Accounts Receivable and Loans (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013 Account	Dec. 31, 2012 Account	Dec. 31, 2011 Account
Financing Receivable, Modifications [Line Items]
Number of Accounts (in thousands)	80,000	143,000	197,000
Aggregated Outstanding Balance	$ 695	$ 1,204	$ 1,512
Accounts Receivable and Loans Textuals [Abstract]
Difference between pre- and post-modification outstanding balances	4	24	59
Card Member Loans [Member] \| U S Card Services [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts (in thousands)	60,000	106,000	147,000
Aggregated Outstanding Balance	448	779	1,110
Card Member Receivables [Member] \| U S Card Services [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts (in thousands)	20,000	37,000	50,000
Aggregated Outstanding Balance	$ 247	$ 425	$ 402

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Difference between pre-modification and post-modification amounts of investment in financing receivables modified by troubled debt restructurings.

+ 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=28368275&loc=SL6953676-111524

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- Definition

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

+ References

+ Details

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