Supplemental Financial Information (Schedule Of Property And Equipment, Net) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Mar. 30, 2012
Supplemental Financial Information [Abstract]
Computer hardware and software	$ 1,668		$ 1,640
Office furniture and equipment	177		176
Buildings	489		489
Leasehold improvements	301		284
Depreciable property and equipment, net	2,635		2,589
Less: accumulated depreciation and amortization	(1,709)		(1,663)
Depreciable propety and equipment, net	926		926
Construction in progress	101		95
Land	79		79
Property and equipment, net	1,106		1,100	[1]
Depreciation expense	$ 70	$ 67

[1] Derived from audited financial statements