Undiscounted amount of the accrual for environmental loss contingencies.

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- Definition

The charge against earnings in the period for known or estimated future costs arising from requirements to perform environmental remediation activities.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Estimated time frame for resolution of the uncertainty as to the loss for an individual site.

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Environmental (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Environmental (Details) - USD ($) $ in Millions	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Loss Contingencies [Line Items]
Environmental remediation costs	$ 2.2	$ 1.8	$ 4.2	$ 5.5
Accrued environmental liability	115.5		$ 115.5		$ 117.7
Estimated time frame to remediate contigency			30 years
Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Accrued environmental liability	$ 94.1		$ 94.1		$ 95.6