Income Taxes (Schedule of Deferred Tax Accounts) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Inventory and accounts receivable, deferred tax asset	$ 26.8	$ 34.9
Fixed assets and intangibles, deferred tax asset	4.0	2.6
Postemployment and other benefit liabilities, deferred tax asset	814.3	750.2
Product liability, deferred tax asset	258.7	282.7
Other reserves and accruals, deferred tax asset	213.8	210.9
Net operating losses and credit carryforwards, deferred tax asset	1,002.9	1,075.4
Other, deferred tax asset	148.7	169.7
Gross deferred tax assets	2,469.2	2,526.4
Deferred tax valuation allowances	(333.8)	(378.7)	(352.6)	(247.8)
Deferred tax assets net of valuation allowances	2,135.4	2,147.7
Inventory and accounts receivable, deferred tax liability	(44.9)	(48.5)
Fixed assets and intangibles, deferred tax liability	(2,149.3)	(2,324.1)
Postemployment and other benefit liabilities, deferred tax liability	(4.6)	(2.9)
Other reserves and accruals, deferred tax liability	(6.6)	(12.5)
Other, deferred tax liability	(74.3)	(85.0)
Gross deferred tax liability	(2,279.7)	(2,473.0)
Net deferred tax assets (liabilities)	$ (144.3)	$ (325.3)