Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating activities
Net income	$ 366.7	$ 137.1	$ 114.5
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities
Asset impairments and related indirect inventory obsolescence	5.8	8.7	8.7
Depreciation and amortization	152.2	139.4	131.6
Deferred income taxes	(343.8)	17.2	(8.0)
Stock-based compensation	2.4	4.5	9.4
Pensions and other postretirement benefits, net of contributions	(208.4)	(33.3)	(28.8)
(Gain) loss on retirement of equipment and held-for-sale assets, net	(1.9)	(6.9)	2.9
Debt refinancing and redemption costs	1.5	1.8	0
Changes in Operating Assets and Liabilities
Accounts receivable	(130.6)	(189.9)	(14.8)
Inventories	(49.9)	(50.2)	(38.9)
Accounts payable and accrued expenses	60.9	37.1	112.0
Deferred revenue	(21.6)	(74.7)	(70.1)
Other assets and liabilities	(8.8)	(47.1)	21.8
Net cash provided by (used in) operating activities	(175.5)	(56.3)	240.3
Investing activities
Purchases of property, plant and equipment	(207.6)	(163.1)	(108.3)
Proceeds from sale of property, plant and equipment	10.1	8.9	4.9
Sale Leaseback Transaction, Net Proceeds	12.1	0	0
Purchase buyouts of leased equipment	0	(13.4)	(7.8)
Acquisition, net	0	(16.5)	(2.2)
Redemption of short-term investments	0	0	6.4
Net cash used in investing activities	(185.4)	(184.1)	(107.0)
Financing Activities
Net short-term borrowings (repayments) under credit facilities	10.4	2.6	(60.0)
Proceeds from issuance of long-term debt	562.6	227.0	6.2
Payments of other long-term debt and capital lease obligations	(299.1)	(56.0)	(8.1)
Debt issuance costs	(10.6)	(10.9)	(2.2)
Purchase of noncontrolling interest	(4.0)	0	(2.1)
Employee stock option exercises, including tax benefit	0.1	4.6	1.1
Purchase of treasury stock	(5.9)	(0.1)	(1.3)
Net cash provided by (used in) financing activities	253.5	167.2	(66.4)
Effect of exchange rate changes on cash	0.6	(2.2)	(0.4)
Net increase (decrease) in cash and cash equivalents	(106.8)	(75.4)	66.5
Cash and cash equivalents at beginning of year	169.2	244.6	178.1
Cash and cash equivalents at end of year	62.4	169.2	244.6
Supplemental Cash Flow Information
Interest paid	88.9	73.1	61.6
Income taxes paid (refunds received)	$ 14.7	$ 10.9	$ (43.1)