|
Reserves for Losses (Details 1) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|---|
| Card Member Receivables And Related Reserves Evaluated Separately and Collectively For Impairment [Abstract] | |||
| Card Member receivables evaluated separately for impairment | $ 50 | $ 117 | $ 174 |
| Reserves on Card Member receivables evaluated separately for impairment | 38 | 91 | 118 |
| Card Member receivables evaluated collectively for impairment | 44,113 | 42,649 | 40,716 |
| Reserves on Card Member receivables evaluated collectively for impairment | $ 348 | $ 337 | $ 320 |