Schedule of Assets Held under Finance Leases (Detail) - USD ($) $ in Millions	Dec. 28, 2019	Dec. 29, 2018
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	$ 2,459	$ 2,428
Less accumulated depreciation	(1,780)	(1,665)
Total	679	763
Assets Held Under Finance Leases
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	172	142
Less accumulated depreciation	(120)	(108)
Total	52	34
Buildings
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	221	281
Buildings | Assets Held Under Finance Leases
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	40	42
Furniture, fixtures and equipment
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	833	787
Furniture, fixtures and equipment | Assets Held Under Finance Leases
Property, Plant and Equipment [Line Items]
Assets held under finance leases, Gross	$ 132	$ 100