SEGMENT INFORMATION - SCHEDULE OF NET SALES AND EARNINGS BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jul. 02, 2023	Jun. 30, 2024	Jul. 02, 2023
Segment Reporting Information [Line Items]
Net sales	$ 2,074,480	$ 2,490,280	$ 5,327,229	$ 5,477,894
Operating profit	287,821	560,665	1,345,921	1,360,589
Restructuring and related cost	39,000	1,517	55,666	3,866
Interest expense, net	41,373	36,661	81,195	74,346
Other (income) expense, net	574	84,484	32,594	87,467
Income before income taxes	245,874	439,520	1,232,132	1,198,776
Operating Segments
Segment Reporting Information [Line Items]
Operating profit	541,710	742,032	1,571,362	1,731,623
Operating Segments | North America Confectionery
Segment Reporting Information [Line Items]
Net sales	1,579,826	1,993,079	4,287,136	4,445,244
Operating profit	464,496	657,178	1,412,692	1,544,928
Operating Segments | North America Salty Snacks
Segment Reporting Information [Line Items]
Net sales	289,894	272,365	565,000	542,350
Operating profit	52,204	43,753	90,910	90,545
Operating Segments | International
Segment Reporting Information [Line Items]
Net sales	204,760	224,836	475,093	490,300
Operating profit	25,010	41,101	67,760	96,150
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Unallocated corporate expense	161,518	186,630	334,419	363,704
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated mark-to-market losses (gains) on commodity derivatives	53,371	(6,780)	(164,644)	3,464
Restructuring and related cost	$ 39,000	$ 1,517	$ 55,666	$ 3,866