Consolidated Statements of Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2024	Mar. 30, 2023
Income Statement [Abstract]
Revenues	$ 1,702.8	$ 1,431.4
Operating costs and expenses
Cost of sales	2,138.3	1,432.2
Selling, general and administrative	81.5	77.4
Restructuring Charges	0.0	6.3
Research and development	10.6	10.6
Total operating costs and expenses	2,230.4	1,526.5
Operating loss	(527.6)	(95.1)
Interest expense and financing fee amortization	(80.2)	(72.4)
Other income (expense), net	(2.3)	117.4
Loss before income taxes and equity in net loss of affiliates	(605.5)	(284.9)
Income tax (provision) benefit	(11.0)	4.3
Loss before equity in net loss of affiliates	(616.5)	(280.6)
Equity in net loss of affiliates	(0.1)	(0.7)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	(616.6)	(281.3)
Net loss	(616.7)	(281.2)
Net Income (Loss) Attributable to Noncontrolling Interest	$ (0.1)	$ 0.1
Loss per share
Earnings Per Share, Basic	$ (5.31)	$ (2.68)
Diluted (in dollars per share)	$ (5.31)	$ (2.68)