RESTRUCTURING (Restructuring Reserve Assumed from Rohm and Haas) (Details) (Restructuring Reserve Assumed From Rohm and Haas [Member], USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended			6 Months Ended		9 Months Ended	12 Months Ended				3 Months Ended
	Apr. 30, 2009 employees	Dec. 31, 2010 employees	Dec. 31, 2009 employees	Dec. 31, 2009 Employee Severance [Member]	Jun. 30, 2011 Employee Severance [Member]	Dec. 31, 2009 Employee Severance [Member]	Dec. 31, 2009 Employee Severance [Member]	Dec. 31, 2010 Employee Severance [Member]	Apr. 02, 2009 Employee Severance [Member]	Dec. 31, 2010 Severance For Remaining Employees [Member]	Dec. 31, 2010 Termination Benefits for Former Employees [Member]	Mar. 31, 2011 Corporate [Member] Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	1,255	44	552
Restructuring Reserve [Roll Forward]
Restructuring reserve assumed									$ 122
Restructuring reserve, beginning balance					12			68		7	5
Cash payments					(7)		(43)	(25)
Adjustment to reserve				(9)		(9)		(34)				(6)
Foreign currency impact					1	(2)		3
Restructuring reserve, ending balance				$ 68	$ 0	$ 68	$ 68	$ 12		$ 7	$ 5