POSTRETIREMENT BENEFIT PLANS - Schedule of Pretax Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2022	Jun. 27, 2021	Jun. 26, 2022	Jun. 24, 2022	Jun. 27, 2021
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension settlement charge			$ (1,470)		$ 0
Qualified defined benefit pension plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ (24)	$ (27)	(48)		(54)
Interest cost	(303)	(310)	(605)		(621)
Expected return on plan assets	503	569	1,005	$ 1,000	1,138
Recognized net actuarial losses	(151)	(252)	(301)		(504)
Amortization of prior service credits	90	87	180		174
Pension settlement charge	(1,470)	0	(1,470)		0
Non-service FAS pension (expense) income	(1,331)	94	(1,191)		187
Total FAS pension (expense) income	(1,355)	67	(1,239)		133
Retiree medical and life insurance plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	(2)	(4)	(4)		(7)
Interest cost	(12)	(13)	(24)		(26)
Expected return on plan assets	34	35	68		70
Recognized net actuarial losses	12	0	23		0
Amortization of prior service credits	(7)	(9)	(14)		(18)
Non-service FAS pension (expense) income	27	13	53		26
Total FAS pension (expense) income	$ 25	$ 9	$ 49		$ 19