Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 28, 2018	Sep. 29, 2017	Sep. 28, 2018	Sep. 29, 2017
Statement of Comprehensive Income [Abstract]
Net loss	$ (8)	$ (12)	$ (68)	$ (145)
Other comprehensive income (loss), net of taxes:
Foreign currency translation adjustments	1	0	(23)	(2)
Reclassification adjustments for gain included in net loss	0	(3)	0	(3)
Net foreign currency translation adjustments	1	(3)	(23)	(5)
Other comprehensive income from equity method investee	2	0	2	0
Other comprehensive income (loss), net of taxes	3	(3)	(21)	(5)
Comprehensive loss	$ (5)	$ (15)	$ (89)	$ (150)