Supplemental Financial Information (Schedule Of Property And Equipment, Net) (Details) (USD $) In Millions, unless otherwise specified	Oct. 03, 2014	Mar. 28, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 3,038	$ 2,939
Less: Accumulated depreciation	(1,857)	(1,823)
Total	1,181	1,116	[1]
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	79	79
Computer Hardware And Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,825	1,797
Office Furniture And Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	141	140
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	540	539
Leasehold Improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	368	356
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 85	$ 28

[1] Derived from audited financial statements.