Goodwill and Purchased Intangible Assets - Schedule of Goodwill (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Goodwill [Roll Forward]
Goodwill	$ 2,767us-gaap_GoodwillGross	$ 2,761us-gaap_GoodwillGross
Accumulated Impairment Losses	(7)		(7)
Additions	2us-gaap_GoodwillAcquiredDuringPeriod
Impairment	0us-gaap_GoodwillImpairmentLoss
Other	(8)us-gaap_GoodwillOtherChanges
Total	2,754us-gaap_Goodwill		2,760us-gaap_Goodwill
Financial Services [Member]
Goodwill [Roll Forward]
Goodwill	1,493	1,491
Accumulated Impairment Losses	0		0
Additions	0
Other	2
Total	1,491		1,493
Retail Solutions [Member]
Goodwill [Roll Forward]
Goodwill	581	581
Accumulated Impairment Losses	(7)		(7)
Additions	0
Other	0
Total	574		574
Hospitality and Specialty Retail [Member]
Goodwill [Roll Forward]
Goodwill	669	666
Accumulated Impairment Losses	0		0
Additions	2
Other	5
Total	666		669
Emerging Industries [Member]
Goodwill [Roll Forward]
Goodwill	24	23
Accumulated Impairment Losses	0		0
Additions	0
Other	1
Total	$ 23		$ 24

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

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Amount before 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.

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

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