STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Convertible Preferred Stock) (Details) (USD $)	1 Months Ended	12 Months Ended				1 Months Ended		12 Months Ended			1 Months Ended			9 Months Ended	12 Months Ended
	Feb. 28, 2009	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	May 01, 2010	Mar. 31, 2007 6 3/4% Mandatory Convertible Preferred Stock [Member]	Mar. 31, 2004 6 3/4% Mandatory Convertible Preferred Stock [Member]	Dec. 31, 2010 6 3/4% Mandatory Convertible Preferred Stock [Member]	May 01, 2010 6 3/4% Mandatory Convertible Preferred Stock [Member]	Mar. 28, 2007 6 3/4% Mandatory Convertible Preferred Stock [Member]	Aug. 31, 2009 5 1/2% Convertible Perpetual Preferred Stock [Member]	Mar. 31, 2007 5 1/2% Convertible Perpetual Preferred Stock [Member]	Mar. 31, 2004 5 1/2% Convertible Perpetual Preferred Stock [Member]	Sep. 30, 2009 5 1/2% Convertible Perpetual Preferred Stock [Member]	Dec. 31, 2008 5 1/2% Convertible Perpetual Preferred Stock [Member]
Convertible preferred stock [Line Items]
Shares of preferred stock issued										28,750,000			1,100,000
Convertible preferred stock dividend rate (in hundredths)										6.75%			5.50%
Preferred stock liquidation preference per share										$ 100
Proceeds from Issuance of Preferred Stock and Preference Stock						$ 2,800,000,000							$ 1,100,000,000
Proceeds from Issuance of Common Stock	740,000,000	0	0	740,000,000
Preferred stock liquidation preference value															268,000,000
Maximum dividends per quarter on common stock before changes in preferred stock conversion rate (in dollars per share)							$ 0.15625					$ 0.10
Actual conversion rate of preferred stock into common stock (in shares)					2.7432				2.7432
Conversion rate of preferred stock into common stock (in shares)											43.061
Price per share of common stock upon conversion of preferred stock											$ 23.22
Shares of common stock issued to induce conversion															2,000,000
Value of additional shares of common stock issued to induce conversion															22,000,000
Number of preferred shares outstanding at time of call														831,554
Number of preferred shares converted into common shares								28,749,560						830,529	268,331
Number of common stock shares received by shareholders in conversion								78,900,000						35,800,000	11,500,000
Shares of preferred stock redeemed for cash														1,025
Cash payment for redemption of preferred stock														$ 1,000,000