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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Millions, unless otherwise specified
 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Operating activities    
Net income $ 55.0 $ 84.5
Adjustments to Reconcile Net Income to Cash Provided by Operating Activities    
Depreciation and amortization 73.7 68.8
Deferred income taxes (1.1) 22.3
Stock-based compensation 0.6 3.1
Pensions and other postretirement benefits, net of contributions (29.5) 1.6
Loss (gain) on disposal of property, plant and equipment, net 0.8 (6.5)
Debt refinancing and redemption costs 0 1.8
Changes in Operating Assets and Liabilities    
Accounts receivable (142.6) (50.3)
Inventories (34.2) (16.8)
Accounts payable and accrued expenses 135.3 67.3
Deferred revenue (16.7) (37.7)
Other assets and liabilities (16.7) (21.6)
Net cash provided by operating activities 24.6 116.5
Investing activities    
Purchases of property, plant and equipment (92.9) (71.6)
Proceeds from sale of property, plant and equipment 1.2 7.8
Net cash used in investing activities (91.7) (63.8)
Financing Activities    
Net short-term repayments under credit facilities (1.7) 0
Payments of other long-term debt and capital lease obligations (18.0) (49.2)
Proceeds from issuance of long-term debt 12.4 1.8
Debt issuance costs 0 (5.3)
Purchase of noncontrolling interest (4.0) 0
Purchase of treasury stock (5.9) (0.1)
Employee stock option exercises 0.1 4.6
Net cash used in financing activities (17.1) (48.2)
Effect of exchange rate changes on cash 0.2 1.2
Net increase (decrease) in cash and cash equivalents (84.0) 5.7
Cash and cash equivalents at beginning of period 169.2 244.6
Cash and cash equivalents at end of period 85.2 250.3
Supplemental Cash Flow Information    
Interest paid 43.1 38.2
Income taxes paid, net of refunds $ 10.0 $ 2.8