BUSINESS SEGMENT INFORMATION - Revenues and Income From Continuing Operations by Segment (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 28, 2025	Mar. 29, 2024
Segment Reporting Information [Line Items]
Revenue		$ 5,132	$ 5,211
Cost of revenue		(3,782)	(3,863)
Other Segment Costs		(550)	(560)
Segment operating income		525	378
Non-service FAS pension income and other, net	[1]	84	88
Interest expense, net		150	176
Income before income taxes		459	290
Operating segments | CS
Segment Reporting Information [Line Items]
Revenue		1,352	1,294
Cost of revenue		(856)	(837)
Other Segment Costs		(151)	(147)
Segment operating income		345	310
Operating segments | IMS
Segment Reporting Information [Line Items]
Revenue		1,592	1,627
Cost of revenue		(1,204)	(1,248)
Other Segment Costs		(185)	(194)
Segment operating income		203	185
Operating segments | SAS
Segment Reporting Information [Line Items]
Revenue		1,611	1,751
Cost of revenue		(1,281)	(1,366)
Other Segment Costs		(154)	(169)
Segment operating income		176	216
Operating segments | AR
Segment Reporting Information [Line Items]
Revenue		629	584
Cost of revenue		(489)	(443)
Other Segment Costs		(64)	(64)
Segment operating income		76	77
Other
Segment Reporting Information [Line Items]
Revenue		(52)	(45)
Cost of revenue		(48)	31
Other Segment Costs		4	14
Corporate
Segment Reporting Information [Line Items]
Segment operating income		$ (275)	$ (410)

[1] “FAS” is defined as Financial Accounting Standards.