STOCKHOLDERS' EQUITY (Treasury Stock) (Details) In Millions, unless otherwise specified	12 Months Ended			1 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	May 31, 2009 Dow ESOP [Member]
Equity, Class of Treasury Stock [Line Items]
Shares repurchased to pay tax obligations (in shares)	0.5	0.5	0.5
Shares issued under option and purchase plans (in shares)	5.6	7.5	8.7
Stock option and deferred stock plans (in shares)	0	5.1	12.2
Treasury stock sold to ESOP, shares				36.7