v3.26.1
FVM - Valuation adjustments: Deferred day-1 P&L (Detail) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Deferred Day-1 Profit Or Loss [Line Items]    
Reserve balance at the beginning of the period $ 446 $ 421
Profit / (loss) deferred on new transactions 191 133
(Profit) / loss recognized in the income statement (166) (135)
Foreign currency translation 0 (2)
Reserve balance at the end of the period $ 472 $ 417