Schedule of Disaggregation of Revenue (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 28, 2019	Sep. 29, 2018
Disaggregation of Revenue [Line Items]
Net sales	$ 6,531	$ 6,153	$ 19,005	$ 18,134
Meats and seafood
Disaggregation of Revenue [Line Items]
Net sales	2,352	2,198	6,849	6,484
Dry grocery products
Disaggregation of Revenue [Line Items]
Net sales	1,100	1,070	3,254	3,181
Refrigerated and frozen grocery products
Disaggregation of Revenue [Line Items]
Net sales	1,054	979	3,076	2,896
Dairy
Disaggregation of Revenue [Line Items]
Net sales	689	646	1,955	1,906
Equipment, disposables and supplies
Disaggregation of Revenue [Line Items]
Net sales	628	594	1,822	1,722
Beverage products
Disaggregation of Revenue [Line Items]
Net sales	352	337	1,029	991
Produce
Disaggregation of Revenue [Line Items]
Net sales	$ 356	$ 329	$ 1,020	$ 954