Accounts Receivable and Loans (Details 6) - U S Card Services [Member] Account in Thousands, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($) Account M	Jun. 30, 2014 USD ($) Account M	Jun. 30, 2015 USD ($) Account M	Jun. 30, 2014 USD ($) Account
Financing Receivable, Modifications [Line Items]
Number of Accounts	13	15	27	31
Aggregated Outstanding Balance \| $	$ 104	$ 123	$ 224	$ 266
Card Member Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts	10	12	21	24
Aggregated Outstanding Balance \| $	$ 70	$ 82	$ 150	$ 178
Average basis point reduction in interest rate by class of Card Member loans	10.00%	11.00%	11.00%	12.00%
Card Member Receivables [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts	3	3	6	7
Aggregated Outstanding Balance \| $	$ 34	$ 41	$ 74	$ 88
Average payment term extension	12	12	12	12

The average basis point reduction in interest rate by class of cardmember loan.

No definition available.

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- Definition

The average period for payment term extension for cardmember receivables modified in a TDR.

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 33

-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953676-111524

+ Details

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- Definition

Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

+ Details

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- Details

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- Details

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