STOCKHOLDERS' EQUITY (Details) (USD $)	6 Months Ended		3 Months Ended	6 Months Ended	148 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Common Stock [Member]	Jun. 30, 2014 Common Stock [Member]	Dec. 31, 2013 Common Stock [Member]	Jul. 31, 2014 Subsequent Event [Member] Common Stock [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount					$ 1,026,835,846	$ 150,000,000
Stock Repurchased and Retired During Period, Shares			2,600,000	3,300,000	80,900,000
Stock Repurchased and Retired During Period, Value	81,069,000		62,300,000	81,000,000	926,800,000
Stock Repurchased, Common Stock, Value	81,069,000	52,079,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount			$ 19,000,000	$ 19,000,000