SEGMENT INFORMATION - SCHEDULE OF NET SALES AND EARNINGS BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2022	Jul. 04, 2021	Jul. 03, 2022	Jul. 04, 2021
Segment Reporting Information [Line Items]
Net sales	$ 2,372,582	$ 1,989,422	$ 5,038,803	$ 4,285,370
Operating profit	456,531	456,675	1,177,521	1,009,719
Cost associated with business realignment activities	699	3,469	1,980	10,396
Interest expense, net	33,413	31,065	66,592	67,501
Other (income) expense, net	19,658	7,194	30,065	9,608
Income before income taxes	403,460	418,416	1,080,864	932,610
Operating Segments
Segment Reporting Information [Line Items]
Operating profit	686,997	608,088	1,532,162	1,303,488
Operating Segments | North America Confectionery
Segment Reporting Information [Line Items]
Net sales	1,909,101	1,690,372	4,126,145	3,675,788
Operating profit	618,864	554,488	1,400,749	1,197,093
Operating Segments | North America Salty Snacks
Segment Reporting Information [Line Items]
Net sales	256,297	128,203	482,419	249,621
Operating profit	37,433	26,041	58,734	51,419
Operating Segments | International
Segment Reporting Information [Line Items]
Net sales	207,184	170,847	430,239	359,961
Operating profit	30,700	27,559	72,679	54,976
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Unallocated corporate expense	188,929	151,329	339,202	289,042
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated mark-to-market losses (gains) on commodity derivatives	40,838	(3,385)	13,459	(5,669)
Cost associated with business realignment activities	$ 699	$ 3,469	$ 1,980	$ 10,396