CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
OPERATING ACTIVITIES
Net income (loss)	$ 4.4	$ 99.0	$ (92.7)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Impairment charges-net	1.9	25.8	99.3
Depreciation and amortization	130.5	150.3	169.2
(Benefit) provision for credit losses	(4.0)	6.7	7.4
Share-based compensation	7.1	8.1	10.9
Deferred income taxes	12.9	(14.7)	21.5
Changes in uncertain tax positions	(7.3)	(3.6)	(0.9)
Gains from sales of property, plant and equipment	(12.4)	(148.0)	(15.1)
Loss on debt extinguishment	7.1	3.0	0.8
Net pension and other postretirement benefits plan income	(18.9)	(13.8)	(16.1)
Other	12.1	20.9	15.1
Changes in operating assets and liabilities - net of dispositions and acquisitions:
Accounts receivable-net	(42.4)	16.1	72.2
Inventories	(50.9)	5.8	15.2
Prepaid expenses and other current assets	(5.1)	(5.2)	(9.2)
Accounts payable	79.1	3.5	(96.4)
Income taxes payable and receivable	0.7	(25.6)	(27.1)
Accrued liabilities and other	(17.7)	31.0	(6.2)
Pension and other postretirement benefits plan contributions	(5.0)	(9.5)	(8.6)
Net cash provided by operating activities	92.1	149.8	139.3
INVESTING ACTIVITIES
Capital expenditures	(73.3)	(85.6)	(138.8)
Acquisition of business			(3.0)
Dispositions of businesses, net of cash disposed	(1.4)	247.6	50.6
Proceeds from sales of property, plant and equipment	19.2	43.0	65.4
Proceeds related to life insurance policies	0.2	100.0
Net cash (used in) provided by investing activities	(55.3)	305.0	(25.8)
FINANCING ACTIVITIES
Proceeds from issuance of long-term debt	451.1
Payments on other short-term debt			(37.9)
Payments of current maturities and long-term debt	(524.8)	(281.0)	(223.0)
Proceeds from credit facility borrowings	1,168.0	633.0	1,250.8
Payments on credit facility borrowings	(1,136.0)	(675.0)	(1,267.8)
Debt issuance costs	(8.2)		(0.3)
Dividends paid		(2.1)	(8.5)
Payments of withholding taxes on share-based compensation	(22.6)	(0.6)	(1.1)
Other financing activities	(2.8)	(3.6)	(1.6)
Net cash used in financing activities	(75.3)	(329.3)	(289.4)
Effect of exchange rate on cash, cash equivalents and restricted cash	1.2	8.3	(3.9)
Net (decrease) increase in cash, cash equivalents and restricted cash	(37.3)	133.8	(179.8)
Cash, cash equivalents and restricted cash at beginning of year	357.6	223.8	403.6
Cash, cash equivalents and restricted cash at end of period	$ 320.3	357.6	223.8
Supplemental cash flow disclosures:
Operating cash flows (used in) provided by discontinued operations		(1.4)	20.7
Investing cash flows provided by (used in) discontinued operations		$ 239.5	$ (2.8)