Segment Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 category	Sep. 30, 2013
Operating revenues by products and services
Number of groups of products and services (categories)			4
Number of groups of products and services included in segment revenue (categories)			3
Operating revenue	$ 4,514	$ 4,515	$ 13,593	$ 13,553
Surcharge amount on customers' bills	128	119	395	368
Strategic services
Operating revenues by products and services
Operating revenue	2,310	2,212	6,889	6,562
Products and services categories reclassification adjustment		32		96
Legacy services
Operating revenues by products and services
Operating revenue	1,769	1,892	5,401	5,767
Products and services categories reclassification adjustment		10		29
Data integration
Operating revenues by products and services
Operating revenue	185	163	546	470
Other
Operating revenues by products and services
Operating revenue	$ 250	$ 248	$ 757	$ 754

Represents the number of groups of products and services of the reporting entity.

No definition available.

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- Definition

Represents the number of groups of products and services of the reporting entity that are included in the segment revenue.

+ References

No definition available.

+ Details

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- Definition

The amount of a reclassification adjustment made to prior period products and services categories amounts.

+ References

No definition available.

+ Details

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- Definition

Amount of the universal taxes and surcharges that are reflected in the statement of income (included in both operating revenues and expenses).

+ References

No definition available.

+ Details

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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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