Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 01, 2016		Apr. 03, 2015		Mar. 28, 2014
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	$ 4,039		$ 3,600		$ 3,641
Accumulated impairment losses	(2,762)		(2,762)		(2,762)
Goodwill, net, beginning of period	838	[1]	879
Additions	446
Foreign currency translation	(7)		(41)
Goodwill, net, end of period	1,277		838	[1]
GBS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	1,615		1,340		1,381
Accumulated impairment losses	(701)		(701)		(701)
Goodwill, net, beginning of period	639		680
Additions	285
Foreign currency translation	(10)		(41)
Goodwill, net, end of period	914		639
GIS
Changes in the carrying amount of goodwill by segment [Roll Forward]
Goodwill, gross	2,424		2,260		2,260
Accumulated impairment losses	(2,061)		(2,061)		$ (2,061)
Goodwill, net, beginning of period	199		199
Additions	161
Foreign currency translation	3		0
Goodwill, net, end of period	$ 363		$ 199

[1] Certain prior year balances were adjusted to give effect to discontinued operations as described in Note 4, for certain errors in previously issued financial statements related to income taxes as described in Note 1, and for the retrospective application of ASU 2015-17 and ASU 2016-09 as described in Note 1.