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Supplemental Financial Statement Information - Other Non-operating Income (Expense) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disaggregation of Revenue [Line Items] |  |  |
Rent, royalty income and other income | $ 1.1 | $ 0.9 | $ 2.9
Gains from disposal of property, plant and equipment, net | 2.9 | 2.9 | 90.7
Income (loss) from equity method investments | 0.1 | (7.0) | (10.7)
Gain (loss) on sale of businesses, net | 13.8 | 0.0 | (7.1)
Joint venture restructuring and impairment charges | 0.0 | (2.4) | (11.4)
Other | 0.3 | 0.1 | 0.0
Other income (loss), net | 18.2 | (1.2) | 64.4
Gain from sale of certain oil and gas rights |  |  | 91.7
Gain on asset sales and sale of business, net | 13.8 | 2.5 | 84.6
Buyer of Formerly-Owned Business |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Revisions of estimates | $ 0.0 | $ 4.3 | $ 0.0

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