Noninterest Income - Summary of Other Noninterest Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 350	$ 315	$ 1,070	$ 948
Net losses on revaluation of foreign currency instruments, net of foreign exchange forward contracts	6	(4)	7	1
Gains on total return swaps	(3)	0	25	0
Other service revenue	12	14	44	45
Other	31	25	119	97
Fund management fees
Trading Activity, Gains and Losses, Net [Line Items]
Revenue from contracts with customers	$ 16	$ 15	$ 43	$ 51