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Accounts Receivable and Loans (Details 6) - U S Card Services [Member] Account in Thousands, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 USD ($) Account M | Jun. 30, 2014 USD ($) Account M | Jun. 30, 2015 USD ($) Account M | Jun. 30, 2014 USD ($) Account
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 13 | 15 | 27 | 31
Aggregated Outstanding Balance | $ | $ 104 | $ 123 | $ 224 | $ 266
Card Member Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 10 | 12 | 21 | 24
Aggregated Outstanding Balance | $ | $ 70 | $ 82 | $ 150 | $ 178
Average basis point reduction in interest rate by class of Card Member loans | 10.00% | 11.00% | 11.00% | 12.00%
Card Member Receivables [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 3 | 3 | 6 | 7
Aggregated Outstanding Balance | $ | $ 34 | $ 41 | $ 74 | $ 88
Average payment term extension | 12 | 12 | 12 | 12

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + 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=35738203&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=35738203&loc=SL6953676-111524 + Details
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