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Derivatives and Hedging - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Notional value	$ 231	$ 197
Derivative expiration dates	2026-03	2025-03
Derivative maximum risk of loss	$ 17	$ 17
Foreign Exchange Future [Member]
Derivative [Line Items]
Notional value	$ 1,700	$ 1,800
Derivative expiration dates	2026-03	2025-03
Forward Foreign Currency Exchange Contracts [Member]
Derivative [Line Items]
Notional value	$ 3,000	$ 3,600
Derivative expiration dates	2026-03	2025-03
Forward Foreign Currency Exchange Contracts [Member] | Other Liabilities [Member]
Derivative [Line Items]
Other liabilities, fair value	$ 1	$ 35

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- Definition

Derivative Expiration Dates.

+ References

No definition available.

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- Definition

Derivative maximum risk of loss for credit protection related to Pillars synthetic CDO transaction.

+ References

No definition available.

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- Definition

Aggregate fair value of all derivative liabilities designated as hedging instruments. Includes instruments designated as cash flow hedges, fair value hedges, and hedges of net investments in foreign operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
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- 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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 20
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-Publisher FASB
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- Definition

Nominal or face amount used to calculate payment on derivative.

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-Topic 815
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