Loans, Lending Commitments and Related Allowance for Credit Losses - Loans by Type (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
HFI Loans
Total loans	$ 182,926	$ 174,956
ACL	679	654	$ 762	$ 835
Total loans, net	182,247	174,302
HFS Loans
Total loans	14,013	13,832
Total loans, net	14,013	13,832
Total Loans
Total loans	196,939	188,788
ACL	679	654	762	835
Total loans, net	196,260	188,134
Loans to non-U.S. borrowers, net	24,286	24,322
Corporate
HFI Loans
Total loans	6,105	5,567
ACL	170	165	250	309
HFS Loans
Total loans	7,069	8,107
Total Loans
Total loans	13,174	13,674
ACL	170	165	250	309
Secured lending facilities
HFI Loans
Total loans	29,896	31,471
ACL	172	163	193	198
HFS Loans
Total loans	4,661	3,879
Total Loans
Total loans	34,557	35,350
ACL	172	163	193	198
Commercial real estate
HFI Loans
Total loans	8,276	7,227
ACL	203	206	206	211
HFS Loans
Total loans	1,986	1,777
Total Loans
Total loans	10,262	9,004
ACL	203	206	206	211
Residential real estate
HFI Loans
Total loans	47,236	44,251
ACL	73	60	54	59
HFS Loans
Total loans	6	7
Total Loans
Total loans	47,242	44,258
ACL	73	60	54	59
Securities-based lending and Other loans
HFI Loans
Total loans	91,413	86,440
ACL	61	60	59	58
HFS Loans
Total loans	291	62
Total Loans
Total loans	91,704	86,502
ACL	$ 61	$ 60	$ 59	$ 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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