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Restructuring and Business Optimization Expenses and Asset Impairment Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Jun. 24, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring reserve, current		$ 125.2	$ 6.4
Restructuring reserve, noncurrent		11.0	1.4
Provision, net of reversals		157.8	11.9	$ 6.1
Net income (loss)		60.8	0.1	14.9
Write-down of investment		(46.4)	$ (68.2)	(64.1)
Russian Finance Joint Venture
Restructuring Cost and Reserve [Line Items]
Write-down of investment	$ 4.8			$ 4.8
Entity Under Time-Limited General License \| Russian Finance Joint Venture
Restructuring Cost and Reserve [Line Items]
Asset impairment charges	36.0
Net income (loss)	$ 12.2
One-time Termination Benefits \| Minimum \| 2024 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Expected charges to be incurred					$ 150.0
One-time Termination Benefits \| Maximum \| 2024 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Expected charges to be incurred					$ 200.0
Business Optimization
Restructuring Cost and Reserve [Line Items]
Provision, net of reversals		$ 14.9