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Accounts Receivable and Loans (Details 5) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Interest Income Recognized And Average Balances Of Impaired Cardmember Loans And Receivables [Line Items] |  |  |  |
Interest income recognized | $ 18 | $ 18 | $ 37 | $ 38
Average balance of impaired loans | 1,159 | 1,451 | 1,210 | 1,496
U S Card Services [Member] | Cardmember Loans [Member] |  |  |  |
Interest Income Recognized And Average Balances Of Impaired Cardmember Loans And Receivables [Line Items] |  |  |  |
Interest income recognized | 14 | 14 | 29 | 30
Average balance of impaired loans | 999 | 1,242 | 1,041 | 1,271
U S Card Services [Member] | Cardmember Receivables [Member] |  |  |  |
Interest Income Recognized And Average Balances Of Impaired Cardmember Loans And Receivables [Line Items] |  |  |  |
Interest income recognized | 0 | 0 | 0 | 0
Average balance of impaired loans | 91 | 133 | 100 | 147
International Card Services [Member] | Cardmember Loans [Member] |  |  |  |
Interest Income Recognized And Average Balances Of Impaired Cardmember Loans And Receivables [Line Items] |  |  |  |
Interest income recognized | 4 | 4 | 8 | 8
Average balance of impaired loans | $ 69 | $ 76 | $ 69 | $ 78

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- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5258-111524 + Details
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- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5212-111524 + Details
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