Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Accounts receivable, less allowances of $29 and $26	$ 1,347				$ 1,302				$ 1,347	$ 1,302
NET SALES	$ 6,041	$ 6,153	$ 6,158	$ 5,823	$ 5,996	$ 6,204	$ 6,159	$ 5,788	24,175	24,147	$ 22,919
Meats and seafood
Disaggregation of Revenue [Line Items]
NET SALES									8,635	8,692	8,121
Dry grocery products
Disaggregation of Revenue [Line Items]
NET SALES									4,239	4,266	4,127
Refrigerated and frozen grocery products
Disaggregation of Revenue [Line Items]
NET SALES									3,898	3,799	3,653
Dairy
Disaggregation of Revenue [Line Items]
NET SALES									2,520	2,533	2,380
Equipment, disposables and supplies
Disaggregation of Revenue [Line Items]
NET SALES									2,298	2,243	2,166
Beverage products
Disaggregation of Revenue [Line Items]
NET SALES									1,315	1,306	1,268
Produce
Disaggregation of Revenue [Line Items]
NET SALES									$ 1,270	$ 1,308	$ 1,204