v3.24.4
Derivatives and Hedging Activities (Schedule of Impact of the Derivative Instruments on Income) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Derivative Instruments, Gain (Loss) [Line Items]      
Amounts reclassified from OCI into earnings, cash flow hedges $ (82) $ (4) $ (3)
Interest Expense [Member] | Long-term Borrowings [Member] | Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Total amounts of income and expense line items presented in the consolidated statements of income, where the effects of fair value or cash flow hedges are recorded (855) (606) (473)
Interest Expense [Member] | Long-term Borrowings [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amounts reclassified from OCI into earnings, cash flow hedges 9 (2) (3)
Gains (losss) on hedged items, fair value hedges (19) 66 246
Gains (losses) on interest rate swap, fair value hedges (80) (70) (93)
Total gains (losses) on fair value hedges (99) (4) 153
Interest Expense [Member] | Long-term Borrowings [Member] | Not Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   0  
Interest Income | Credit Card Loans [Member] | Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Total amounts of income and expense line items presented in the consolidated statements of income, where the effects of fair value or cash flow hedges are recorded 14,438 10,632 8,717
Interest Income | Credit Card Loans [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amounts reclassified from OCI into earnings, cash flow hedges (91) (2) 0
Gains (losss) on hedged items, fair value hedges 0 0 0
Gains (losses) on interest rate swap, fair value hedges 0 0 0
Total gains (losses) on fair value hedges 0 0 0
Interest Income | Credit Card Loans [Member] | Not Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   0  
Other Income [Member] | Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Total amounts of income and expense line items presented in the consolidated statements of income, where the effects of fair value or cash flow hedges are recorded 85 75 66
Other Income [Member] | Designated as Hedges [Member] | Interest Rate Swaps [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Amounts reclassified from OCI into earnings, cash flow hedges 0 0 0
Gains (losss) on hedged items, fair value hedges 0 0 0
Gains (losses) on interest rate swap, fair value hedges 0 0 0
Total gains (losses) on fair value hedges $ 0 0 $ 0
Other Income [Member] | Not Designated as Hedges [Member]      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net   $ 1