Long-Lived Assets 4 (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013
Expected annual amortization expense over next five fiscal years
2014	$ 313
2015	274
2016	228
2017	176
2018	121
Purchased Software Products [Member]
Expected annual amortization expense over next five fiscal years
2014	100
2015	89
2016	88
2017	86
2018	83
Internally Developed Software Products [Member]
Expected annual amortization expense over next five fiscal years
2014	164
2015	144
2016	113
2017	80
2018	33
Other Intangible Assets [Member]
Expected annual amortization expense over next five fiscal years
2014	49
2015	41
2016	27
2017	10
2018	$ 5

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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