Goodwill And Intangible Assets, Net (Changes In The Carrying Amount Of Goodwill) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 30, 2014
Goodwill [Line Items]
Beginning Balance	$ 9,927
Goodwill acquired	14
Acquisition accounting and other	445
Foreign currency translation adjustments and other	45
Ending Balance	10,431
Distribution Solutions [Member]
Goodwill [Line Items]
Beginning Balance	8,078
Goodwill acquired	14
Acquisition accounting and other	445
Foreign currency translation adjustments and other	41
Ending Balance	8,578
Technology Solutions [Member]
Goodwill [Line Items]
Beginning Balance	1,849
Goodwill acquired	0
Acquisition accounting and other	0
Foreign currency translation adjustments and other	4
Ending Balance	$ 1,853