RETIREMENT BENEFITS (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 27, 2024	Sep. 29, 2023
Pension
Operating
Service cost	$ 8	$ 10	$ 25	$ 22
Non-operating
Interest cost	99	100	296	283
Expected return on plan assets	(165)	(162)	(495)	(467)
Amortization of net actuarial gain	(1)	(2)	(3)	(7)
Amortization of prior service (credit) cost	(7)	(7)	(20)	(20)
Non-service cost periodic benefit income	(74)	(71)	(222)	(211)
Net periodic benefit income	(66)	(61)	(197)	(189)
Other Benefits
Operating
Service cost	0	0	1	1
Non-operating
Interest cost	3	3	8	8
Expected return on plan assets	(5)	(5)	(15)	(15)
Amortization of net actuarial gain	(4)	(5)	(13)	(15)
Amortization of prior service (credit) cost	0	0	1	1
Non-service cost periodic benefit income	(6)	(7)	(19)	(21)
Net periodic benefit income	$ (6)	$ (7)	$ (18)	$ (20)