CHANGES IN ESTIMATES (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2022	Jul. 02, 2021	Jul. 01, 2022	Jul. 02, 2021
Change in Accounting Estimate [Line Items]
Revenue recognized from performance obligations satisfied in previous periods	$ 32	$ 107	$ 90	$ 215
Contracts Accounted for under Percentage of Completion
Change in Accounting Estimate [Line Items]
Net EAC adjustments, before income taxes	12	80	58	162
Net EAC adjustments, net of income taxes	$ 9	$ 60	$ 44	$ 122
Net EAC adjustments, net of income taxes, per diluted share (in dollars per share)	$ 0.05	$ 0.29	$ 0.23	$ 0.59