OTHER CURRENT AND NON-CURRENT ASSETS - Components of Other Current and Non-Current Assets (Details) - USD ($) $ in Millions	Oct. 03, 2026	Dec. 31, 2025
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Current contract assets	$ 90.0	$ 50.9
Advance payments and other prepaid expenses	79.3	71.5
Prepaid income taxes	63.5	37.8
Other	17.9	23.2
Other current assets	250.7	183.4
Other employee benefit-related assets	148.8	142.3
Operating lease right-of-use assets	124.4	80.4
Deferred income taxes	83.2	82.4
Equity-method and other investments	44.7	41.0
Environmental-related assets	14.8	9.8
Capitalized software costs	10.1	4.6
Other	40.1	24.8
Other non-current assets	$ 466.1	$ 385.3