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Loans and Accounts Receivable (Details 6) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 USD ($) M | Sep. 30, 2015 USD ($) M | Sep. 30, 2016 USD ($) M | Sep. 30, 2015 USD ($) M
Troubled Debt Restructurings |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 10,000 | 13,000 | 30,000 | 40,000
Aggregated Outstanding Balance | $ 85 | $ 106 | $ 257 | $ 329
Card Member Loans [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 8,000 | 10,000 | 23,000 | 31,000
Aggregated Outstanding Balance | $ 56 | $ 69 | $ 163 | $ 218
Average basis point reduction in interest rate by class of Card Member loans | 9.00% | 9.00% | 10.00% | 10.00%
Card Member Receivables [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Accounts | 2,000 | 3,000 | 7,000 | 9,000
Aggregated Outstanding Balance | $ 29 | $ 37 | $ 94 | $ 111
Average payment term extension | M | 19 | 12 | 17 | 12

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