Short-Term Borrowings-Schedule (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Short-term Debt [Line Items]
Short-term borrowings	[1]	$ 9,914	$ 5,945
Federal funds purchased (day to day)
Short-term Debt [Line Items]
Short-term borrowings		$ 3,355	$ 0
Weighted average interest rate, point in time (percent)		5.49%	0.00%
Securities sold under repurchase agreements
Short-term Debt [Line Items]
Short-term borrowings		$ 267	$ 0
Weighted average interest rate, point in time (percent)			0.00%
Commercial paper
Short-term Debt [Line Items]
Short-term borrowings		$ 5,440	$ 4,818
Weighted average interest rate, point in time (percent)		6.28%	3.98%
Other
Short-term Debt [Line Items]
Short-term borrowings		$ 852	$ 1,127

[1] The following table summarizes assets and liabilities related to our consolidated variable interest entities ("VIEs") at December 31, 2023 and 2022. Assets and liabilities exclude intercompany balances that eliminate in consolidation. See Note 27, "Variable Interest Entities," for additional information. At December 31,20232022(in millions)AssetsLoans, net$— $162 Other assets23 44 Total assets$23 $206 LiabilitiesInterest, taxes and other liabilities$17 $22 Total liabilities$17 $22