Supplementary Information (Property and Equipment) (Details) - USD ($) $ in Millions	Jun. 29, 2018	Mar. 30, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 1,984	$ 1,990
Accumulated depreciation and amortization	(1,226)	(1,212)
Total property and equipment, net	758	778	[1]
Land
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	65	66
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	1,083	1,081
Office furniture and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	106	110
Buildings
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	365	365
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	328	339
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 37	$ 29

[1] Derived from audited financial statements.