Commitments and contingencies disclosure.

No definition available.

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- Definition

Remaining unfunded amount of commercial lending committed to dealers, in the form of construction loans.

+ References

No definition available.

+ Details

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- Definition

Unused portion of commercial lending committed to dealers, in the form of lines of credit.

+ References

No definition available.

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479041/842-20-45-4

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 53
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479589/842-20-55-53

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-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (g)(3)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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- Definition

The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 25
-Subparagraph (g)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-25

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Commitments and Contingencies - Narrative (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024
Commitments And Contingencies Disclosure [Line Items]
Lease expense under operating leases		$ 2	$ 2	$ 7	$ 7
Operating lease, weighted average remaining lease term		6 years		6 years
Operating lease, weighted average discount rate (percentage)		3.00%		3.00%
Settled litigation
Commitments And Contingencies Disclosure [Line Items]
Payments for legal settlements	$ 130
Revolving lines of credit
Commitments And Contingencies Disclosure [Line Items]
Unused balance of commercial revolving lines of credit		$ 814		$ 814
Construction Of Automobile Dealerships
Commitments And Contingencies Disclosure [Line Items]
Remaining unfunded balance for construction loans		$ 1		$ 1