Employee Benefit Plans - Restricted Stock Activity (Details) - Restricted Stock - FNF Common Stock - $ / shares	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
The Omnibus Plan
Shares:
Restricted shares outstanding at beginning of period (in shares)	1,639,226	1,716,555	1,517,176
Granted (in shares)	994,548	772,189	1,006,058
Canceled (in shares)		(7,577)	(11,604)
Vested (in shares)	(792,230)	(841,941)	(795,075)
Restricted shares outstanding at end of period (in shares)	1,841,544	1,639,226	1,716,555
Weighted Average Grant Date Fair Value (in dollars per share):
Weighted average grant date fair value outstanding at beginning of period (USD per share)	$ 41.97	$ 36.26	$ 38.90
Granted (USD per share)	40.83	48.27	33.40
Canceled (USD per share)		37.20	38.93
Vested (USD per share)	41.44	36.15	37.60
Weighted average grant date fair value outstanding at end of period (USD per share)	$ 41.59	$ 41.97	$ 36.26
F&G Omnibus Plan
Shares:
Restricted shares outstanding at beginning of period (in shares)	718,641	449,870	0
Granted (in shares)	0	311,081	474,025
Canceled (in shares)	(78,551)	(12,437)	(24,155)
Vested (in shares)	(138,542)	(29,873)
Restricted shares outstanding at end of period (in shares)	501,548	718,641	449,870
Weighted Average Grant Date Fair Value (in dollars per share):
Weighted average grant date fair value outstanding at beginning of period (USD per share)	$ 40.24	$ 34.11	$ 0
Granted (USD per share)	0	48.28	34.13
Canceled (USD per share)	37.79	33.40	34.47
Vested (USD per share)	34.11	34.59
Weighted average grant date fair value outstanding at end of period (USD per share)	$ 42.31	$ 40.24	$ 34.11