Stockholders' Equity (Schedule of Accumulated Other Comprehensive Income) (Details) $ in Millions	9 Months Ended
	Dec. 30, 2016 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
April 1, 2016	$ 3,676	[1]
December 30, 2016	3,949
Foreign Currency Translation Adjustments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
April 1, 2016	15
Other comprehensive loss before reclassifications	(16)
December 30, 2016	(1)
Unrealized Gain on Available-For-Sale Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
April 1, 2016	7
Other comprehensive loss before reclassifications	(3)
December 30, 2016	4
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
April 1, 2016	22
Other comprehensive loss before reclassifications	(19)
December 30, 2016	$ 3

[1] Derived from audited financial statements.