STOCKHOLDERS' EQUITY - Schedule of Changes in the Balance of AOCL, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 28, 2025	Sep. 29, 2024	Sep. 28, 2025	Sep. 29, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 5,334	$ 6,175	$ 6,333	$ 6,835
Other comprehensive income before reclassifications			116	23
Amounts reclassified from AOCL
Total reclassified from AOCL			234	87
Other comprehensive income, net of tax	55	76	350	110
Ending Balance	6,181	7,200	6,181	7,200
AOCL
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(8,157)	(8,769)	(8,452)	(8,803)
Amounts reclassified from AOCL
Other comprehensive income, net of tax	55	76	350	110
Ending Balance	(8,102)	(8,693)	(8,102)	(8,693)
Postretirement Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(8,288)	(8,704)
Other comprehensive income before reclassifications			0	0
Amounts reclassified from AOCL
Total reclassified from AOCL			193	57
Other comprehensive income, net of tax			193	57
Ending Balance	(8,095)	(8,647)	(8,095)	(8,647)
Total reclassified from AOCL	65	19
Amortization of net actuarial losses
Amounts reclassified from AOCL
Total reclassified from AOCL			165	141
Total reclassified from AOCL	55	47
Amortization of net prior service credits
Amounts reclassified from AOCL
Total reclassified from AOCL			28	(84)
Total reclassified from AOCL	10	(28)
Other, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(164)	(99)
Other comprehensive income before reclassifications			116	23
Amounts reclassified from AOCL
Total reclassified from AOCL			41	30
Other comprehensive income, net of tax			157	53
Ending Balance	$ (7)	$ (46)	(7)	(46)
Other
Amounts reclassified from AOCL
Total reclassified from AOCL			$ 41	$ 30