Guarantee Arrangements, Pledged Assets and Repurchase Agreements - Net Credit Derivative Positions (Detail) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Credit Derivatives [Line Items] | ||
| Net position, Carrying/Fair Value | $ (22) | $ 75 |
| Notional | 4,459 | 5,521 |
| Sell-protection credit derivative positions | ||
| Credit Derivatives [Line Items] | ||
| Carrying / Fair Value | 190 | 191 |
| Notional | 8,092 | 6,827 |
| Buy-protection credit derivative positions | ||
| Credit Derivatives [Line Items] | ||
| Carrying / Fair Value | (212) | (116) |
| Notional | $ 12,551 | $ 12,348 |