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Acquisitions and Divestitures Textual ( Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Business Events Textuals [Abstract] |  |  |
Card Member loans and receivables held for sale | $ 0 | $ 14,992 |
CardMember Receivables And Loans Reserves | 0 | 224 | $ 0
Total Impairment Charge | 0 | 384 | 0
Impairment Of Goodwill Prepaid Services |  | 219 |
Impairment Charge - Technology And Other Assets writedown to Fair Value |  | 165 |
Gain on sale of HFS Portfolios | (1,218) | 0 | 0
Gain on business travel joint venture transaction | 0 | $ 0 | $ 630
Costco [Member] | Other Expense [Member] |  |  |
Business Events Textuals [Abstract] |  |  |
Gain on sale of HFS Portfolios | (1,091) |  |
JetBlue [Member] | Other Expense [Member] |  |  |
Business Events Textuals [Abstract] |  |  |
Gain on sale of HFS Portfolios | $ (127) |  |

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- Definition Acquisition and discontinued operation. + References No definition available. + Details
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- Definition Card Member loans and receivables related to co-brand partnerships classified as Held for Sale + References No definition available. + Details
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- Definition Reserves for Losses related to CM Receivables and Loans Held for Sale portfolio + References No definition available. + Details
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- Definition Gain on business travel joint venture, before tax + References No definition available. + Details
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- Definition Impairment Charge related to balances of goodwill in the Prepaid Services business + References No definition available. + Details
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- Definition Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill. + References No definition available. + Details
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- Definition The cash inflow resulting from the sale of loans classified as held-for-sale, including proceeds from loans sold through mortgage securitization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3337-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3461-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 230 -Section 55 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=34726456&loc=d3e60097-112785 + Details
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- Details
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