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Accounts Receivable and Loans (Details 7) - U S Card Services [Member] Account in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) Account	Sep. 30, 2014 USD ($) Account	Sep. 30, 2015 USD ($) Account	Sep. 30, 2014 USD ($) Account
Financing Receivable, Modifications [Line Items]
Number of Accounts | Account	2	3	9	8
Aggregated Outstanding Balance Upon Payment Default	$ 15	$ 14	$ 42	$ 49
Card Member Loans [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts | Account	1	2	6	6
Aggregated Outstanding Balance Upon Payment Default	$ 14	$ 12	$ 39	$ 40
Card Member Receivables [Member]
Financing Receivable, Modifications [Line Items]
Number of Accounts | Account	1	1	3	2
Aggregated Outstanding Balance Upon Payment Default	$ 1	$ 2	$ 3	$ 9

X

- 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 within the previous 12 months and for which there was a payment default.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 34



-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 34



-URI http://asc.fasb.org/extlink&oid=35738203&loc=SL6953682-111524

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