Other Noncurrent Liabilities (Tables)

3 Months Ended

Mar. 31, 2023

Other Liabilities Disclosure [Abstract]

Other Noncurrent Liabilities

	December 31,		March 31,
	2022		2023
	(In millions)
Accrued development costs	$	48.1	$	45.8
Accrued litigation settlement		27.4		27.6
Deferred income		25.9		22.0
Insurance claims and expenses		18.7		17.2
Operating lease liabilities		17.4		17.2
Other postretirement benefits		7.1		7.0
Employee benefits		4.8		4.9
Reserve for uncertain tax positions		.3		.3
Other		6.7		7.1
Total	$	156.4	$	149.1