COMMITMENTS AND CONTINGENCIES Roll Forward of Asbestos Liability and Related Assets (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018		Sep. 30, 2019		Sep. 30, 2018		Dec. 31, 2018
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning					$ (472.6)		$ (508.5)
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period		$ 11.9	$ 13.4		36.3	[1]	39.3	[1]
Asbestos Related Costs (Benefit), Annual Remeasurement		(68.1)	7.2		(68.1)		7.2
Gain From Asbestos Insurance Settlement Agreement		0.0	(24.9)	[2]	0.0		(57.0)	[2]
Cash Payments	[1]				(20.1)		(42.3)
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		(420.7)	(455.7)		(420.7)		(455.7)
Asbestos-related liabilities Current		86.2	73.3		86.2		73.3		$ 74.2
Asbestos-related liabilities Non-Current		741.6	771.8		741.6		771.8		775.1
Asbestos-related assets Current		77.1	67.1		77.1		67.1		67.1
Asbestos-related assets Non-Current		330.0	322.3		330.0		322.3		$ 309.6
Liability [Member]
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning					(849.3)		(877.2)
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period	[1]				45.1		48.5
Asbestos Related Costs (Benefit), Annual Remeasurement					(4.5)		(8.6)
Gain From Asbestos Insurance Settlement Agreement					0.0		0.0
Cash Payments	[1]				(62.1)		(72.0)
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		(827.8)	(845.1)		(827.8)		(845.1)
Assets [Member]
Net Asbestos Liability Rollforward [Line Items]
Asbestos Liability And Related Assets Net Current And Noncurrent - Beginning					376.7		368.7
Asbestos Related Costs, Provision to Maintain 10-Year Forecast Period					(8.8)		(9.2)
Asbestos Related Costs (Benefit), Annual Remeasurement					(63.6)		15.8
Gain From Asbestos Insurance Settlement Agreement					0.0		(57.0)
Cash Payments					42.0		29.7
Asbestos Liability And Related Assets Net Current And Noncurrent - Ending		$ 407.1	$ 389.4		$ 407.1		$ 389.4

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

[2] During 2018, we entered into a settlement agreement and a settlement-in-principle with insurers to settle responsibility for multiple insurance claims. Under the terms of the agreements, the insurers agreed to upfront payments to a Qualified Settlement Fund for past costs in addition to providing coverage for certain future asbestos claims on specified terms and conditions.