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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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Amount expected to be recognized in earnings for the specified restructuring cost.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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RESTRUCTURING ACTIVITIES - Asset Optimization and Corporate Restructuring (Details) - Asset Optimization and Corporate Restructuring Plan $ in Millions	3 Months Ended		6 Months Ended		22 Months Ended
	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges	$ 4.1	$ 5.8	$ 6.5	$ 12.9	$ 80.5
Activities
Reserve balance at December 31, 2024			4.7
Restructuring charges			6.5
Payments			(7.4)
Asset write-offs			(2.0)
Reserve balance at June 30, 2025	1.8		1.8		1.8
Severance and Related Benefit Costs
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges	0.6	0.2	1.0	0.7	17.2
Activities
Reserve balance at December 31, 2024			4.7
Restructuring charges			1.0
Payments			(3.9)
Reserve balance at June 30, 2025	1.8		1.8		1.8
Asset Related Charges (Credits)
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges	3.5	2.6	5.5	5.5	54.1
Restructuring costs expected to incur	1.1		1.1		1.1
Activities
Restructuring charges			5.5
Payments			(3.5)
Asset write-offs			(2.0)
Accelerated depreciation charges of plant, property and equipment associated with the exit
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges					32.5
Decommissioning and other charges
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges					21.6
Contract terminations
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges		3.0		6.7	9.2
Demolition cost
RESTRUCTURING ACTIVITIES
Restructuring costs expected to incur	1.1		1.1		$ 1.1
Corporate
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges		0.1	(0.1)	1.3
Engineered Materials
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges		0.3	0.1	1.4
Polymer Solutions
RESTRUCTURING ACTIVITIES
Net pre-tax restructuring charges	$ 4.1	$ 5.4	$ 6.5	$ 10.2