Segment and Geographical Information (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 28, 2018 USD ($)	Dec. 29, 2017 USD ($)	Dec. 28, 2018 USD ($) segment	Dec. 29, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Segment Reporting Information [Line Items]
Net revenues	$ 1,211	$ 1,209	$ 3,542	$ 3,624
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net revenues	0	0	0	0
U.S.
Segment Reporting Information [Line Items]
Net revenues	$ 763	$ 711	$ 2,165	$ 2,103