Loans and Card Member Receivables (Details 5) account in Thousands, $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
|
Sep. 30, 2021
USD ($)
account
|
Sep. 30, 2020
USD ($)
account
|
Sep. 30, 2021
USD ($)
account
|
Sep. 30, 2020
USD ($)
account
|
|
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||||
| Number of Accounts | account | 6 | 6 | 28 | 16 |
| Aggregated Outstanding Balance Upon Default | $ | $ 43 | $ 49 | $ 205 | $ 120 |
| Card Member Loans | ||||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||||
| Number of Accounts | account | 4 | 4 | 20 | 11 |
| Aggregated Outstanding Balance Upon Default | $ | $ 32 | $ 32 | $ 148 | $ 84 |
| Card Member Receivables | ||||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||||
| Number of Accounts | account | 1 | 1 | 5 | 3 |
| Aggregated Outstanding Balance Upon Default | $ | $ 10 | $ 16 | $ 48 | $ 34 |
| Other Loans | ||||
| Financing Receivable, Troubled Debt Restructuring [Line Items] | ||||
| Number of Accounts | account | 1 | 1 | 3 | 2 |
| Aggregated Outstanding Balance Upon Default | $ | $ 1 | $ 1 | $ 9 | $ 2 |