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Loans and Accounts Receivable (Details 5) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | $ 757 | $ 760 | $ 859
Interest income recognized | 81 | 73 | 65
U S Consumer Services [Member] | Card Member Loans [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | 559 | 569 | 633
Interest income recognized | 53 | 48 | 39
U S Consumer Services [Member] | Card Member Receivables [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | 14 | 13 | 19
Interest income recognized | 0 | 0 | 0
International Consumer and Network Services [Member] | Card Member Loans [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | 53 | 54 | 62
Interest income recognized | 15 | 14 | 16
Global Commercial Services [Member] | Card Member Loans [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | 103 | 104 | 117
Interest income recognized | 13 | 11 | 10
Global Commercial Services [Member] | Card Member Receivables [Member] |  |  |
Financing Receivable Impaired [Line Items] |  |  |
Average balance of impaired loans | 28 | 20 | 28
Interest income recognized | $ 0 | $ 0 | $ 0

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