REVENUE RECOGNITION - Disaggregated Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2021	Dec. 27, 2020	Dec. 29, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 14,777,458	$ 12,091,901	$ 11,409,219
Fresh
Disaggregation of Revenue [Line Items]
Net sales	9,931,231	8,942,589
Prepared
Disaggregation of Revenue [Line Items]
Net sales	3,241,002	2,018,621
Export
Disaggregation of Revenue [Line Items]
Net sales	917,959	603,892
Other
Disaggregation of Revenue [Line Items]
Net sales	687,266	526,799
U.S.
Disaggregation of Revenue [Line Items]
Net sales	9,113,879	7,496,017	7,636,716
U.S. | Fresh
Disaggregation of Revenue [Line Items]
Net sales	7,264,448	6,137,264
U.S. | Prepared
Disaggregation of Revenue [Line Items]
Net sales	898,614	714,563
U.S. | Export
Disaggregation of Revenue [Line Items]
Net sales	459,371	306,478
U.S. | Other
Disaggregation of Revenue [Line Items]
Net sales	491,446	337,712
U.K. and Europe
Disaggregation of Revenue [Line Items]
Net sales	3,934,062	3,274,292	2,383,793
U.K. and Europe | Fresh
Disaggregation of Revenue [Line Items]
Net sales	1,151,330	1,594,373
U.K. and Europe | Prepared
Disaggregation of Revenue [Line Items]
Net sales	2,214,180	1,237,486
U.K. and Europe | Export
Disaggregation of Revenue [Line Items]
Net sales	458,588	297,414
U.K. and Europe | Other
Disaggregation of Revenue [Line Items]
Net sales	109,964	145,019
Mexico
Disaggregation of Revenue [Line Items]
Net sales	1,729,517	1,321,592	$ 1,388,710
Mexico | Fresh
Disaggregation of Revenue [Line Items]
Net sales	1,515,453	1,210,952
Mexico | Prepared
Disaggregation of Revenue [Line Items]
Net sales	128,208	66,572
Mexico | Export
Disaggregation of Revenue [Line Items]
Net sales	0	0
Mexico | Other
Disaggregation of Revenue [Line Items]
Net sales	$ 85,856	$ 44,068