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Accounts Receivable and Loans (Details 6) - U S Card Services [Member] pure in Thousands, $ in Millions | 12 Months Ended
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Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Financing Receivable, Modifications [Line Items] |  |  |
Number of Accounts (in thousands) | 11 | 11 | 21
Aggregated Outstanding Balance Upon Payment Default | $ 57 | $ 64 | $ 166
Card Member Loans [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of Accounts (in thousands) | 8 | 8 | 18
Aggregated Outstanding Balance Upon Payment Default | $ 52 | $ 52 | $ 141
Card Member Receivables [Member] |  |  |
Financing Receivable, Modifications [Line Items] |  |  |
Number of Accounts (in thousands) | 3 | 3 | 3
Aggregated Outstanding Balance Upon Payment Default | $ 5 | $ 12 | $ 25

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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 within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524 + Details
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- Definition Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953682-111524 + Details
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