Acquisitions - Additional Information (Detail) $ in Millions	1 Months Ended	3 Months Ended			12 Months Ended
	Feb. 26, 2020 Business	Dec. 28, 2019 USD ($) Business	Jun. 29, 2019 Business	Mar. 30, 2019 USD ($) Business	Dec. 28, 2019 USD ($) Business	Dec. 29, 2018 USD ($)
Business Acquisition, Acquisition Related Costs [Line Items]
Contingent consideration, liability, amount recognized						$ 25
Goodwill		$ 944			$ 944	914
Contingent consideration liability, amount paid				$ 23
Contingent consideration payments up to amount of acquisition-date liability				12	12
Contingent consideration payments in excess of acquisition-date liability				$ 11	11
Accrual recorded in merger and restructuring expenses, net					1	$ 11
Trade Name
Business Acquisition, Acquisition Related Costs [Line Items]
Intangible assets acquired		4			4
Multiple Acquisition
Business Acquisition, Acquisition Related Costs [Line Items]
Business combination consideration transferred					27
Contingent consideration, liability, amount recognized		2			2
Goodwill		22			22
Multiple Acquisition | Customer Relationships
Business Acquisition, Acquisition Related Costs [Line Items]
Intangible assets acquired		$ 1			$ 1
United States
Business Acquisition, Acquisition Related Costs [Line Items]
Number of business acquired | Business		1	2	2	5
United States | Subsequent Event
Business Acquisition, Acquisition Related Costs [Line Items]
Number of business acquired | Business	2