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Derivatives and Hedging - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
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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 maximum risk of loss for credit protection related to Pillars synthetic CDO transaction. + References No definition available. + Details
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