EQUITY (Tables)

12 Months Ended

Dec. 31, 2012

Equity [Abstract]

Schedule of changes in common shares and treasury stock

Changes in common shares and treasury stock were as follows:

(In millions)	Common Shares Issued	Treasury Stock	Cost of Treasury Stock
Balance as of January 1, 2010	204.5	—	$	—
Stock-based compensation	0.3	0.1	3.1
Treasury stock purchases	—	—	0.1
Balance as of December 31, 2010	204.8	0.1	$	3.2
Stock-based compensation	0.3	—	4.9
Treasury stock purchases	—	1.3	81.6
Balance as of December 31, 2011	205.1	1.4	$	89.7
Stock-based compensation	0.9	0.2	15.2
Treasury stock purchases	—	1.9	139.7
Balance as of December 31, 2012	206.0	3.5	$	244.6