RETIREMENT BENEFITS - Statement of Operations Information (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2026	Jan. 03, 2025	Dec. 29, 2023
Operating
Service cost	$ 26	$ 36
Non-operating
Interest cost	328	404
Pension
Operating
Service cost	25	34	$ 33
Non-operating
Interest cost	317	394	386
Expected return on plan assets	(557)	(660)	(633)
Amortization of net actuarial gains	(5)	(4)	(9)
Amortization of prior service (credits) costs	(27)	(26)	(26)
Effect of settlements	(62)	0	0
Non-service cost net periodic benefit income	(334)	(296)	(282)
Net periodic benefit income	(309)	(262)	(249)
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Net actuarial gain	(104)	(414)	(90)
Prior service cost (credit)	5	(14)	0
Amortization of net actuarial gain	6	4	9
Amortization of prior service credit (cost)	27	26	26
Effect of settlements	62	0	0
Effect of divestiture	11	0	0
Currency translation adjustment	(1)	4	0
Total change recognized in other comprehensive income	6	(394)	(55)
Total impact from net periodic benefit income and changes in other comprehensive income	(303)	(656)	(304)
Other Benefits
Operating
Service cost	1	2	2
Non-operating
Interest cost	11	10	11
Expected return on plan assets	(21)	(20)	(20)
Amortization of net actuarial gains	(13)	(17)	(20)
Amortization of prior service (credits) costs	1	1	1
Effect of settlements	0	0	0
Non-service cost net periodic benefit income	(22)	(26)	(28)
Net periodic benefit income	(21)	(24)	(26)
Other changes in plan assets and benefit obligations recognized in other comprehensive income
Net actuarial gain	(16)	(7)	(18)
Prior service cost (credit)	0	0	0
Amortization of net actuarial gain	13	17	20
Amortization of prior service credit (cost)	(1)	(1)	(1)
Effect of settlements	0	0	0
Effect of divestiture	0	0	0
Currency translation adjustment	0	0	0
Total change recognized in other comprehensive income	(4)	9	1
Total impact from net periodic benefit income and changes in other comprehensive income	$ (25)	$ (15)	$ (25)