Supplemental Financial Statement Information (Tables)

12 Months Ended

Dec. 31, 2022

Additional Financial Information Disclosure [Abstract]

Schedule of cash and cash equivalents

Cash and cash equivalents at December 31, 2022 and 2021 were as follows:

(In millions)	2022		2021
Cash	$	164.9	$	222.8
Other short-term investments	419.1		464.9
Total cash and cash equivalents	$	584.0	$	687.7

Schedule of other non-operating income (expense)

Other income (expense) for the years ended December 31, 2022, 2021, and 2020 was as follows:

(in millions)	2022		2021		2020
Rent, royalty income and other income	$	2.3	$	1.1	$	0.9
Gains from disposal of property, plant and equipment, net	0.2		2.9		2.9
Net equity income (loss) on joint ventures (See Note 7)	12.6		0.1		(7.0)
Gain on sales of businesses, net (See Note 6)	—		13.8		—
Joint venture restructuring credit (charge) (See Note 7)	0.9		—		(2.4)
Adjustment to indemnification for conditional ARO costs	—		—		4.3
Litigation settlement (See Note 21)	(28.5)		—		—
Other	—		0.3		0.1
Total other income (expense), net	$	(12.5)	$	18.2	$	(1.2)