Related Party Transactions - Summary of Related Party Transactions (Details) - USD ($) $ in Millions		Sep. 30, 2022		Dec. 31, 2021		Sep. 30, 2021
Assets:
Cash and due from banks	[1]	$ 944		$ 954
Interest bearing deposits with banks	[1]	13,970		47,400
Securities purchased under agreements to resell	[1]	29,825		10,514
Trading assets	[1]	21,082		24,043
Loans		61,224	[1]	55,417	[1]	$ 55,051
Other	[1]	6,474		5,439
Total assets		169,340	[1]	189,232	[1]	201,150
Liabilities:
Deposits		124,966	[1]	143,032	[1]	$ 152,368
Trading liabilities	[1]	4,840		3,023
Short-term borrowings	[1]	6,536		6,338
Long-term debt	[1]	15,696		17,236
Other	[1]	3,269		2,411
Total liabilities	[1]	155,307		172,192
Affiliated Entity
Assets:
Cash and due from banks		211		300
Interest bearing deposits with banks		241		59
Securities purchased under agreements to resell		43		594
Trading assets		257		119
Loans		3,717		2,793
Other		398		401
Total assets		4,867		4,266
Liabilities:
Deposits		14,962		9,137
Trading liabilities		74		130
Short-term borrowings		1,252		309
Long-term debt		5,511		5,511
Other		292		277
Total liabilities		$ 22,091		$ 15,364

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at September 30, 2022 and December 31, 2021. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 17, "Variable Interest Entities," for additional information. September 30, 2022December 31, 2021(in millions)AssetsLoans$127 $46 Other assets44 55 Total assets$171 $101 LiabilitiesInterest, taxes and other liabilities$26 $9 Total liabilities$26 $9