Loss Contingency, Pending Claims, Other Entities, Number

No definition available.

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- 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

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ 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://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 3: 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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Balance Type:	debit
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- 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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Balance Type:	na
Period Type:	duration

- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
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- Definition

Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 942
-SubTopic 235
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477314/942-235-S99-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

+ Details

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Balance Type:	credit
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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- Definition

Amount, before allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3)(a)(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

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Balance Type:	debit
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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=fnf_BreachOfContractMember
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- Details

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- Details

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- Details

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- Details

Name:	srt_LitigationCaseAxis=fnf_CooperVProgressSoftwareCorpNo123Cv12067Member
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Commitments and Contingencies - Narrative (Details) $ in Millions		3 Months Ended
	Sep. 07, 2023 defendant	Mar. 31, 2026 USD ($) lawsuit	Dec. 31, 2025 USD ($)	Jan. 02, 2024 USD ($)
Other Commitments [Line Items]
Estimated litigation liability		$ 8	$ 7
Roar \| Loan Commitment
Other Commitments [Line Items]
Loan principal outstanding		24	$ 24
Maximum \| Roar \| Loan Commitment
Other Commitments [Line Items]
Unfunded investment commitment				$ 40
Insurance Distribution Consulting, LLC v. Fidelity & Guaranty Life Insurance Company \| Breach of Contract
Other Commitments [Line Items]
Plaintiffs claim losses amount		162
Insurance Distribution Consulting, LLC v. Fidelity & Guaranty Life Insurance Company \| Failure to Purchase Interest in Contracts
Other Commitments [Line Items]
Plaintiffs claim losses amount		$ 11
Pending Litigation \| Damages from Product Defects
Other Commitments [Line Items]
Number of class action lawsuits \| lawsuit		2
Number of similar lawsuits filed against other entities (over) \| lawsuit		150
Pending Litigation \| Cooper v. Progress Software Corp., No. 1:23-cv-12067 \| Damages from Product Defects
Other Commitments [Line Items]
Number of defendants \| defendant	5