Discontinued Operations - Components of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)	$ (57.2)	$ (8.3)	$ (21.5)	$ (11.5)	$ (55.0)	$ (16.2)	$ (10.8)	$ (15.2)	$ (98.5)	$ (97.2)	$ (68.2)
Adjustment for workers' compensation, product liability, and other postretirement benefits and other, tax									(0.9)	(2.5)	(10.2)
Provision for environmental liabilities, net of recoveries, tax									18.0	13.8	8.2
Adjustment for workers’ compensation, product liability, and other postretirement benefits and other, net of income tax benefit (expense) of $(0.9) in 2023, $(2.5) in 2022 and $(10.2) in 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)									(3.0)	(3.9)	(8.3)
Provision for environmental liabilities, net of recoveries, net of income tax benefit (expense)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)									(65.6)	(53.8)	(29.7)
Provision for legal reserves and expenses, net of recoveries, net of income tax benefit (expense) of $7.9 in 2023, $10.5 in 2022, and $12.2 in 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)									(29.9)	(39.5)	(45.6)
Discontinued operations, tax									7.9	10.5	12.2
Discontinued Real Estate
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)									0.0	0.0	15.4
Discontinued operations, tax									0.0	$ 0.0	$ (4.1)
Discontinued Foreign Environmental Liabilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and other charges (income)									$ (11.7)