Loans and Accounts Receivable (Details 7) - U S Consumer Services [Member] pure in Thousands, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2016
USD ($)
|
Dec. 31, 2015
USD ($)
|
Dec. 31, 2014
USD ($)
|
|
| Financing Receivable, Modifications [Line Items] | |||
| Number of Accounts (in thousands) | 10 | 11 | 11 |
| Aggregated Outstanding Balance Upon Payment Default | $ 45 | $ 57 | $ 64 |
| Card Member Loans [Member] | |||
| Financing Receivable, Modifications [Line Items] | |||
| Number of Accounts (in thousands) | 7 | 8 | 8 |
| Aggregated Outstanding Balance Upon Payment Default | $ 41 | $ 52 | $ 52 |
| Card Member Receivables [Member] | |||
| Financing Receivable, Modifications [Line Items] | |||
| Number of Accounts (in thousands) | 3 | 3 | 3 |
| Aggregated Outstanding Balance Upon Payment Default | $ 4 | $ 5 | $ 12 |