v3.24.4
Loan Receivables (Schedule of Gross Principal Charge-offs) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Allowance for Credit Loss, Writeoff $ 4,927 $ 2,702 $ 2,534
Credit Card Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Revolving, Writeoff 4,481    
Financing Receivable, Allowance for Credit Loss, Writeoff 4,481 2,417 2,255
Total Other Loans [Member] | Private Student Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 0    
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 4    
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 17    
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 21    
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 24    
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 89    
Financing Receivable, Allowance for Credit Loss, Writeoff 155 126 89
Total Other Loans [Member] | Personal Loans [Member]      
Accounts, Notes, Loans and Financing Receivable [Line Items]      
Financing Receivable, Year One, Originated, Current Fiscal Year, Writeoff 19    
Financing Receivable, Year Two, Originated, Fiscal Year before Current Fiscal Year, Writeoff 119    
Financing Receivable, Year Three, Originated, Two Years before Current Fiscal Year, Writeoff 81    
Financing Receivable, Year Four, Originated, Three Years before Current Fiscal Year, Writeoff 33    
Financing Receivable, Year Five, Originated, Four Years before Current Fiscal Year, Writeoff 24    
Financing Receivable, Originated, More than Five Years before Current Fiscal Year, Writeoff 14    
Financing Receivable, Allowance for Credit Loss, Writeoff $ 290 $ 159 $ 190