STOCK-BASED EMPLOYEE COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Activity of unvested restricted stock units, performance share units and restricted stock

The following table summarizes the activity of unvested restricted stock, restricted stock units and performance share units (“Share-Based Awards”) during the nine months ended September 30, 2012: 

Share-Based Awards	Shares		Weighted Average Grant Date Fair Value
Unvested at December 31, 2011	799,980		$	231.87
Granted	93,239		$	643.45
Vested	(347,378	)	$	105.17
Performance Share Units Adjustment	1,076		$	464.79
Forfeited	(6,122	)	$	407.22
Unvested at September 30, 2012	540,795		$	382.70