joint Venture, LLC Real Estate, Type of Property [Axis] Real Estate, Type of Property [Axis] Effective tax rate Effective Income Tax Rate, Continuing Operations, Before Equity In Earnings (Losses) Of Unconsolidated Subsidiary Effective Income Tax Rate, Continuing Operations, Before Equity In Earnings (Losses) Of Unconsolidated Subsidiary Accrued benefits Accrued Employee Benefits Purchases of investment securities Payments to Acquire Debt Securities, Available-for-Sale Company Selected Measure Name Company Selected Measure Name 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 Mortgage 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 of $32 as of December 31, 2024 and 2023, respectively Trade and notes receivables, net of allowance Notes receivable Accounts and Financing Receivable, after Allowance for Credit Loss Purchase of additional share in consolidated subsidiaries Payments for Repurchase of Redeemable Noncontrolling Interest ESPP, annual contributions per employee, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate 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] Funds Withheld for Reinsurance Funds Withheld for Reinsurance [Member] Funds Withheld for Reinsurance Debt service payments Repayment of principal borrowed Debt service payments Repayments of Long-Term Debt Cover [Abstract] Cover [Abstract] Revenue Recognition, Other Revenue Recognition, Other, Policy [Policy Text Block] Revenue Recognition, Other, Policy Collections of notes receivable Proceeds from Collection of Notes Receivable Accrual for agency premiums reported within three months, percent Accrual for Agency Premiums, Percent Reported within 3 Months Accrual for Agency Premiums, Percent Reported within 3 Months Comprehensive earnings (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Cash dividend per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Life insurance premiums, insurance and investment product fees, other, pension risk transfer Life Insurance Premiums, Insurance and Investment Product Fees, Other, Pension Risk Transfer [Member] Life Insurance Premiums, Insurance and Investment Product Fees, Other, Pension Risk Transfer Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] 2028 Present Value of Future Insurance Profits, Expected Amortization, Year Four 3.40% Notes, net of discount Three Point Four Zero Percent Unsecured Notes Due September 2022 [Member] Three Point Four Zero Percent Unsecured Notes Due September 2022 Black Scholes model Black Scholes Model [Member] Black Scholes Model [Member] Short-term investments Short-Term Investments [Member] Derivative, strike price Derivative, Price Risk Option Strike Price Thereafter Present Value of Future Insurance Profits, Expected Amortization, After Year Five Present Value of Future Insurance Profits, Expected Amortization, After Year Five Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Net (increase) decrease in trade receivables Increase (Decrease) in Accounts Receivable Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Net earnings from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Market Risk Benefits Deferred Tax Asset, Market Risk Benefit Deferred Tax Asset, Market Risk Benefit Exercise of stock options Exercise of stock options Proceeds from Stock Options Exercised Unrealized (loss) gain on investments and other financial instruments, net of adjustments to intangible assets and unearned revenue (excluding investments in unconsolidated affiliates) OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Award Timing Disclosures [Line Items] Balance, beginning of year Balance, end of year Liability for Future Policy Benefit, Expected Future Policy Benefit, before Reinsurance, after Discount Rate Change Change in fair value of reinsurance related embedded derivatives Derivative gains (losses) Derivative, Gain (Loss) on Derivative, Net Number of class action lawsuits Loss Contingency, Pending Claims, Number Tax credits Deferred Tax Assets, Tax Credit Carryforwards Revenue from Contract with Customer [Abstract] Plan Name [Domain] Plan Name [Domain] Commercial mortgage loans, percentage of investments Commercial Mortgage Loans, Percentage of Investments Commercial Mortgage Loans, Percentage of Investments United States UNITED STATES Decrease in deferred tax asset, reinsurance receivable Increase (Decrease) Deferred Tax Asset, Reinsurance Receivable Increase (Decrease) Deferred Tax Asset, Reinsurance Receivable F&G Omnibus Plan F&G Omnibus Plan [Member] F&G Omnibus Plan Secured trust deposits Contract With Customer, Liability, Customer Deposits Contract With Customer, Liability, Customer Deposits Cash Flows From Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] 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 Other intangible assets, net Intangible Assets, Net (Excluding Goodwill and Title Plants) Intangible Assets, Net (Excluding Goodwill and Title Plants) 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] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] 