Business Combinations, Discontinued Operations, Divestitures and Assets and Liabilities Held for Sale - Summary of Assets and Liabilities Held for Sale (Detail) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Inventories, net	$ 37.2	$ 53.1
Investment land	42.0	32.7
Other assets	0.3	16.4
Total current assets held for sale	79.5	102.2
Property, plant and equipment	127.2	226.0
Intangible assets, excluding goodwill	208.5	264.9
Operating lease right-of-use assets	12.7	18.1
Goodwill	31.8	109.3
Other assets		4.6
Valuation allowance for loss on sale	(5.1)	(6.0)
Total noncurrent assets held for sale	375.1	616.9
Lease obligations	(4.6)	(7.5)
Total current liabilities held for sale	(4.6)	(7.5)
Asset retirement obligations	(17.4)	(31.5)
Lease obligations	(6.4)	(22.0)
Total noncurrent liabilities held for sale	(23.8)	(53.5)
Continuing Operations
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Investment land	42.0	32.7
Total current assets held for sale	42.0	32.7
Discontinued Operations
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Inventories, net	37.2	53.1
Other assets	0.3	16.4
Total current assets held for sale	37.5	69.5
Property, plant and equipment	127.2	226.0
Intangible assets, excluding goodwill	208.5	264.9
Operating lease right-of-use assets	12.7	18.1
Goodwill	31.8	109.3
Other assets		4.6
Valuation allowance for loss on sale	(5.1)	(6.0)
Total noncurrent assets held for sale	375.1	616.9
Lease obligations	(4.6)	(7.5)
Total current liabilities held for sale	(4.6)	(7.5)
Asset retirement obligations	(17.4)	(31.5)
Lease obligations	(6.4)	(22.0)
Total noncurrent liabilities held for sale	$ (23.8)	$ (53.5)