Loans and Accounts Receivable (Details 7) pure in Thousands, $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2016
USD ($)
|
Jun. 30, 2015
USD ($)
|
Jun. 30, 2016
USD ($)
|
Jun. 30, 2015
USD ($)
|
|
| Troubled Debt Restructurings That Subsequently Defaulted [Domain] | ||||
| Financing Receivable, Modifications [Line Items] | ||||
| Number of Accounts | 2 | 4 | 4 | 7 |
| Aggregated Outstanding Balance Upon Payment Default | $ 10 | $ 16 | $ 20 | $ 27 |
| Card Member Loans [Member] | ||||
| Financing Receivable, Modifications [Line Items] | ||||
| Number of Accounts | 1 | 3 | 2 | 5 |
| Aggregated Outstanding Balance Upon Payment Default | $ 9 | $ 15 | $ 18 | $ 25 |
| Card Member Receivables [Member] | ||||
| Financing Receivable, Modifications [Line Items] | ||||
| Number of Accounts | 1 | 1 | 2 | 2 |
| Aggregated Outstanding Balance Upon Payment Default | $ 1 | $ 1 | $ 2 | $ 2 |