Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2023

Commitments And Contingencies Disclosure [Abstract]

Change in Accrued Environmental Remediation and Related Costs

The table below presents a summary of the activity in our accrued environmental costs during the first six months of 2023.

	Amount
	(In millions)
Balance at the beginning of the period	$	97.3
Additions charged to expense, net		.5
Payments, net		(1.5)
Balance at the end of the period	$	96.3
Amounts recognized in the Condensed Consolidated Balance Sheet   at the end of the period:
Current liabilities	$	2.9
Noncurrent liabilities		93.4
Total	$	96.3