Supplemental Balance Sheet Details - Summary of Property and Equipment (Details) - USD ($) $ in Millions	Jan. 03, 2021	Dec. 29, 2019	Jan. 01, 2019	Dec. 30, 2018
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 1,600	$ 1,457
Accumulated depreciation	(678)	(568)
Total property and equipment, net	922	889	$ 834	$ 1,075
Leasehold improvements
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	645	622
Machinery and equipment
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	461	401
Computer hardware and software
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	305	272
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	46	45
Buildings
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	44	44
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment, gross	$ 99	$ 73