EARNINGS PER COMMON SHARE (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended		3 Months Ended		18 Months Ended
	Jul. 31, 2012	Oct. 31, 2011	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013
EARNINGS PER COMMON SHARE
Antidilutive securities excluded from the calculation of diluted earnings (loss) per share			1.4
Reconciliation of the shares used in the computation of earnings (loss) per share
Weighted average shares outstanding - Basic			98.2	98.3
Dilutive effect of common share equivalents				0.8
Weighted average shares outstanding - Diluted			98.2	99.1
Repurchase of common stock
Value of common stock authorized to be repurchased	$ 100	$ 50
Period over which repurchase of shares of common stock was authorized		12 months
Number of shares repurchased			0		3.4
Cost of shares repurchased			$ 0		$ 41