EARNINGS PER COMMON SHARE Parenthetical (Details) (USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended		0 Months Ended	3 Months Ended	9 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Apr. 06, 2013 Warrants on Senior Exchangeable Notes due 2012 [Member]	Mar. 31, 2013 Warrants on Senior Exchangeable Notes due 2012 [Member]	Sep. 30, 2013 Warrants on Senior Exchangeable Notes due 2012 [Member]	Sep. 30, 2013 Warrants on Senior Exchangeable Notes due 2015 [Member]	Sep. 30, 2013 Senior Exchangeable Notes due 2015 - Settlements 1 and 2 [Member]
Class of Warrant or Right [Line Items]
Redemption amount settled							$ 31.5
Beginning Date for Maturity of Warrants					Jan. 15, 2013
Ending Date for Maturity of Warrants					Mar. 27, 2013
Shares issued on conversion of warrants			97,918	2,037,303	2,135,221
Strike price of warrants						39.24
Average Stock Price	$ 56.42	$ 45.65