v3.25.2
FVM - Valuation adjustments: Deferred day-1 P&L (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Deferred Day-1 Profit Or Loss [Line Items]          
Reserve balance at the beginning of the period $ 391 $ 421 $ 384 $ 421 $ 404
Profit / (loss) deferred on new transactions 68 65 59 133 101
(Profit) / loss recognized in the income statement (41) (95) (55) (135) (116)
Foreign currency translation (1) (1) (1) (2) (1)
Reserve balance at the end of the period $ 417 $ 391 $ 388 $ 417 $ 388