Restructuring and Goodwill Impairment Charge (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended		9 Months Ended	12 Months Ended		24 Months Ended	3 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Sep. 30, 2011 Cost of sales [Member]	Sep. 30, 2011 Cost of sales [Member]	Dec. 31, 2010 Cost of sales [Member]	Dec. 31, 2010 Depreciation And Amortization Expenses [Member]	Sep. 30, 2011 Cozad Plant Closing [Member] Position	Dec. 31, 2010 Cozad Plant Closing [Member]	Dec. 31, 2009 Cozad Plant Closing [Member]	Dec. 31, 2010 Cozad Plant Closing [Member]	Sep. 30, 2011 Australia Reporting Unit [Member] Position
Restructuring and Other Charges (Textual) [Abstract]
Restructuring and Related Costs					$ 19	$ 4	$ 7	$ 14	$ 5		$ 10	$ 11
Restructuring and Related Costs settled with Cash										1			16	3
Percentage of expected number of positions eliminated realized										More than 95%
Net decrease in number of positions										60				53
Restructuring Related Costs, Expected Number of Positions Eliminated										500
Goodwill impairment charge	11	0	11	0										11
Additional Restructuring and Other Charges (Textual) [Abstract]
Restructuring And Related Cost Allowed To Be Excluded From The Calculation Of Financial Covenant Ratios	60		60
Cumulative amount of allowable exclusions recognized in calculation of financial covenant ratios	$ 17		$ 17