ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Gains on insurance recoveries	$ 8.0	$ 0.0	$ 11.0
Loss on sale of land	1.7
Gain on disposition of former manufacturing facility		3.3
Short-term investments	0.0	0.0
Asset retirement obligation non-current portion	49.6	43.8
Asset retirement obligation revision of estimate	10.9	4.5
Goodwill impairment charge	0.0	0.0	0.0
Finite-lived intangible asset impairment charge	$ 0.0	$ 0.0	$ 0.0
Average remaining life expectancy of the inactive participants in the defined benefit pension plan (in years)	18 years	19 years

Average remaining life expectancy of inactive participants in defined benefit pension plan.

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- Definition

The gain recorded in other operating income due to insurance recoveries for property damage and business interruption.

+ References

No definition available.

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- Definition

Gain on Sale of Former Manufacturing Facility during 2017.

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Amount of increase (decrease) in the asset retirement obligation from changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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- Definition

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current.

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