COMMITMENTS AND CONTINGENCIES Roll Forward of Asbestos Liability and Related Assets (Detail) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning		$ (430.8)	$ (472.6)
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period	[1]	11.8	12.6
Gain From Asbestos Insurance Settlement Agreement		(52.5)	0.0
Cash Payments	[1]	(6.1)	(9.9)
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		(384.0)	(475.3)
Asbestos-related liabilities Current		86.3	73.5	$ 86.0
Asbestos-related liabilities Non-Current		718.5	771.4	731.6
Asbestos-related assets Current		67.2	67.1	67.2
Asbestos-related assets Non-Current		353.6	302.5	$ 319.6
Liability [Member]
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning		(817.6)	(849.3)
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period	[1]	14.5	15.7
Gain From Asbestos Insurance Settlement Agreement		0.0	0.0
Cash Payments	[1]	(27.3)	(20.1)
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		(804.8)	(844.9)
Assets [Member]
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning		386.8	376.7
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period		(2.7)	(3.1)
Gain From Asbestos Insurance Settlement Agreement		(52.5)	0.0
Cash Payments		21.2	10.2
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		$ 420.8	$ 369.6

[1] (a) Includes certain administrative costs such as legal-related costs for insurance asset recoveries.