Environmental Obligations (Tables)

12 Months Ended

Dec. 31, 2021

Environmental Remediation Obligations [Abstract]

Schedule of Environmental Reserves

The table below is a roll forward of our total environmental reserves.

(in Millions)	Environmental Reserves Total
Balance December 31, 2020	$	6.7
Change in reserves	(0.3)
Cash payments	(0.3)
Balance December 31, 2021	$	6.1

Schedule of Accrual for Environmental Contingencies

The table below provides detail of current and long-term environmental reserves.

	December 31,
(in Millions)	2021		2020
Environmental reserves, current (1)	$	0.5	$	0.6
Environmental reserves, long-term (2)	5.6		6.1
Total environmental reserves	$	6.1	$	6.7

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1.These amounts are included within “Accrued and other liabilities” on the consolidated balance sheets.

2.These amounts are included in "Environmental liabilities" on the consolidated balance sheets.