Unaudited Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 314.9	$ 338.6
Accounts receivable, net	445.4	464.5
Inventories, net	477.9	470.3
Deferred income taxes	28.8	30.7
Prepaid expenses and other	64.4	39.6
Assets held for sale	10.0	31.4
Total Current Assets	1,341.4	1,375.1
Property, Plant and Equipment, Net	253.3	254.3
Coal Supply Agreement, Net	57.3	57.9
Long-term Deferred Income Taxes	3.7	3.5
Other Non-current Assets	94.1	110.6
Total Assets	1,749.8	1,801.4
Current Liabilities
Accounts payable	412.0	412.5
Revolving credit agreements - not guaranteed by the parent company	45.0	67.0
Current maturities of long-term debt - not guaranteed by the parent company	229.9	178.1
Accrued payroll	32.0	61.7
Deferred revenue	11.7	11.2
Other current liabilities	139.9	160.7
Total Current Liabilities	870.5	891.2
Long-term Debt - not guaranteed by the parent company	63.5	129.1
Pension and other Postretirement Obligations	75.7	81.0
Long-term Deferred Income Taxes	17.1	12.7
Other Long-term Liabilities	112.3	110.4
Total Liabilities	1,139.1	1,224.4
Stockholders' Equity:
Capital in excess of par value	23.2	22.7
Retained earnings	640.4	619.7
Accumulated other comprehensive loss	(62.1)	(74.6)
Total Stockholders' Equity	609.9	576.2
Noncontrolling Interest	0.8	0.8
Total Equity	610.7	577.0
Total Liabilities and Equity	1,749.8	1,801.4
Common Class A [Member]
Stockholders' Equity:
Common stock	6.8	6.8
Common Class B [Member]
Stockholders' Equity:
Common stock	$ 1.6	$ 1.6