Other noncurrent liabilities (Tables)

12 Months Ended

Dec. 31, 2023

Other noncurrent liabilities

Components of Other noncurrent liabilities

	December 31,
	2022		2023
	(In millions)
Accrued postretirement benefits	$	5.9	$	6.4
Employee benefits		4.8		4.9
Other		9.8		10.5
Total	$	20.5	$	21.8