Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Apr. 01, 2021
Operating activities
Net loss	$ (52.8)	$ (171.6)
Adjustments to reconcile net loss to net cash used in operating activities
Depreciation and amortization expense	85.2	80.3
Amortization of deferred financing fees	1.8	2.3
Accretion of customer supply agreement	0.7	0.6
Employee Benefit and Share-based Payment Arrangement, Noncash	8.2	6.6
Loss on Derivative Instruments, Pretax	(0.7)	(0.1)
(Gain) loss from foreign currency transactions	(16.8)	7.2
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	0.0	(0.3)
Deferred taxes	(27.2)	(0.9)
Increase (Decrease) in Obligation, Pension and Other Postretirement Benefits	(22.3)	(15.2)
Grant liability amortization	(0.4)	(0.4)
Unrealized Gain (Loss) on Investments	0.4	0.4
Increase (Decrease) in Forward Provision	(33.7)	(3.5)
Changes in assets and liabilities
Accounts receivable, net	(123.3)	(38.3)
Inventory, net	(14.3)	23.1
Accounts payable and accrued liabilities	80.1	(6.4)
Profit sharing/deferred compensation	(43.7)	(42.6)
Advance payments	(31.4)	(0.8)
Income taxes receivable/payable	14.7	3.6
Deferred revenue and other deferred credits	(35.4)	1.5
Other	(22.0)	(18.3)
Net cash used in operating activities	(270.2)	(170.2)
Investing activities
Purchase of property, plant and equipment	(27.7)	(27.6)
Payments for (Proceeds from) Other Investing Activities	0.0	1.2
Net cash used in investing activities	(27.7)	(26.4)
Financing activities
Proceeds from (Repayments of) Other Debt	0.0	(2.5)
Principal payments of debt	(11.1)	(9.8)
Repayments of Debt	(1.5)	(1.0)
Repayments of Lines of Credit	0.0	(300.0)
Payment, Tax Withholding, Share-based Payment Arrangement	(5.3)	(3.3)
Proceeds from Stock Plans	1.9	1.4
Payments of Dividends	(1.1)	(1.1)
Proceeds from (Payments for) Other Financing Activities	(11.0)	(0.1)
Net cash used in financing activities	(28.1)	(316.4)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(326.8)	(514.0)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Beginning Balance	1,498.4	1,893.1
Cash, cash equivalents, and restricted cash, end of period	1,171.6	1,379.1
Cash and Cash Equivalents, at Carrying Value, Ending Balance	1,151.8	1,359.3
Reconciliation of Cash, Cash Equivalents, and Restricted Cash [Abstract]
Restricted Cash, Current	0.3	0.3
Restricted Cash, Noncurrent	19.5	19.5
Increase (Decrease) in Income Taxes Payable	14.7	3.6
Increase (Decrease) in Contract with Customer, Liability	(26.0)	(1.7)
Increase (Decrease) in Accrued Taxes Payable	0.0	(1.9)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(0.8)	(1.0)
Increase (Decrease) in Contract with Customer, Asset	$ 11.3	$ (5.6)