Other Assets (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Goodwill, Beginning Balance	$ 3,198us-gaap_Goodwill	$ 3,181us-gaap_Goodwill
Acquisitions	0us-gaap_GoodwillAcquiredDuringPeriod	0us-gaap_GoodwillAcquiredDuringPeriod
Dispositions	(102)	0
Other, including foreign currency translation	(72)	17
Goodwill, Ending Balance	3,024us-gaap_Goodwill	3,198us-gaap_Goodwill
U S Card Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	174	175
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	0	(1)
Goodwill, Ending Balance	174	174
International Card Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,052	1,031
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	(70)	21
Goodwill, Ending Balance	982	1,052
Global Commercial Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	1,543	1,544
Acquisitions	0	0
Dispositions	(102)	0
Other, including foreign currency translation	0	(1)
Goodwill, Ending Balance	1,441	1,543
Global Network And Merchant Services [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	160	160
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	0	0
Goodwill, Ending Balance	160	160
Corporate and Other [Member]
Goodwill [Roll Forward]
Goodwill, Beginning Balance	269	271
Acquisitions	0	0
Dispositions	0	0
Other, including foreign currency translation	(2)	(2)
Goodwill, Ending Balance	$ 267	$ 269

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (f)

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)

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