Financial Information for Subsidiary and Guarantor Parent (B.S.) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 138.0	$ 304.6	$ 250.3	$ 380.6
Accounts Receivable Net Current	681.5	613.3
Total inventories, net	1,537.5	1,536.6
Prepaid expenses and other current assets	89.4	56.1
Total Current Assets	2,446.4	2,510.6
Property, plant and equipment, net	2,597.2	2,559.9
Cost in excess of net assets acquired	736.3	740.1
Deferred income taxes	31.3	71.5
Investments in subsidiaries and other assets	363.1	365.7
Total Assets	6,174.3	6,247.8
Deferred income taxes	0	0
LIABILITIES AND EQUITY
Accounts payable	479.4	499.9
Accrued liabilities	280.0	330.5
Deferred income tax liability current	36.6	24.0
Debt Current	17.1	17.1
Total Current Liabilities	813.1	871.5
Long-term debt	1,462.0	1,463.0
Accrued postretirement benefits	487.8	495.2
Pension liabilities	713.7	721.1
Deferred income taxes	0	0
Other long-term liabilities	101.0	109.9
Total Liabilities	3,577.6	3,660.7
Stockholders' Equity	2,596.7	2,587.1	2,613.9	2,571.6
Total Liabilities and Equity	6,174.3	6,247.8
[ParentCompanyMember]
ASSETS
Cash and cash equivalents	4.3	5.5
Accounts Receivable Net Current	0.2	0.4
Total inventories, net	0	0
Prepaid expenses and other current assets	33.1	1.1
Total Current Assets	37.6	7.0
Property, plant and equipment, net	3.7	3.9
Cost in excess of net assets acquired	0	0
Deferred income taxes	31.3	71.5
Investments in subsidiaries and other assets	5,508.3	5,595.9
Total Assets	5,580.9	5,678.3
LIABILITIES AND EQUITY
Accounts payable	3.3	5.3
Accrued liabilities	1,026.9	1,137.4
Deferred income tax liability current	36.6	24.0
Debt Current	0.3	0.3
Total Current Liabilities	1,067.1	1,167.0
Long-term debt	1,253.5	1,253.4
Accrued postretirement benefits	0	0
Pension liabilities	647.2	651.7
Deferred income taxes	0	0
Other long-term liabilities	16.4	19.1
Total Liabilities	2,984.2	3,091.2
Stockholders' Equity	2,596.7	2,587.1
Total Liabilities and Equity	5,580.9	5,678.3
[SubsidiariesMember]
ASSETS
Cash and cash equivalents	8.5	13.1
Accounts Receivable Net Current	217.5	190.1
Total inventories, net	333.5	311.1
Prepaid expenses and other current assets	13.9	10.2
Total Current Assets	573.4	524.5
Property, plant and equipment, net	946.9	882.2
Cost in excess of net assets acquired	112.1	112.1
Deferred income taxes	0	0
Investments in subsidiaries and other assets	205.4	210.3
Total Assets	1,837.8	1,729.1
LIABILITIES AND EQUITY
Accounts payable	264.5	262.6
Accrued liabilities	554.2	419.8
Deferred income tax liability current	0	0
Debt Current	0.1	0.1
Total Current Liabilities	818.8	682.5
Long-term debt	350.5	350.6
Accrued postretirement benefits	193.6	198.2
Pension liabilities	5.0	5.1
Deferred income taxes	0	0
Other long-term liabilities	18.8	20.8
Total Liabilities	1,386.7	1,257.2
Stockholders' Equity	451.1	471.9
Total Liabilities and Equity	1,837.8	1,729.1
[NonGuarantorSubsidiariesMember]
ASSETS
Cash and cash equivalents	125.2	286.0
Accounts Receivable Net Current	463.8	422.8
Total inventories, net	1,204.0	1,225.5
Prepaid expenses and other current assets	42.4	44.8
Total Current Assets	1,835.4	1,979.1
Property, plant and equipment, net	1,646.6	1,673.8
Cost in excess of net assets acquired	624.2	628.0
Deferred income taxes	0	0
Investments in subsidiaries and other assets	795.3	657.0
Total Assets	4,901.5	4,937.9
LIABILITIES AND EQUITY
Accounts payable	211.6	232.0
Accrued liabilities	314.9	401.1
Deferred income tax liability current	0	0
Debt Current	16.7	16.7
Total Current Liabilities	543.2	649.8
Long-term debt	58.0	59.1
Accrued postretirement benefits	294.2	297.0
Pension liabilities	61.5	64.3
Deferred income taxes	0	0
Other long-term liabilities	65.8	70.0
Total Liabilities	1,022.7	1,140.2
Stockholders' Equity	3,878.8	3,797.7
Total Liabilities and Equity	4,901.5	4,937.9
[ConsolidationEliminationsMember]
ASSETS
Cash and cash equivalents	0	0
Accounts Receivable Net Current	0	0
Total inventories, net	0	0
Prepaid expenses and other current assets	0	0
Total Current Assets	0	0
Property, plant and equipment, net	0	0
Cost in excess of net assets acquired	0	0
Deferred income taxes	0	0
Investments in subsidiaries and other assets	(6,145.9)	(6,097.5)
Total Assets	(6,145.9)	(6,097.5)
LIABILITIES AND EQUITY
Accounts payable	0	0
Accrued liabilities	(1,616.0)	(1,627.8)
Deferred income tax liability current	0	0
Debt Current	0	0
Total Current Liabilities	(1,616.0)	(1,627.8)
Long-term debt	(200.0)	(200.1)
Accrued postretirement benefits	0	0
Pension liabilities	0	0
Deferred income taxes	0	0
Other long-term liabilities	0	0
Total Liabilities	(1,816.0)	(1,827.9)
Stockholders' Equity	(4,329.9)	(4,269.6)
Total Liabilities and Equity	$ (6,145.9)	$ (6,097.5)