Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Dec. 29, 2017	Dec. 30, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 1,342	$ 46	$ 1,197	$ 37
Foreign currency translation adjustments:
Translation adjustments	6	6	4	(16)
Reclassification adjustments for net loss included in net income	8	0	5	0
Net foreign currency translation adjustments	14	6	9	(16)
Unrealized loss on available-for-sale securities:
Unrealized loss	(2)	(2)	(2)	(3)
Reclassification adjustment for gain included in net income	(4)	0	(4)	0
Net unrealized loss on available-for-sale securities	(6)	(2)	(6)	(3)
Other comprehensive income (loss), net of taxes	8	4	3	(19)
Comprehensive income	$ 1,350	$ 50	$ 1,200	$ 18