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Accounts Receivable and Loans (Details 1) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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| Loans segment information | ||||
| Card Member loans | $ 67,238,000,000 | $ 65,229,000,000 | ||
| Less: Reserve for losses | 1,261,000,000 | 1,471,000,000 | 1,874,000,000 | 3,646,000,000 |
| Card Member loans, net | 65,977,000,000 | 63,758,000,000 | ||
| Other loans, net | 608,000,000 | 551,000,000 | ||
| Accounts Receivable and Loans Textuals [Abstract] | ||||
| Other loans, reserves | 13,000,000 | 20,000,000 | ||
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Variable Interest Enterprise [Member]
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| Loans segment information | ||||
| Card Member loans | 31,245,000,000 | 32,731,000,000 | ||
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U S Card Services [Member]
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| Loans segment information | ||||
| Card Member loans | 58,395,000,000 | 55,953,000,000 | ||
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U S Card Services [Member] | Variable Interest Enterprise [Member]
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| Accounts Receivable and Loans Textuals [Abstract] | ||||
| Gross Card Member loans available to settle the obligations of a variable interest entity | 31,200,000,000 | 32,700,000,000 | ||
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International Card Services [Member]
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| Loans segment information | ||||
| Card Member loans | 8,790,000,000 | 9,236,000,000 | ||
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Global Commercial Services [Member]
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| Loans segment information | ||||
| Card Member loans | $ 53,000,000 | $ 40,000,000 |