Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 0.3	$ (0.7)
Net loss	(249.3)	(119.6)
Depreciation and amortization	145.1	177.2
Share-based compensation		1.2
Deferred income taxes	(33.4)	(0.9)
Reorganization Items, non-cash	0.0	2.9
Accretion Expense	69.9	0.0
Other Noncash Income (Expense)	(20.0)	(12.3)
Increase (Decrease) in Accounts Receivable	(9.6)	(73.8)
Increase (Decrease) in Inventories	(48.0)	27.0
Accounts payable	(20.4)	0.4
Income taxes	138.9	(7.8)
Increase (Decrease) in Other Operating Assets and Liabilities, Net	31.1	63.3
Net Cash Provided by (Used in) Operating Activities	99.9	49.2
Payments to Acquire Property, Plant, and Equipment	19.3	23.6
Payments for (Proceeds from) Other Investing Activities	(0.3)	(0.2)
Net Cash Provided by (Used in) Investing Activities	(19.0)	(23.4)
Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security	11.0	4.6
Net Cash Provided by (Used in) Financing Activities	(11.0)	(4.6)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	70.2	20.5
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	536.9	1,425.7
Cash and cash equivalents	480.0	1,365.3
Restricted Cash and Investments, Current	21.5	24.0
Restricted Cash and Investments, Noncurrent	35.4	36.4
Cash Flows From Operating Activities:
Net loss	(249.3)	(119.6)
Adjustments to reconcile net cash from operating activities:
Depreciation and amortization	145.1	177.2
Share-based compensation		1.2
Deferred income taxes	(33.4)	(0.9)
Reorganization Items, non-cash	0.0	2.9
Other non-cash items	20.0	12.3
Changes in assets and liabilities:
Accounts receivable, net	9.6	73.8
Inventories	48.0	(27.0)
Accounts payable	(20.4)	0.4
Income taxes	138.9	(7.8)
Other	(31.1)	(63.3)
Net Cash From Operating Activities	99.9	49.2
Cash Flows From Investing Activities:
Capital expenditures	(19.3)	(23.6)
Other	0.3	0.2
Net Cash From Investing Activities	(19.0)	(23.4)
Cash Flows From Financing Activities:
Repayment of external debt	(11.0)	(4.6)
Net Cash Provided From Financing Activities	(11.0)	(4.6)
Net change in cash, cash equivalents and restricted cash	70.2	20.5
Cash, cash equivalents and restricted cash at beginning of period	466.7	1,405.2
Cash, cash equivalents and restricted cash at end of period	536.9	1,425.7
Cash and cash equivalents, end of period	480.0	1,365.3
Restricted Cash and Investments, Current	21.5	24.0
Restricted Cash and Investments, Noncurrent	35.4	36.4
Retained Earnings (Deficit)
Net loss	(249.3)	(119.6)
Cash Flows From Operating Activities:
Net loss	(249.3)	$ (119.6)
Additional Paid-In Capital
Share-based compensation	2.6
Adjustments to reconcile net cash from operating activities:
Share-based compensation	$ 2.6