Annual report [Section 13 and 15(d), not S-K Item 405]

Outstanding Loans and Leases and Allowance for Credit Losses - Credit Card and Other Consumer - TDRs Entered into During the Period (Details)

v3.25.0.1
Outstanding Loans and Leases and Allowance for Credit Losses - Credit Card and Other Consumer - TDRs Entered into During the Period (Details) - Credit card and other consumer
$ in Millions
 12 Months Ended
Dec. 31, 2022
USD ($)
Financing Receivable, Modified [Line Items]  
Financing Receivable, Modifications, Post-Modification, Unpaid Principal Balance $ 290
Carrying value $ 298
Financing Receivable, Modifications, Pre-Modification Interest Rate 22.06%
Post-Modification Interest Rate 3.92%
Credit card  
Financing Receivable, Modified [Line Items]  
Financing Receivable, Modifications, Post-Modification, Unpaid Principal Balance $ 284
Carrying value $ 293
Financing Receivable, Modifications, Pre-Modification Interest Rate 22.34%
Post-Modification Interest Rate 3.89%
Direct/indirect consumer  
Financing Receivable, Modified [Line Items]  
Financing Receivable, Modifications, Post-Modification, Unpaid Principal Balance $ 6
Carrying value $ 5
Financing Receivable, Modifications, Pre-Modification Interest Rate 5.51%
Post-Modification Interest Rate 5.50%