STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Common Stock) (Details) (USD $)	1 Months Ended					3 Months Ended		12 Months Ended
	Feb. 29, 2012	Jun. 30, 2011	Dec. 31, 2010	Oct. 31, 2010	Apr. 30, 2010	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION (Common Stock) [Abstract]
Authorized shares of capital stock							1,850,000,000	1,850,000,000
Authorized shares of common stock							1,800,000,000	1,800,000,000
Authorized shares of preferred stock							50,000,000	50,000,000
Remaining shares available under open-market share purchase program								23,700,000
Authorized annual rate of common stock dividend (in dollars per share)	$ 1.25			$ 1.00	$ 0.60
Supplemental common stock dividend (in dollars per share)		$ 0.50	$ 0.50
Authorized quarterly rate of common stock dividend (in dollars per share)								$ 0.3125
Dividends Payable, Date Declared							Dec. 26, 2012
Dividends Payable, Date to be Paid						Feb. 01, 2013
Dividends Payable, Date of Record						Jan. 15, 2013