XML 66 R54.htm IDEA: XBRL DOCUMENT v3.25.3

Investments - Schedule of Consolidated Investments (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Available-for-sale securities
Amortized Cost	$ 55,913	$ 51,681
Allowance for Expected Credit Losses	(102)	(67)
Gross Unrealized Gains	694	406
Gross Unrealized Losses	(3,004)	(3,802)
Fair Value/Carrying Value	53,501	48,218
Asset-backed securities
Available-for-sale securities
Amortized Cost	18,346	15,784
Allowance for Expected Credit Losses	(21)	(13)
Gross Unrealized Gains	198	202
Gross Unrealized Losses	(258)	(317)
Fair Value/Carrying Value	18,265	15,656
Commercial mortgage-backed securities
Available-for-sale securities
Amortized Cost	5,525	5,379
Allowance for Expected Credit Losses	(55)	(49)
Gross Unrealized Gains	67	53
Gross Unrealized Losses	(149)	(201)
Fair Value/Carrying Value	5,388	5,182
Corporates
Available-for-sale securities
Amortized Cost	25,578	24,425
Allowance for Expected Credit Losses	(25)	(5)
Gross Unrealized Gains	339	108
Gross Unrealized Losses	(2,256)	(2,832)
Fair Value/Carrying Value	23,636	21,696
Hybrids
Available-for-sale securities
Amortized Cost	596	604
Allowance for Expected Credit Losses	0	0
Gross Unrealized Gains	5	6
Gross Unrealized Losses	(19)	(29)
Fair Value/Carrying Value	582	581
Municipals
Available-for-sale securities
Amortized Cost	1,618	1,638
Allowance for Expected Credit Losses	0	0
Gross Unrealized Gains	6	3
Gross Unrealized Losses	(211)	(255)
Fair Value/Carrying Value	1,413	1,386
Residential mortgage-backed securities
Available-for-sale securities
Amortized Cost	2,975	2,869
Allowance for Expected Credit Losses	(1)	0
Gross Unrealized Gains	68	32
Gross Unrealized Losses	(71)	(105)
Fair Value/Carrying Value	2,971	2,796
U.S. Government
Available-for-sale securities
Amortized Cost	899	645
Allowance for Expected Credit Losses	0	0
Gross Unrealized Gains	7	2
Gross Unrealized Losses	(3)	(10)
Fair Value/Carrying Value	903	637
Foreign Governments
Available-for-sale securities
Amortized Cost	376	337
Allowance for Expected Credit Losses	0	0
Gross Unrealized Gains	4	0
Gross Unrealized Losses	(37)	(53)
Fair Value/Carrying Value	$ 343	$ 284

X

- Definition

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

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

X

- Definition

Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

+ Details

Name:	us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_AvailableForSaleSecuritiesFairValueToAmortizedCostBasisAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

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

X

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479130/326-30-45-1

+ Details

Name:	us-gaap_DebtSecuritiesAvailableForSaleExcludingAccruedInterest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_AssetBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=fnf_HybridsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=fnf_MunicipalsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_USGovernmentAgenciesDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtSecuritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: