Deposits - Noninterest and Interest-bearing (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
U.S. offices
Noninterest-bearing (included $8,168 and $8,115 at fair value)	$ 721,401	$ 711,525
Interest-bearing (included $645 and $629 at fair value)	1,412,589	1,359,932
Total deposits in U.S. offices	2,133,990	2,071,457
Non-U.S. offices
Noninterest-bearing (included $1,475 and $2,420 at fair value)	27,542	26,229
Interest-bearing (included $155 and $169 at fair value)	399,675	364,617
Total deposits in non-U.S. offices	427,217	390,846
Total deposits	2,561,207	2,462,303
Fair value
U.S. offices
Noninterest-bearing (included $8,168 and $8,115 at fair value)	8,168	8,115
Interest-bearing, fair value	645	629
Non-U.S. offices
Noninterest-bearing (included $1,475 and $2,420 at fair value)	1,475	2,420
Interest-bearing, fair value	$ 155	$ 169