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Non-Interest Revenue and Expense Detail (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Details Of Certain Statements Of Income Lines Details [Abstract] |  |  |  |
Foreign currency conversion fee revenue | $ 222 | $ 227 | $ 433 | $ 440
Delinquency fees | 194 | 174 | 389 | 355
Loyalty Partner-related fees | 88 | 95 | 179 | 186
Service fees | 95 | 90 | 182 | 180
Other | 33 | 38 | 68 | 81
Total other commissions and fees | $ 632 | $ 624 | $ 1,251 | $ 1,242

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- Definition Represents fees generated by the Loyalty Partner business. + References No definition available. + Details
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- Definition Fee and commission revenue earned from sources not otherwise specified in the existing taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 13 -Article 9 + Details
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