CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016
Operating Activities:
Net income (loss)		$ 34.5	$ (113.6)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization		80.6	87.8
Deferred taxes		7.6	(62.4)
Changes in operating assets and liabilities:
Inventories		(39.2)	177.3
Accounts receivable		(86.5)	(92.2)
Accounts payable		58.2	(37.3)
Retirement benefits (a)	[1]	(135.0)	10.3
Accrued income taxes		0.9	0.1
Accrued liabilities and other		(6.6)	(3.6)
Cash used in operating activities		(85.5)	(33.6)
Investing Activities:
Purchases of property, plant and equipment		(55.3)	(145.3)
Asset disposals and other		3.3	1.8
Cash used in investing activities		(52.0)	(143.5)
Financing Activities:
Borrowings on long-term debt		7.3	387.5
Payments on long-term debt and capital leases		(0.8)	(0.6)
Net borrowings under credit facilities		59.4	2.5
Debt issuance costs		(0.8)	(10.4)
Dividends paid to stockholders		0.0	(17.2)
Acquisition of noncontrolling interests		0.0	(12.2)
Sale to noncontrolling Interests		2.2	0.0
Shares repurchased for income tax withholding on share-based compensation		(4.8)	0.0
Cash provided by financing activities		62.5	349.6
Increase (decrease) in cash and cash equivalents
Increase (decrease) in cash and cash equivalents		(75.0)	172.5
Cash and cash equivalents at beginning of period		229.6	149.8
Cash and cash equivalents at end of period		$ 154.6	$ 322.3

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