Restructuring Expenses and Impairment Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Impairment charges				$ 0.0	$ 36.0
Benefit recorded in Net loss (income) attributable to noncontrolling interests	$ 0.1	$ 0.0		0.1	14.9
Investment write-down included in Equity in net earnings of affiliates	$ (21.9)	$ (15.4)		$ (55.9)	$ (39.7)
Russian Finance Joint Venture
Restructuring Cost and Reserve [Line Items]
Investment write-down included in Equity in net earnings of affiliates			$ 4.8
Russian Finance Joint Venture | Entity under Time-Limited General License
Restructuring Cost and Reserve [Line Items]
Impairment charges			36.0
Benefit recorded in Net loss (income) attributable to noncontrolling interests			$ 12.2