Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Consolidated Statements of Cash Flows [Abstract] | |||
| Sale of premises and equipment | $ 2 | $ 42 | $ 3 |
| Transfer of Card Member loans and receivables to Card Member loans and receivables held for sale | 0 | 14,524 | 0 |
| Gain on business travel joint venture transaction | $ 0 | $ 0 | $ 630 |