Goodwill And Intangible Assets, Net (Changes In The Carrying Amount Of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
Dec. 31, 2014
Goodwill [Line Items]
Beginning balance	$ 9,927us-gaap_Goodwill
Goodwill acquired	26us-gaap_GoodwillAcquiredDuringPeriod
Acquisition accounting	484
Foreign currency translation adjustments and other	(481)us-gaap_GoodwillTranslationAdjustments
Ending balance	9,956us-gaap_Goodwill
Distribution Solutions [Member]
Goodwill [Line Items]
Beginning balance	8,078
Goodwill acquired	26
Acquisition accounting	484
Foreign currency translation adjustments and other	(466)
Ending balance	8,122
Technology Solutions [Member]
Goodwill [Line Items]
Beginning balance	1,849
Goodwill acquired	0
Acquisition accounting	0
Foreign currency translation adjustments and other	(15)
Ending balance	$ 1,834

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (g)

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 25

-Paragraph 16

-URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e961-128460

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Amount of increase (decrease) from foreign currency translation adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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