BUSINESS SEGMENT INFORMATION - Revenues and Income From Continuing Operations by Segment (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 03, 2026	Mar. 28, 2025
Segment Reporting Information [Line Items]
Revenue	$ 5,744	$ 5,132
Cost of revenue	(4,342)	(3,782)
Segment operating income	652	525
Non-service FAS pension income and other, net	75	90
Interest expense, net	(136)	(150)
Income before income taxes	589	459
Operating segments
Segment Reporting Information [Line Items]
Revenue	5,744	4,986
Cost of revenue	(4,318)	(3,687)
Segment operating income	902	777
Operating segments \| SMS
Segment Reporting Information [Line Items]
Revenue	2,990	2,411
Cost of revenue	(2,439)	(1,948)
Segment operating income	313	238
Operating segments \| CSD
Segment Reporting Information [Line Items]
Revenue	1,855	1,809
Cost of revenue	(1,163)	(1,157)
Segment operating income	465	443
Operating segments \| MSL
Segment Reporting Information [Line Items]
Revenue	990	840
Cost of revenue	(807)	(656)
Segment operating income	124	96
Intersegment
Segment Reporting Information [Line Items]
Revenue	(91)	(74)
Cost of revenue	91	74
Intersegment \| SMS
Segment Reporting Information [Line Items]
Revenue	(23)	(26)
Intersegment \| CSD
Segment Reporting Information [Line Items]
Revenue	(57)	(29)
Intersegment \| MSL
Segment Reporting Information [Line Items]
Revenue	(11)	(18)
Other
Segment Reporting Information [Line Items]
Revenue	0	146
Cost of revenue	(24)	(95)
Corporate
Segment Reporting Information [Line Items]
Segment operating income	$ (250)	$ (252)

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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