OTHER CURRENT AND NON-CURRENT ASSETS - Components of Other Current and Non-Current Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Asbestos-related assets	$ 64.7		$ 64.7	$ 66.0
Advance payments and other prepaid expenses	48.1		50.9
Short-term contract asset (see Note 2)	24.8	$ 43.2	0.0
Prepaid income taxes	35.9		30.3
Other	1.6		1.5
Other current assets	175.1		147.4
Other employee benefit-related assets	114.7		111.3
Capitalized software costs	37.2		41.9
Environmental-related assets	23.3		24.5
Equity method investments	7.8		6.7
Other	20.2		18.5
Other non-current assets	$ 203.2		$ 202.9