PENSION AND OTHER POSTRETIREMENT BENEFITS - Income Statement Information (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jan. 03, 2020	Dec. 31, 2021	Jan. 01, 2021	Jun. 28, 2019
Net periodic benefit income
Service cost		$ 68	$ 67
Interest cost		193	283
Pension
Net periodic benefit income
Service cost	$ 42	66	65	$ 36
Interest cost	149	188	273	209
Expected return on plan assets	(314)	(621)	(630)	(382)
Amortization of net actuarial loss	1	30	10	0
Amortization of prior service credit	(5)	(28)	(28)	0
Cost for special termination benefits	0	0	1	0
Effect of curtailments or settlements	(18)	1	0	1
Net periodic benefit income	(145)	(364)	(309)	(136)
Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net actuarial loss (gain)	55	(972)	403	625
Prior service cost (credit)	(292)	2	1	3
Amortization of net actuarial loss	(5)	(30)	(10)	0
Amortization of prior service credit (cost)	5	28	28	(1)
Currency translation adjustment	0	1	2	0
Recognized prior service credit	0	4	0	0
Recognized net actuarial loss	0	(4)	0	0
Recognized net loss due to divestiture	(13)	0	0	0
Total change recognized in other comprehensive loss	(250)	(971)	424	627
Total impact from net periodic benefit cost and changes in other comprehensive loss	(395)	(1,335)	115	491
Other Benefits
Net periodic benefit income
Service cost	1	2	2	0
Interest cost	5	5	10	8
Expected return on plan assets	(10)	(20)	(21)	(16)
Amortization of net actuarial loss	(3)	0	(3)	(6)
Amortization of prior service credit	0	1	0	0
Net periodic benefit income	(7)	(12)	(12)	(14)
Other changes in plan assets and benefit obligations recognized in other comprehensive loss
Net actuarial loss (gain)	(1)	(46)	4	4
Prior service cost (credit)	0	0	8	0
Amortization of net actuarial loss	3	0	3	6
Amortization of prior service credit (cost)	0	(1)	0	0
Total change recognized in other comprehensive loss	2	(47)	15	10
Total impact from net periodic benefit cost and changes in other comprehensive loss	$ (5)	$ (59)	$ 3	$ (4)