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Supplemental Financial Statement Information (Tables)

12 Months Ended

Dec. 31, 2020

Additional Financial Information Disclosure [Abstract]

Schedule of cash and cash equivalents

Cash and cash equivalents at December 31, 2020 and 2019 were as follows:

(In millions)						2020						2019
Cash						$	158.2					$	190.8
Other short-term investments						487.7						300.0
Total cash and cash equivalents						$	645.9					$	490.8

Schedule of other non-operating income (expense)

Other income (expense) for the years ended December 31, 2020, 2019, and 2018 was as follows:

(in millions)						2020						2019						2018
Rent, royalty income and other income						$	0.9					$	2.9					$	3.1
Gains from disposal of property, plant and equipment, net						2.9						90.7						1.3
Net equity loss on joint ventures (See Note 9)						(7.0)						(10.7)						(1.0)
Loss on sales of businesses, net (See Note 8)						—						(1.9)						—
Gain on joint venture deconsolidation (See Note 9)						—						—						15.9
Joint venture restructuring and impairment charges (See Note 9)						(2.4)						(11.4)						—
Adjustment to indemnification for conditional ARO costs (See Note 10)						4.3						—						—
Other						0.1						0.1						1.2
Total other income (expense), net						$	(1.2)					$	69.7					$	20.5

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