Card Member Receivables and Loans (Details 2) - USD ($) $ in Millions | Mar. 31, 2017 | Dec. 31, 2016 |
U.S. Consumer Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | $ 3,937 | $ 3,501 |
Total aging | 3,968 | 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 | 13 | 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 | 11 | 5 |
International Consumer and Network Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | 1,538 | 1,506 |
Total aging | 1,557 | 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 | 8 | 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 | 3 | 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 | 456 | 472 |
Total aging | 460 | 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 | 12,980 | 11,956 |
Global Corporate Payments [Member] | Card Member Receivables [Member] | 90+ Days Past Due [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Period past due | 96 | 108 |
Global Small Business Services [Member] | Card Member Receivables [Member] | | |
Financing Receivable, Recorded Investment, Aging [Abstract] | | |
Current | 1,345 | 1,202 |
Total aging | 1,361 | 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 | 8 | 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 | $ 5 | $ 5 |