Segment Information (Details 2) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($) category	Jun. 30, 2014 USD ($)
Operating revenues by products and services
Number of categories of products and services (categories) \| category			4
OPERATING REVENUES	$ 4,419	$ 4,541	$ 8,870	$ 9,079
Surcharge amount on customers' bills	139	136	274	267
Strategic services
Operating revenues by products and services
Products and services categories reclassification adjustment		(9)		(19)
OPERATING REVENUES	2,332	2,289	4,652	4,560
Legacy services
Operating revenues by products and services
Products and services categories reclassification adjustment		9		19
OPERATING REVENUES	1,687	1,812	3,422	3,651
Data integration
Operating revenues by products and services
OPERATING REVENUES	142	187	281	361
Other
Operating revenues by products and services
OPERATING REVENUES	$ 258	$ 253	$ 515	$ 507

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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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 1

-Article 5

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