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Employee Benefit Plans - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value of options exercised	$ 8	$ 16	$ 32
Stock-based compensation cost	$ 60	49	42
Weighted average	1 year 9 months
The Omnibus Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 59
The Omnibus Plan | Restricted Stock | FNF Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of restricted stock awards granted	43	41	52
Fair value of restricted stock awards vested	$ 51	$ 38	$ 43

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