Recent Accounting Standards (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 29, 2019	Mar. 30, 2018	Mar. 31, 2017	Jun. 29, 2018	Mar. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	$ 4,731	$ 4,834	$ 4,019
Operating expenses	3,301	3,753	$ 3,266
Cumulative-effect adjustment to retained earnings (accumulated deficit)	933	$ 328			$ 1,267
Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative-effect adjustment to retained earnings (accumulated deficit)					197
Accounting Standards Update 2014-09 | Effect of Change
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Net revenues	47
Operating expenses	(12)
Cumulative-effect adjustment to retained earnings (accumulated deficit)	$ 247
Accounting Standards Update 2016-16
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Cumulative-effect adjustment to retained earnings (accumulated deficit)				$ 742	$ 742