Goodwill and Intangible Assets By Reportable Segment (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2014
Goodwill
Goodwill	$ 9,267
Goodwill Acquired	1
Adjustments	(11)
Goodwill	9,257
Marketplaces
Goodwill
Goodwill	4,861
Goodwill Acquired	1
Adjustments	(29)
Goodwill	4,833
Payments
Goodwill
Goodwill	3,120
Goodwill Acquired	0
Adjustments	18
Goodwill	3,138
Enterprise
Goodwill
Goodwill	1,239
Goodwill Acquired	0
Adjustments	47
Goodwill	1,286
Corporate and other
Goodwill
Goodwill	47
Goodwill Acquired	0
Adjustments	(47)
Goodwill	$ 0

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=14024403&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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- Definition

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

+ 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 (a)

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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- Definition

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)

-URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267

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