Loans, Lending Commitments and Related Allowance for Credit Losses - Loans by Type (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2020
HFI Loans
Total loans	$ 194,215	$ 174,956
ACL	762	654	$ 687	$ 835
Total loans, net	193,453	174,302
HFS Loans
Total loans	13,029	13,832
Total loans, net	13,029	13,832
Total Loans
Total loans	207,244	188,788
ACL	762	654	687	835
Total loans, net	206,482	188,134
Loans to non-U.S. borrowers, net	24,925	24,322
Corporate
HFI Loans
Total loans	6,739	5,567
ACL	212	165	199	309
HFS Loans
Total loans	6,366	8,107
Total Loans
Total loans	13,105	13,674
ACL	212	165	199	309
Secured lending facilities
HFI Loans
Total loans	32,687	31,471
ACL	167	163	177	198
HFS Loans
Total loans	4,223	3,879
Total Loans
Total loans	36,910	35,350
ACL	167	163	177	198
Commercial real estate
HFI Loans
Total loans	8,434	7,227
ACL	229	206	194	211
HFS Loans
Total loans	2,159	1,777
Total Loans
Total loans	10,593	9,004
ACL	229	206	194	211
Residential real estate
HFI Loans
Total loans	50,449	44,251
ACL	84	60	57	59
HFS Loans
Total loans	5	7
Total Loans
Total loans	50,454	44,258
ACL	84	60	57	59
Securities-based lending and Other loans
HFI Loans
Total loans	95,906	86,440
ACL	70	60	60	58
HFS Loans
Total loans	276	62
Total Loans
Total loans	96,182	86,502
ACL	$ 70	$ 60	$ 60	$ 58

Financing Receivable including Held-for-Sale, after Allowance for Credit Loss

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Financing Receivable including Held-for-Sale, before Allowance for Credit Loss

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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