Goodwill, Capitalized Software and Other Intangible Assets 2 (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012
Projected annual amortization expense for current fiscal year and next four fiscal years
2013	$ 317
2014	309
2015	266
2016	220
2017	168
Purchased Software Products [Member]
Projected annual amortization expense for current fiscal year and next four fiscal years
2013	107
2014	101
2015	90
2016	89
2017	87
Internally Developed Software Products [Member]
Projected annual amortization expense for current fiscal year and next four fiscal years
2013	156
2014	159
2015	136
2016	105
2017	72
Other Intangible Assets [Member]
Projected annual amortization expense for current fiscal year and next four fiscal years
2013	54
2014	49
2015	40
2016	26
2017	$ 9

Amount of amortization expense expected to be recognized during the next fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275

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Amount of amortization expense expected to be recognized during the fifth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the fourth fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the third fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of amortization expense expected to be recognized during the second fiscal year following the latest fiscal year for assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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