BASIS OF PRESENTATION - Other Income (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Other Income:
Foreign currency transaction (gains) losses	$ (23.9)	$ (0.6)	$ (36.9)	$ 2.6
Governmental assistance - International markets	$ (10.3)		$ (10.5)
Government Assistance, Nonoperating Income, Increase (Decrease), Statement of Income or Comprehensive Income [Extensible Enumeration]	Total other income		Total other income
Non-operating components of net periodic benefit cost	$ 0.3	0.4	$ 0.6	1.1
Gain on extinguishment of debt				(91.1)
Derivative liability fair value increase (decrease) for embedded conversion feature in the Exchangeable Notes due 2030	3.9		(41.2)
Equity in earnings of non-consolidated entities	(2.1)	(1.0)	(2.9)	(4.7)
Shareholder litigation recoveries		(19.1)		(19.1)
Vendor dispute settlement				(36.2)
Other settlement proceeds		(2.6)		(3.6)
Total other income	$ (32.1)	(108.2)	$ (90.9)	(151.0)
Second Lien Notes due 2026
Other Income:
Gain on extinguishment of debt		$ (85.3)		$ (91.1)

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