Commitments and contingencies (Tables)

3 Months Ended

Mar. 31, 2024

Commitments and contingencies

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 three months of 2024.

	Amount
	(In millions)
Balance at the beginning of the period	$	96.9
Additions charged to expense, net		.2
Payments, net		(.7)
Balance at the end of the period	$	96.4
Amounts recognized in the Condensed Consolidated Balance Sheet   at the end of the period:
Current liabilities	$	3.3
Noncurrent liabilities		93.1
Total	$	96.4