Segment Information (Narrative) (Details)	3 Months Ended		9 Months Ended
	Dec. 29, 2017 USD ($)	Dec. 30, 2016 USD ($)	Dec. 29, 2017 USD ($) segment	Dec. 30, 2016 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			2
Segment Reporting Information [Line Items]
Net revenues	$ 1,209,000,000	$ 1,041,000,000	$ 3,624,000,000	$ 2,904,000,000
Intersegment Eliminations
Segment Reporting Information [Line Items]
Net revenues	$ 0	$ 0	$ 0	$ 0