Segment Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Operating revenues by products and services
Number of groups of products and services			3
Total operating revenues	$ 4,406	$ 1,772	$ 6,102	$ 3,572
Surcharge amount on customers' bills			150	61
Strategic services
Operating revenues by products and services
Total operating revenues	1,737	507	2,276	1,009
Legacy services
Operating revenues by products and services
Total operating revenues	2,265	1,083	3,256	2,203
Data integration
Operating revenues by products and services
Total operating revenues	151	43	182	83
Other.
Operating revenues by products and services
Total operating revenues	$ 253	$ 139	$ 388	$ 277

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

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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).

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 1

Reference 2: 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=6880815&loc=d3e20235-122688

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