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COMMITMENTS AND CONTINGENCIES Rollforward of Environmental Liability and Related Assets (Detail) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Loss Contingency Accrual [Roll Forward] |  |
Environmental liability - beginning balance | $ 58.3 | $ 61.9
Payments | (2.0) | (1.6)
Foreign currency | (0.1) | (0.2)
Environmental liability - ending balance | 56.1 | 58.5
Continuing Operations [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Changes In Pre-Existing Environmental Accruals | (0.1) | 0.0
Discontinued Operations [Member] |  |
Loss Contingency Accrual [Roll Forward] |  |
Changes In Pre-Existing Environmental Accruals | $ 0.0 | $ (1.6)

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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 + Details
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