Revenue Recognition Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 6,934	$ 6,531	$ 6,443	$ 6,031	$ 6,041	$ 6,153	$ 6,158	$ 5,823	$ 25,939	$ 24,175	$ 24,147
Meats and seafood
Disaggregation of Revenue [Line Items]
Net sales									9,313	8,635	8,692
Dry grocery products
Disaggregation of Revenue [Line Items]
Net sales									4,427	4,239	4,266
Refrigerated and frozen grocery products
Disaggregation of Revenue [Line Items]
Net sales									4,253	3,898	3,799
Dairy
Disaggregation of Revenue [Line Items]
Net sales									2,685	2,520	2,533
Equipment, disposables and supplies
Disaggregation of Revenue [Line Items]
Net sales									2,483	2,298	2,243
Beverage products
Disaggregation of Revenue [Line Items]
Net sales									1,403	1,315	1,306
Produce
Disaggregation of Revenue [Line Items]
Net sales									$ 1,375	$ 1,270	$ 1,308