EQUITY (Details 2) (USD $) In Millions, except Per Share data	1 Months Ended	9 Months Ended
	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010
Changes in common shares and treasury stock
Common stock issued, balance at beginning of period (in shares)		204.8
Common stock issued, balance at end of period (in shares)		204.9
Balance, beginning of period		$ (3.2)
Treasury stock purchases		(81.6)	(0.2)
Balance, end of period		(84.8)
Common Shares Issued
Changes in common shares and treasury stock
Common stock issued, balance at beginning of period (in shares)		204.8	204.5
Stock-based compensation (in shares)		0.1	0.1
Common stock issued, balance at end of period (in shares)		204.9	204.6
Treasury Stock
Changes in common shares and treasury stock
Treasury stock balance at beginning of period (in shares)		(0.1)
Treasury stock purchases (in shares)		(1.2)
Treasury stock balance at end of period (in shares)		(1.3)
Balance, beginning of period		(3.2)
Stock-based compensation			(0.1)
Treasury stock purchases		(81.6)	(0.1)
Balance, end of period		(84.8)	(0.2)
Shares authorized to be repurchased (in shares)	$ 300
Shares repurchased, average cost per share (in dollars per share)		$ 64.70