INFORMATION ON BUSINESS SEGMENTS - FAS/CAS Pension Adjustment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2022	Jun. 27, 2021	Jun. 26, 2022	Jun. 27, 2021
Segment Reporting Information [Line Items]
Non-service FAS pension (expense) income	$ (1,331)	$ 94	$ (1,191)	$ 187
Total FAS/CAS pension adjustment	(906)	583	(340)	1,165
Unallocated items
Segment Reporting Information [Line Items]
Less: CAS pension cost	449	516	899	1,032
FAS pension service cost	(24)	(27)	(48)	(54)
FAS/CAS pension operating adjustment	425	489	851	978
Qualified defined benefit pension plans
Segment Reporting Information [Line Items]
Total FAS pension (expense) income	(1,355)	67	(1,239)	133
FAS pension service cost	(24)	(27)	(48)	(54)
Qualified defined benefit pension plans | Qualified Plan
Segment Reporting Information [Line Items]
Total FAS pension (expense) income	$ (1,355)	$ 67	$ (1,239)	$ 133