EQUITY (Tables)

12 Months Ended

Dec. 31, 2011

EQUITY

Schedule of changes in common shares and treasury stock

(In millions)	Common Shares Issued		Treasury Stock		Cost of Treasury Stock
Balance—January 1, 2009		—		—	$	—
IPO		204.5		—		—
Balance—December 31, 2009		204.5		—		—
Stock-based compensation		0.3		0.1		3.1
Treasury stock purchases		—		—		0.1
Balance—December 31, 2010		204.8		0.1	$	3.2
Stock-based compensation		0.3		—		4.9
Treasury stock purchases		—		1.3		81.6
Balance—December 31, 2011		205.1		1.4	$	89.7