STOCKHOLDERS' EQUITY - Schedule of Changes in the Balance of AOCL, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 6,683	$ 6,650	$ 6,333	$ 6,835
Other comprehensive income (loss) before reclassifications			142	(32)
Amounts reclassified from AOCL
Total reclassified from AOCL			153	66
Other comprehensive income, net of tax	166	42	295	34
Ending Balance	5,334	6,175	5,334	6,175
AOCL
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(8,323)	(8,811)	(8,452)	(8,803)
Amounts reclassified from AOCL
Other comprehensive income, net of tax	166	42	295	34
Ending Balance	(8,157)	(8,769)	(8,157)	(8,769)
Postretirement Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(8,288)	(8,704)
Other comprehensive income (loss) before reclassifications			0	0
Amounts reclassified from AOCL
Total reclassified from AOCL			128	38
Other comprehensive income, net of tax			128	38
Ending Balance	(8,160)	(8,666)	(8,160)	(8,666)
Total reclassified from AOCL	64	19
Amortization of net actuarial losses
Amounts reclassified from AOCL
Total reclassified from AOCL			110	94
Total reclassified from AOCL	55	47
Amortization of net prior service credits
Amounts reclassified from AOCL
Total reclassified from AOCL			18	(56)
Total reclassified from AOCL	9	(28)
Other, net
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(164)	(99)
Other comprehensive income (loss) before reclassifications			142	(32)
Amounts reclassified from AOCL
Total reclassified from AOCL			25	28
Other comprehensive income, net of tax			167	(4)
Ending Balance	$ 3	$ (103)	3	(103)
Other
Amounts reclassified from AOCL
Total reclassified from AOCL			$ 25	$ 28