Supplemental Financial Information (Schedule Of Property And Equipment, Net) (Details) (USD $) In Millions, unless otherwise specified	Jan. 02, 2015	Mar. 28, 2014
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 2,933	$ 2,939
Accumulated depreciation	(1,747)	(1,823)
Total	1,186	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	1,719	1,797
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	126	140
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	544	539
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	372	356
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 93	$ 28

[1] Derived from audited financial statements.