Business Segment Information - Schedule of Segment Reporting Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Processing and services revenue	$ 1,067us-gaap_SalesRevenueServicesNet	$ 1,027us-gaap_SalesRevenueServicesNet
Product revenue	208us-gaap_SalesRevenueGoodsNet	207us-gaap_SalesRevenueGoodsNet
Total revenue	1,275us-gaap_Revenues	1,234us-gaap_Revenues
Operating income	314us-gaap_OperatingIncomeLoss	271us-gaap_OperatingIncomeLoss
Payments [Member]
Segment Reporting Information [Line Items]
Processing and services revenue	516	491
Product revenue	180	182
Total revenue	696	673
Operating income	191	180
Financial [Member]
Segment Reporting Information [Line Items]
Processing and services revenue	552	539
Product revenue	41	36
Total revenue	593	575
Operating income	204	185
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Processing and services revenue	(1)	(3)
Product revenue	(13)	(11)
Total revenue	(14)	(14)
Operating income	$ (81)	$ (94)

The net result for the period of deducting operating expenses from operating revenues.

No definition available.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(a))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Definition

Aggregate revenue during the period from services rendered in the normal course of business, after deducting allowances and discounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1(d))

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

+ Details

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- Details

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- Details

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- Details

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