OTHER CURRENT AND NON-CURRENT ASSETS - Components of Other Current and Non-Current Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018	Sep. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Asbestos-related assets	$ 77.1	$ 67.1	$ 67.1
Advance payments and other prepaid expenses	34.4	44.5
Current contract assets	33.6	21.8
Prepaid income taxes	15.0	19.6
Other	1.6	10.4
Other current assets	161.7	163.4
Other employee benefit-related assets	119.1	104.7
Operating lease right-of-use assets (see Note 2)	88.9	0.0
Capitalized software costs	31.0	35.3
Environmental-related assets	22.1	23.4	$ 23.3
Equity method investments	9.4	7.7
Other	29.1	25.7
Other non-current assets	$ 299.6	$ 196.8