Segment and Geographic Information (Schedule Of Assets By Geographic Location) (Details) - USD ($) $ in Millions	Apr. 03, 2020	Mar. 29, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total cash, cash equivalents and short-term investments	$ 2,263	$ 2,043
Property and equipment, net	238	663
Total operating lease assets	88
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Total cash, cash equivalents and short-term investments	1,345	1,544
Property and equipment, net	174	568
Total operating lease assets	40
International
Revenues from External Customers and Long-Lived Assets [Line Items]
Total cash, cash equivalents and short-term investments	918	499
Ireland
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	34	41
Other countries
Revenues from External Customers and Long-Lived Assets [Line Items]
Property and equipment, net	30	$ 54
Total operating lease assets	27
India
Revenues from External Customers and Long-Lived Assets [Line Items]
Total operating lease assets	11
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total operating lease assets	$ 10