Cover
| Cover | Jul. 13, 2023 | Jan. 13, 2023 |
| Cover [Abstract] | ||
| Document Type | 8-K | |
| Document Period End Date | Jul. 13, 2023 | |
| Entity Registrant Name | Fidelity National Financial, Inc. | |
| Entity File Number | 001-32630 | |
| Entity Incorporation, State or Country Code | DE | |
| Entity Tax Identification Number | 16-1725106 | |
| Entity Address, City or Town | Jacksonville | |
| Entity Address, State or Province | FL | |
| Entity Address, Postal Zip Code | 32204 | |
| Entity Address, Address Line One | 601 Riverside Avenue | |
| City Area Code | 904 | |
| Local Phone Number | 854-8100 | |
| Written Communications | false | |
| Soliciting Material | false | |
| Pre-commencement Tender Offer | false | |
| Pre-commencement Issuer Tender Offer | false | |
| Title of 12(b) Security | FNF Common Stock, $0.0001 par value | |
| Trading Symbol | FNF | |
| Security Exchange Name | NYSE | |
| Entity Emerging Growth Company | false | |
| Entity Central Index Key | 0001331875 | |
| Amendment Flag | false |