SEGMENT INFORMATION - SCHEDULE OF NET SALES AND EARNINGS BY SEGMENT (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
Segment Reporting Information [Line Items]
Net sales	$ 3,181,418	$ 2,987,494	$ 8,601,555	$ 8,314,723
Cost of sales	2,144,084	1,754,775	5,823,681	4,572,178
Selling, marketing and administrative expense	600,540	591,920	1,762,419	1,750,888
Operating profit	$ 434,583	$ 613,164	$ 996,615	$ 1,959,085
Unallocated mark-to-market losses on commodity derivatives, extensible enumeration, not disclosed	Unallocated mark-to-market gains on commodity derivatives	Unallocated mark-to-market gains on commodity derivatives	Unallocated mark-to-market losses on commodity derivatives	Unallocated mark-to-market gains on commodity derivatives
Restructuring and related cost	$ 10,577	$ 49,129	$ 51,569	$ 104,795
Interest expense, net	51,474	44,316	142,131	125,511
Other (income) expense, net	11,199	50,101	9,808	82,695
Income before income taxes	371,910	518,747	844,676	1,750,879
Operating Segments
Segment Reporting Information [Line Items]
Operating profit	615,615	793,006	1,972,774	2,364,368
Operating Segments | North America Confectionery
Segment Reporting Information [Line Items]
Net sales	2,615,600	2,477,303	7,001,208	6,764,439
Cost of sales	1,752,225	1,446,950	4,342,071	3,738,180
Selling, marketing and administrative expense	291,900	305,531	887,357	888,745
Operating profit	571,475	724,822	1,771,780	2,137,514
Operating Segments | North America Salty Snacks
Segment Reporting Information [Line Items]
Net sales	321,020	291,835	914,337	856,835
Cost of sales	206,267	181,729	581,440	545,758
Selling, marketing and administrative expense	57,006	56,129	166,817	166,190
Operating profit	57,747	53,977	166,080	144,887
Operating Segments | International
Segment Reporting Information [Line Items]
Net sales	244,798	218,356	686,010	693,449
Cost of sales	209,843	154,012	512,239	470,079
Selling, marketing and administrative expense	48,562	50,137	138,857	141,403
Operating profit	(13,607)	14,207	34,914	81,967
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Unallocated corporate expense	194,705	161,796	536,659	496,215
Segment Reconciling Items
Segment Reporting Information [Line Items]
Unallocated mark-to-market (gains) losses on commodity derivatives	(24,250)	(31,083)	387,932	(195,727)
Restructuring and related cost	$ 10,577	$ 49,129	$ 51,568	$ 104,795