OTHER CURRENT AND NON-CURRENT ASSETS - Components of Other Current and Non-Current Assets - USD ($) $ in Millions	Jul. 03, 2021	Dec. 31, 2020
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Asbestos-related assets (see Note 19)	$ 0.0	$ 91.0
Advance payments and other prepaid expenses	43.3	39.6
Current contract assets, net	14.4	19.1
Prepaid income taxes	23.3	29.0
Other	7.8	10.8
Other current assets	88.8	189.5
Other employee benefit-related assets	116.5	113.9
Operating lease right-of-use assets	80.0	87.3
Capitalized software costs	20.4	23.9
Environmental-related assets	8.1	10.6
Equity method investments	12.4	11.7
Other	25.6	24.6
Other non-current assets	$ 263.0	$ 272.0