Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Cash and cash equivalents	$ 338.6	$ 261.9
Accounts receivable, net	464.5	425.9
Inventories, net	470.3	447.4
Deferred income taxes	30.7	21.9
Prepaid expenses and other	39.6	33.4
Assets held for sale	31.4	23.7
Total Current Assets	1,375.1	1,214.2
Property, Plant and Equipment, Net	254.3	270.4
Coal Supply Agreements, Net	57.9	60.0
Long-term Deferred Income Taxes	3.5	5.2
Other Non-current Assets	110.6	108.5
Total Assets	1,801.4	1,658.3
Accounts payable	412.5	414.5
Revolving credit agreements	67.0	13.7
Current maturities of long-term debt	178.1	22.5
Accrued payroll	61.7	61.0
Deferred revenue	11.2	11.2
Other current liabilities	160.7	140.6
Total Current Liabilities	891.2	663.5
Long-term Debt	129.1	355.3
Pension and other Postretirement Obligations	81.0	77.8
Long-term Deferred Income Taxes	12.7	0
Other Long-term Liabilities	110.4	113.5
Total Liabilities	1,224.4	1,210.1
Capital in excess of par value	22.7	22.6
Retained earnings	619.7	475.4
Foreign currency translation adjustment	13.2	28.1
Deferred gain (loss) on cash flow hedgeing	2.6	(9.0)
Pension and postretirement plan adjustment	(90.4)	(78.1)
Total Stockholders' Equity	576.2	447.4
Noncontrolling Interest	0.8	0.8
Total Equity	577.0	448.2
Total Liabilities and Equity	1,801.4	1,658.3
Common Class A [Member]
Common stock	6.8	6.8
Common Class B [Member]
Common stock	$ 1.6	$ 1.6