Derivatives and Hedging Activities - Summary of Derivatives Bifurcated from their Related Borrowings (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
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| Derivative [Line Items] | ||
| Fair value of assets | $ 408 | $ 428 |
| Fair value of liabilities | (191) | (304) |
| Net asset/(liability) | 217 | 124 |
| Notional amount | 52,831,907 | 43,530,881 |
| Embedded Derivatives Classified In Debt | ||
| Derivative [Line Items] | ||
| Notional amount | $ 9,893 | $ 8,691 |
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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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Nominal or face amount used to calculate payment on derivative. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as an asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Net fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as assets, net of those classified as liabilities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Details
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