Supplemental Financial Information (Schedule Of Accumulated Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Oct. 03, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of March 28, 2014	$ 194	[1]
Other comprehensive income before reclassifications	(40)
Amounts reclassified from accumulated other comprehensive income	0
Balance as of October 3, 2014	154
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of March 28, 2014	191
Other comprehensive income before reclassifications	(40)
Amounts reclassified from accumulated other comprehensive income	0
Balance as of October 3, 2014	151
Unrealized Gain On Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance as of March 28, 2014	3
Other comprehensive income before reclassifications	0
Amounts reclassified from accumulated other comprehensive income	0
Balance as of October 3, 2014	$ 3

[1] Derived from audited financial statements.