Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
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 - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Unpaid Principal Balance $ 321 $ 380 $ 320
Carrying Value $ 314 $ 376 $ 315
Pre-Modification Interest Rate 16.70% 18.42% 18.45%
Post-Modification Interest Rate 5.65% 5.34% 5.22%
Credit card      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Unpaid Principal Balance $ 269 $ 340 $ 278
Carrying Value $ 277 $ 355 $ 292
Pre-Modification Interest Rate 18.16% 19.18% 19.49%
Post-Modification Interest Rate 5.63% 5.35% 5.24%
Direct/indirect consumer      
Financing Receivable, Troubled Debt Restructuring [Line Items]      
Unpaid Principal Balance $ 52 $ 40 $ 42
Carrying Value $ 37 $ 21 $ 23
Pre-Modification Interest Rate 5.83% 5.23% 5.10%
Post-Modification Interest Rate 5.83% 5.21% 4.95%