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 Total Loans Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, Fee, and Loan in Process Insider Trading Policies and Procedures [Line Items] Municipals US States and Political Subdivisions Debt Securities [Member] Change in Unrealized Incl in OCI Fair Value, Liability, Recurring Basis, Still Held, Unrealized Gain (Loss), OCI Management Estimates Use of Estimates, Policy [Policy Text Block] 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 Compensation Amount Outstanding Recovery Compensation Amount Other Other Long-term Debt [Member] Other Long-term Debt Entity Small Business Entity Small Business Accounts Payable and Other Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Unrealized (losses) gains 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 Vesting Period Immediate Share-Based Payment Arrangement, Tranche One [Member] 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] Reinsurance Recoverable, Expected Credit Loss Reserves Reinsurance Recoverable, Allowance for Credit Loss [Table Text Block] Residential mortgage Residential Mortgage Residential Portfolio Segment [Member] Industrial Industrial, General [Member] Industrial, General [Member] Stock options Share-Based Payment Arrangement, Option [Member] DSC ratio, amortization period Debt Service Coverage Ratio, Amortization Period Debt Service Coverage Ratio, Amortization Period Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-Sale [Table] 2025 Lessee, Operating Lease, Liability, to be Paid, Year One Premium and annuity deposits, net of reinsurance Premium and Annuity Deposits, Net of Reinsurance Premium and Annuity Deposits, Net of Reinsurance Comprehensive earnings (loss) attributable to Fidelity National Financial, Inc. common shareholders Comprehensive Income (Loss), Net of Tax, Attributable to Parent Pension Plan Pension Plan [Member] Repayments of all outstanding indebtedness under term loan credit agreement Repayments of Lines of Credit Investments Classified by Contractual Maturity Date Investments Classified by Contractual Maturity Date [Table Text Block] Award Type [Axis] Award Type [Axis] Corporates Corporates Corporate Debt Securities [Member] Schedule of Stock Options Outstanding and Exercisable Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Net increase (decrease) in accounts payable and other accrued liabilities Increase (Decrease) In Accounts Payable, Accrued Liabilities, Deferred Revenue, And Other Operating Liabilities Increase (Decrease) In Accounts Payable, Accrued Liabilities, Deferred Revenue, And Other Operating Liabilities Liabilities, Total Gains (Losses) Included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Repayments of debt Repayments of Debt ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag 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 value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Revolving Credit Facility Revolving Credit Facility [Member] Cash Flows From Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Funds held under reinsurance agreements Deferred Tax Liability, Funds Held Under Reinsurance Agreements Deferred Tax Liability, Funds Held Under Reinsurance Agreements 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 Due after ten years, Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Short-term investments Other Short-Term Investments Financial Asset, Period Past Due [Domain] Financial Asset, Aging [Domain] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards 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 Property and equipment, gross Property, Plant and Equipment, Gross Debt Instrument [Line Items] Debt Instrument [Line Items] Short-term Investments Short-term Investments Policy [Policy Text Block] Short-term Investments Policy Weighted Average Exercise Price (in dollars per share): Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Other comprehensive earnings - unrealized (loss) gain on investments and other financial instruments OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Weighted average shares outstanding FNF common stock, diluted basis (in shares) Weighted Average Number of Shares Outstanding, Diluted Statutory Accounting Practice, Jurisdiction [Axis] Statutory Accounting Practice, Jurisdiction [Axis] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Total Fidelity National Financial, Inc. shareholders’ equity Stockholders' equity attributable to parent, beginning balance Stockholders' equity attributable to parent, ending balance Equity, Attributable to Parent Less: Treasury stock, 56 shares as of December 31, 2024 and 2023, at cost Treasury stock Treasury Stock, Value Immediate annuities DPL Immediate Annuity Deferred Profit Liability [Member] Immediate Annuity Deferred Profit Liability Due in one year or less, Fair Value Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Non-income producing investment fair value 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] 2024 2023 Financing Receivable, Excluding Accrued Interest, Year