Financing Arrangements and Derivative Financial Instruments (Details Textual 1) (USD $) In Millions, unless otherwise specified			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011 Global and North American Tire Headquarters [Member]	Apr. 13, 2011 Global and North American Tire Headquarters [Member]	Dec. 31, 2011 Global And North American Tire Headquarters Member
Capital Leased Assets [Line Items]
EstimatedTotalCostOfHeadquartersProject				$ 200
Agreement period for occupying facility			27 years
Estimated cost of project funded by government financing and incentives			60
Estimated total financing liability			140
Long Term Debt and Capital Leases	4,789	4,319
Long-term Debt	$ 4,914	$ 4,489			$ 28