Debt Instrument, Accordion Feature, Increase Limit

No definition available.

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- Definition

Loss Contingency, Number Of Shares In Which Asserted Statutory Appraisal Rights Have Been Claimed

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Pending Claims, Other Entities, Number

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 440
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480327/954-440-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount awarded from other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedFromOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Number of defendants named in a legal action.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-4

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-9

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

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.

+ References

No definition available.

+ Details

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- Details

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- Details

Name:	us-gaap_CededCreditRiskAxis=fnf_KuberaReassuranceCompanyMember
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- Details

Name:	us-gaap_LitigationStatusAxis=us-gaap_PendingLitigationMember
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Balance Type:
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- Details

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- Details

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- Details

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Commitments and Contingencies - Narrative (Details) shares in Thousands, $ in Millions			1 Months Ended
	Sep. 07, 2023 lawsuit	Apr. 19, 2023 USD ($)	Aug. 31, 2020 shares	Dec. 31, 2023 USD ($) lawsuit	Dec. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)
Other Commitments [Line Items]
Estimated litigation liability				$ 10	$ 12
Escrow balances				$ 13,500	$ 18,900
Damages from Product Defects
Other Commitments [Line Items]
Similar lawsuits (more than) \| lawsuit				150
Kubera
Other Commitments [Line Items]
Note funding, maximum						$ 300
Pending Litigation \| Damages from Product Defects
Other Commitments [Line Items]
Putative class action lawsuits \| lawsuit				2
Matter of FGL Holdings
Other Commitments [Line Items]
Number of shares in which statutory appraisal rights have been claimed (in shares) \| shares			12,000
Matter of FGL Holdings \| Settled Litigation
Other Commitments [Line Items]
Interim payment for lawsuit		$ 4
Cooper v. Progress Software Corp., No. 1:23-cv-12067
Other Commitments [Line Items]
Other defendants \| lawsuit	5