Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Net revenues	$ 6,316.6	$ 6,047.9	$ 5,029.6
Operating costs and expenses
Cost of Goods and Services Sold	7,689.0	5,841.7	4,981.0
Selling, general and administrative	365.5	281.9	279.2
Restructuring Charges	0.7	7.2	0.2
Research and development	47.5	45.4	50.4
Total operating costs and expenses	8,102.7	6,182.1	5,310.8
Operating loss	(1,786.1)	(134.2)	(281.2)
Interest expense and financing fee amortization	(353.5)	(318.7)	(244.1)
Other expense, net	2.0	140.4	14.1
Loss before income taxes and equity in net income (loss) of affiliates	(2,141.6)	(593.3)	(539.4)
Income tax benefit (provision)	2.4	(22.5)	(5.2)
Loss before income taxes and equity in net income (loss) of affiliates	(2,139.2)	(615.8)	(544.6)
Equity in net income (loss) of affiliates	0.2	(0.3)	(1.6)
Net loss	$ (2,139.8)	$ (616.2)	$ (545.7)
Loss per share
Basic (in dollars per share)	$ (18.32)	$ (5.78)	$ (5.21)
Earnings Per Share, Diluted	(18.32)	(5.78)	(5.21)
Common Stock, Dividends, Per Share, Declared	$ 0.00	$ 0.00	$ 0.03
Net Income (Loss) Attributable to Noncontrolling Interest	$ (0.8)	$ (0.1)	$ 0.5
Net income	(2,139.8)	(616.2)	(545.7)
Income (Loss) from Equity Method Investments	0.2	(0.3)	(1.6)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(2,139.0)	(616.1)	(546.2)
Other Expenses	0.0	5.9	0.0
Interest and Debt Expense	353.5	318.7	244.1
Other Nonoperating Income (Expense)	$ (2.0)	$ (140.4)	$ (14.1)