Amount of expense (reversal of expense) which increases (decreases) the accrual for environmental loss contingencies from revisions in estimates to existing obligations. Excludes changes related to business acquisitions, divestitures, or currency movement.

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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The increase (decrease) during the reporting period in other expenses incurred but not yet paid.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate amount of asset impairment charges, (gains) and losses related to the divestiture of businesses and unusual items incurred during an accounting period.

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Asset Impairments and Unusual Items (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2022	Mar. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Asset Impairments and Unusual Items
(Gain) loss from divestitures, asset impairments and unusual items, net			$ 62.0	$ (16.0)	$ 35.0
Asset impairments			50.0	8.0	68.0
Gain (loss) on sale of assets			5.0	44.0	33.0
Increase in legal accruals				20.0
Other ancillary operations [Member]
Asset Impairments and Unusual Items
Asset impairments					7.0
Disposed of by Sale, Not Discontinued Operations [Member]
Asset Impairments and Unusual Items
Gain (loss) on sale of assets			5.0	44.0	33.0
Disposed of by Sale, Not Discontinued Operations [Member] \| Canadian operations [Member]
Asset Impairments and Unusual Items
Gain (loss) on sale of assets				35.0
Disposed of by Sale, Not Discontinued Operations [Member] \| Other ancillary operations [Member]
Asset Impairments and Unusual Items
Gain (loss) on sale of assets				$ 8.0
Refined Coal Facility [Member]
Asset Impairments and Unusual Items
Equity method investments impairment charges		$ 7.0			7.0
Landfills and Oil Field Waste Injection Facility [Member]
Asset Impairments and Unusual Items
Asset impairments					41.0
Landfill [Member]
Asset Impairments and Unusual Items
Asset impairments					$ 20.0
San Jacinto Waste Pits [Member]
Asset Impairments and Unusual Items
Revisions in estimates and interest rate assumptions	$ 17.0		$ 17.0