OTHER CURRENT AND NON-CURRENT ASSETS - Components of Other Current and Non-Current Assets - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Asbestos-related assets	$ 85.9	$ 67.2
Advance payments and other prepaid expenses	36.7	45.4
Current contract assets, net	18.9	18.0
Prepaid income taxes	16.4	20.6
Other	2.0	2.2
Other current assets	159.9	153.4
Other employee benefit-related assets	134.6	133.6
Operating lease right-of-use assets	84.6	91.7
Capitalized software costs	26.4	30.1
Environmental-related assets	20.4	22.2
Equity method investments	10.3	9.8
Other	25.8	29.1
Other non-current assets	$ 302.1	$ 316.5