Restructuring Related Activities (Details 4) (USD $) In Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010	Dec. 31, 2009
Summary of accrued expenses within accompanying unaudited condensed consolidated balance sheets
Accrued, Beginning Balance	$ 55	$ 22
Charges	56	98	22
Cash Payments	(51)	(65)
Accrued, Ending Balance	60	55	22
2010 Restructuring Plan [Member] | Termination Benefits [Member]
Summary of accrued expenses within accompanying unaudited condensed consolidated balance sheets
Accrued, Beginning Balance	21
Charges	29	66
Cash Payments	(25)	(45)
Accrued, Ending Balance	25	21
Plant Network Optimization [Member] | Termination Benefits [Member]
Summary of accrued expenses within accompanying unaudited condensed consolidated balance sheets
Accrued, Beginning Balance	26	22
Charges	7	4	22
Cash Payments	(1)
Accrued, Ending Balance	32	26	22
2010 Restructuring Plan [Member] | Other [Member]
Summary of accrued expenses within accompanying unaudited condensed consolidated balance sheets
Accrued, Beginning Balance	8
Charges	20	28
Cash Payments	(25)	(20)
Accrued, Ending Balance	3	8
2010 Restructuring Plan [Member]
Summary of accrued expenses within accompanying unaudited condensed consolidated balance sheets
Accrued, Beginning Balance	29
Charges	49	94
Cash Payments	(50)	(65)
Accrued, Ending Balance	$ 28	$ 29