Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016	Dec. 31, 2015
Operating Activities:
Net loss	$ (79.7)		$ (627.1)	$ (365.9)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	160.8		170.3	189.9
Deferred taxes	(1.4)		(119.8)	(118.0)
Impairment of goodwill	114.4		0.0	126.6
Non-cash restructuring charges	0.0		471.3	54.5
Debt extinguishment charge	37.0		0.0	0.0
Change in operating assets and liabilities:
Retirement benefits (a)	(110.3)	[1]	(80.0)	14.3
Accounts receivable	(93.2)		(51.8)	203.3
Inventories	(139.2)		234.7	201.2
Accounts payable	125.8		(51.2)	(211.3)
Accrued income taxes	(1.9)		9.3	55.8
Accrued liabilities and other	10.1		0.6	(19.0)
Cash provided by (used in) operating activities	22.4		(43.7)	131.4
Investing Activities:
Purchases of property, plant and equipment	(122.7)		(202.2)	(144.5)
Purchases of businesses, net of cash acquired	0.0		0.0	(0.5)
Asset disposals and other	3.1		2.2	(0.1)
Cash flows provided by (used in) investing activities	(119.6)		(200.0)	(145.1)
Financing Activities:
Borrowings on long-term debt	8.5		387.5	0.0
Payments on long-term debt and capital leases	(353.0)		(2.7)	(23.6)
Net borrowings under credit facilities	1.6		3.1	1.5
Debt issuance costs	(0.8)		(10.4)	0.0
Debt extinguishment charge	(35.8)		0.0	0.0
Issuance of common stock	397.8		0.0	0.0
Dividends paid to shareholders	0.0		(25.8)	(66.5)
Dividends paid to noncontrolling interests	(8.0)		(16.0)	(16.0)
Sale to noncontrolling interest	3.7		0.0	0.0
Acquisition of noncontrolling interests	0.0		(12.2)	0.0
Shares repurchased for income tax withholding on share-based compensation	(4.8)		0.0	(1.4)
Cash provided by (used in) financing activities	9.2		323.5	(106.0)
Increase (decrease) in cash and cash equivalents	(88.0)		79.8	(119.7)
Cash and cash equivalents at beginning of year	229.6		149.8	269.5
Cash and cash equivalents at end of year	$ 141.6		$ 229.6	$ 149.8

[1] Includes a $(135) million contribution to the U.S. defined benefit pension plan in 2017 and a $(115) million contribution to the U.S. defined benefit pension plan in 2016.