Card Member Receivables and Loans (Details 2) - USD ($) $ in Millions | Jun. 30, 2017 | Dec. 31, 2016 |
U.S. Consumer Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | $ 5,561 | $ 3,501 |
Total aging | 5,601 | 3,518 |
U.S. Consumer Services [Member] | Card Member Receivables [Member] | 30 to 59 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 15 | 9 |
U.S. Consumer Services [Member] | Card Member Receivables [Member] | 60 To 89 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 7 | 3 |
U.S. Consumer Services [Member] | Card Member Receivables [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 18 | 5 |
International Consumer and Network Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | 1,560 | 1,506 |
Total aging | 1,579 | 1,526 |
International Consumer and Network Services [Member] | Card Member Receivables [Member] | 30 to 59 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 7 | 6 |
International Consumer and Network Services [Member] | Card Member Receivables [Member] | 60 To 89 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 4 | 4 |
International Consumer and Network Services [Member] | Card Member Receivables [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 8 | 10 |
International Consumer and Network Services [Member] | Card Member Loans [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | 467 | 472 |
Total aging | 471 | 476 |
International Consumer and Network Services [Member] | Card Member Loans [Member] | 30 to 59 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 1 | 1 |
International Consumer and Network Services [Member] | Card Member Loans [Member] | 60 To 89 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 1 | 1 |
International Consumer and Network Services [Member] | Card Member Loans [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 2 | 2 |
Global Corporate Payments [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Total aging | 13,063 | 11,956 |
Global Corporate Payments [Member] | Card Member Receivables [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 110 | 108 |
Global Small Business Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | 1,615 | 1,202 |
Total aging | 1,633 | 1,218 |
Global Small Business Services [Member] | Card Member Receivables [Member] | 30 to 59 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 7 | 9 |
Global Small Business Services [Member] | Card Member Receivables [Member] | 60 To 89 Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 3 | 2 |
Global Small Business Services [Member] | Card Member Receivables [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | $ 8 | $ 5 |