Notes Payable - Narrative (Details) $ in Millions	Sep. 30, 2026 USD ($)
7.40% F&G Senior Notes, due 2028 \| Senior Notes
Debt Instrument
Interest rate, stated percentage	7.40%
6.50% F&G Senior Notes, due 2029 \| Senior Notes
Debt Instrument
Interest rate, stated percentage	6.50%
6.250% F&G Senior Notes \| Senior Notes
Debt Instrument
Interest rate, stated percentage	6.25%
7.95% F&G Senior Notes, due 2053 \| Senior Notes
Debt Instrument
Interest rate, stated percentage	7.95%
7.300% F&G Junior Notes, due 2065 \| Senior Notes
Debt Instrument
Interest rate, stated percentage	7.30%
Revolving Credit Facility \| Credit Agreement \| Credit Facility
Debt Instrument
Credit facility, maximum borrowing capacity	$ 750
Revolving Credit Facility \| FNF Credit Facility
Debt Instrument
Credit facility, maximum borrowing capacity	$ 200

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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