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Accounts Receivable and Loans (Details 5) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | $ 686 | $ 786
Interest income recognized | 19 | 17
U S Consumer Services [Member] | Card Member Loans [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | 505 | 587
Interest income recognized | 12 | 10
U S Consumer Services [Member] | Card Member Receivables [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | 14 | 14
Interest income recognized | 0 | 0
International Consumer and Network Services [Member] | Card Member Loans [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | 53 | 56
Interest income recognized | 4 | 4
Global Commercial Services [Member] | Card Member Loans [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | 92 | 105
Interest income recognized | 3 | 3
Global Commercial Services [Member] | Card Member Receivables [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Average balance of impaired loans | 22 | 24
Interest income recognized | $ 0 | $ 0

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