Property Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Jan. 03, 2020	Dec. 29, 2018	Dec. 28, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	$ 630
Less: accumulated depreciation and amortization	343
Property, plant and equipment, net, including finance lease ROU assets	287
Property, plant and equipment, gross			$ 586
Less: accumulated depreciation and amortization			(349)
Property, plant and equipment, net		$ 238	237
Computers and other equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	259
Property, plant and equipment, gross			233
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	203
Property, plant and equipment, gross			206
Office furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	37
Property, plant and equipment, gross			36
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	23
Property, plant and equipment, gross			56
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	4
Property, plant and equipment, gross			40
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross, including finance lease ROU assets	$ 104
Property, plant and equipment, gross			$ 15