v3.26.1
Derivative instruments - Impact of Hedging Derivatives Used in Net Investment Hedging Relationships (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments, Gain (Loss) [Line Items]        
Cash flow hedges, Gain or (loss) recognized in accumulated OCI on derivatives $ (3) $ (7) $ (34) $ (6)
Cash flow hedges, Gain or (loss) reclassified from accumulated OCI into income (11) (1) (17) (4)
FX contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Net investment hedges, Gain or (loss) recognized in accumulated OCI on derivatives 90 (735) 312 (1,111)
Net investment hedges, Gain or (loss) reclassified from accumulated OCI into income 0 0 0 21
Cash flow hedges, Gain or (loss) recognized in accumulated OCI on derivatives 6 (7) (10) (6)
Cash flow hedges, Gain or (loss) reclassified from accumulated OCI into income (12) (1) (17) (4)
Interest rate contracts        
Derivative Instruments, Gain (Loss) [Line Items]        
Cash flow hedges, Gain or (loss) recognized in accumulated OCI on derivatives (9) 0 (24) 0
Cash flow hedges, Gain or (loss) reclassified from accumulated OCI into income $ 1 $ 0 $ 0 $ 0