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Accounts Receivable and Loans (Details 5) (USD $) In Millions, unless otherwise specified | 3 Months Ended
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Mar. 31, 2014 | Mar. 31, 2013
Accounts Receivable and Loans Textuals [Abstract] |  |
Difference between pre- and post-modification outstanding balances | $ 0 | $ 4
U S Card Services [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Accounts | 16,000 | 31,000
Aggregated Outstanding Balance | 143 | 276
Card Member Loans [Member] | U S Card Services [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Accounts | 12,000 | 23,000
Aggregated Outstanding Balance | 96 | 172
Average basis point reduction in interest rate by class of Card Member loans | 14.00% | 13.00%
Card Member Receivables [Member] | U S Card Services [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Accounts | 4,000 | 8,000
Aggregated Outstanding Balance | $ 47 | $ 104
Average payment term extension | 12 | 12

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- Definition The average basis point reduction in interest rate by class of cardmember loan. + References No definition available. + Details
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- Definition The average period for payment term extension for cardmember receivables modified in a TDR. + References No definition available. + Details
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- Definition Difference between pre-modification and post-modification amounts of investment in financing receivables modified by troubled debt restructurings. + References No definition available. + Details
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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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- Definition Post-modification amount of investment in financing receivables modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953676-111524 + Details
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