Related Party Transactions - Summary of Related Party Transactions (Details) - USD ($) $ in Millions		Jun. 30, 2023		Dec. 31, 2022		Jun. 30, 2022
Assets:
Cash and due from banks	[1]	$ 831		$ 1,004
Interest bearing deposits with banks	[1]	29,476		17,744
Securities purchased under agreements to resell	[1]	12,519		23,085
Trading assets	[1]	19,391		21,730
Loans, net		57,340	[1]	58,796	[1]	$ 61,264
Other	[1]	6,182		6,754
Total assets		166,928	[1]	164,655	[1]	171,232
Liabilities:
Deposits		121,636	[1]	123,223	[1]	$ 127,263
Trading liabilities	[1]	2,699		2,803
Short-term borrowings	[1]	8,227		5,945
Long-term debt	[1]	19,671		17,591
Other	[1]	3,038		2,980
Total liabilities	[1]	155,271		152,542
Related Party
Assets:
Cash and due from banks		290		313
Interest bearing deposits with banks		118		21
Securities purchased under agreements to resell		569		756
Trading assets		113		20
Loans, net		3,067		3,557
Other		577		744
Total assets		4,734		5,411
Liabilities:
Deposits		11,769		11,357
Trading liabilities		62		110
Short-term borrowings		1,374		1,009
Long-term debt		6,010		6,011
Other		300		326
Total liabilities		$ 19,515		$ 18,813

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at June 30, 2023 and December 31, 2022. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 17, "Variable Interest Entities," for additional information. June 30, 2023December 31, 2022(in millions)AssetsLoans, net$186 $162 Other assets40 44 Total assets$226 $206 LiabilitiesInterest, taxes and other liabilities$35 $22 Total liabilities$35 $22