COMMITMENTS AND CONTINGENCIES Roll Forward of Asbestos Liability and Related Assets (Detail) - USD ($) $ in Millions		3 Months Ended			6 Months Ended
		Jul. 03, 2021		Jun. 27, 2020	Jul. 03, 2021		Jun. 27, 2020		Dec. 31, 2020
Net Asbestos Liability Rollforward [Line Items]
Beginning balance					$ (487.3)		$ (430.8)
Asbestos provision(a)	[1]				14.4		23.6
Insurance settlement agreements(b)		$ 0.0		$ 4.2	0.0		(48.3)	[2]
Net cash activity(a)	[1]				(4.5)		(7.6)
Divestiture of Asbestos-Related Assets and Liabilities, Net					(486.8)
Divestiture of Asbestos-Related Assets					(401.4)
Ending balance		(10.4)		(398.5)	(10.4)		(398.5)
Asbestos-related liabilities Current		10.4	[3],[4]	85.9	10.4	[3],[4]	85.9		$ 91.4
Asbestos-related liabilities Non-Current		0.0		717.9	0.0		717.9		840.6
Asbestos-related assets Current		0.0		85.9	0.0		85.9		91.0
Asbestos-related assets Non-Current		0.0		319.4	0.0		319.4		$ 353.7
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent					(888.2)
Liability [Member]
Net Asbestos Liability Rollforward [Line Items]
Beginning balance					(932.0)		(817.6)
Asbestos provision(a)					13.4		28.9
Insurance settlement agreements(b)					0.0		0.0
Net cash activity(a)					(46.8)		(42.7)
Ending balance		(10.4)		(803.8)	(10.4)		(803.8)
Assets [Member]
Net Asbestos Liability Rollforward [Line Items]
Beginning balance					444.7		386.8
Asbestos provision(a)					1.0		(5.3)
Insurance settlement agreements(b)					0.0		(48.3)
Net cash activity(a)					42.3		35.1
Ending balance		$ 0.0		$ 405.3	$ 0.0		$ 405.3

[1] Includes certain administrative costs such as legal-related costs for insurance asset recoveries and transaction costs related to the divestiture of the entity holding asbestos-related assets and liabilities. The asbestos provision for the three and six months ended June 27, 2020 includes amounts to maintain a rolling 10-year provision prior to the transition to a full horizon estimate.

[2] In March 2020, we finalized a settlement agreement with a group of insurers to settle responsibility for claims under certain insurance policies for a lump sum payment of $66.4, resulting in a benefit of $52.5. During June 2020, we entered into a settlement agreement with an insurer accelerating payments previously included in a buyout agreement, resulting in a loss of $4.2.

[3] As of July 3, 2021, the current liability represents transaction costs related to the divestiture of the entity holding asbestos-related assets and liabilities. See Note 19, Commitments and Contingencies, for further information.

[4] As of July 3, 2021, the current liability represents transaction costs related to the divestiture of the entity holding asbestos-related assets and liabilities.