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Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
Restructuring - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 8.9	$ 6.0	$ 15.6	$ 21.0
Goodwill and other asset impairments	(2.7)	$ 398.6	(2.7)	443.1
Accounts Receivable, Allowance for Credit Loss, Writeoff			2.0	$ 4.8
Restructuring, 2025 Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			9.5		$ 45.2
Restructuring and Related Cost, Expected Cost	$ 4.4		4.4
Restructuring, 2025 Initiative [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs					32.7
Restructuring, 2025 Initiative [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring costs					12.6
Exit Activities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			6.1		57.8
Accounts Receivable, Allowance for Credit Loss, Writeoff			3.0
Exit Activities [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs			4.1		26.2
Exit Activities [Member] \| Contract Termination
Restructuring Cost and Reserve [Line Items]
Restructuring costs			10.2		21.7
Exit Activities [Member] \| Writeoff of Receivables and Other Assets
Restructuring Cost and Reserve [Line Items]
Restructuring Costs					5.1
Exit Activities [Member] \| Other Restructuring
Restructuring Cost and Reserve [Line Items]
Goodwill and other asset impairments					5.8
Exit Activities [Member] \| Loss on Sale of Assets
Restructuring Cost and Reserve [Line Items]
Restructuring Costs			$ (8.2)		$ 4.7