One, Originated, Current Fiscal Year Schedule of Goodwill Schedule of Goodwill [Table Text Block] Call options and interest rate swaps Call Options And Interest Rate Swaps [Member] Call Options And Interest Rate Swaps Partnerships Deferred Tax Liabilities, Partnerships Deferred Tax Liabilities, Partnerships Defined contribution plan, cost recognized Defined Contribution Plan, Cost 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 Number of shares authorized for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Officers Compensation Effective Income tax reconciliation, Officers Compensation, Percent Effective Income tax reconciliation, Officers Compensation, Percent 2028 Long-Term Debt, Maturity, Year Four Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Expected amortization, 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Two Unrealized gain (loss) on investments and other financial instruments, net (excluding investments in unconsolidated affiliates) AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Loan charge offs Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss, Writeoff (Recovery) Maximum annual contributions per employee, percent Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Schedule of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Computer software Computer Software, Intangible Asset [Member] Escrow fees Escrow Fees [Member] Escrow Fees [Member] Balance adjusted for variances from expectation Liability for Future Policy Benefit, Expected Net Premium, Original Discount Rate, before Reinsurance, after Cash Flow Change Deferred Tax Asset, Capital Loss Deferred Tax Asset, Capital Loss [Member] Deferred Tax Asset, Capital Loss Estimated Amortization Expense for VOBA in Future Fiscal Periods Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Employer matching contribution, percent of match, amount per dollar Defined Contribution Plan, Employer Matching Contribution, Percent of Match, Amount per Dollar Defined Contribution Plan, Employer Matching Contribution, Percent of Match, Amount per Dollar Subsequent Event [Table] Subsequent Event [Table] Parent Company Parent Company [Member] Maximum Maximum [Member] Fixed maturity securities available-for-sale: Debt Securities, Available-for-Sale [Abstract] F&G Reinsurance Reinsurance [Text Block] Credit facility increase in borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity, Increase (Decrease) Line of Credit Facility, Maximum Borrowing Capacity, Increase (Decrease) Additional investments in non-controlling interests Payments to Noncontrolling Interests Trade and Notes Receivables Policy Loans Receivable, Policy [Policy Text Block] Depreciation Deferred Tax Liabilities, Property, Plant and Equipment Name Outstanding Recovery, Individual Name Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Title and Position [Axis] Title and Position [Axis] Award Timing Predetermined Award Timing Predetermined [Flag] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Dividends paid Dividends paid Payments of Ordinary Dividends, Common Stock Real estate technology Real Estate Technology [Member] Real Estate Technology [Member] Customer relationships Customer Relationships [Member] Forecast Forecast [Member] Net earnings per share attributable to FNF common shareholders, diluted (in usd per share) Earnings Per Share, Diluted Counterparty Name [Domain] Counterparty Name [Domain] Other assets Other Asset Commitments [Member] Other Asset Commitments Future Policy Benefits Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block] Ownership [Axis] Ownership [Axis] Vesting percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Retirement Benefits [Abstract] Employer matching contribution, percent of employees' gross pay Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Redemption percentage Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Deposit assets Deposit Contracts, Assets Issuances and benefit payments Market Risk Benefit, Issuance And Benefit Payments Market Risk Benefit, Issuance And Benefit Payments Interest credited/index credits to contractholder account balances Increase (Decrease) Interest Credited to Policy Owner Account Increase (Decrease) Interest Credited to Policy Owner Account Income tax expense Income tax expense (benefit) Income tax expense on continuing operations Net earnings from continuing operations Income Tax Expense (Benefit) Derivative investments Derivative Asset Canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period 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 Weighted average Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Interest expense Interest Expense, Operating and Nonoperating Partial Withdrawal Rates Measurement Input, Partial Withdrawals [Member] Measurement Input, Partial Withdrawals Business Acquisition [Line Items] Business Acquisition [Line Items] Investments in Unconsolidated Affiliates Equity Method Investments [Policy Text Block] Life insurance premiums, 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