TREASURY STOCK PURCHASE (Details) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended		12 Months Ended	0 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Aug. 13, 2012 2011-2012 Repurchase Plan	Aug. 31, 2012 2011-2012 Repurchase Plan	Oct. 31, 2011 2011-2012 Repurchase Plan	Dec. 31, 2012 2011-2012 Repurchase Plan	Nov. 13, 2012 November 2012 Repurchase Plan	Dec. 31, 2012 November 2012 Repurchase Plan
TREASURY STOCK PURCHASE
Amount of common stock the board of directors authorized to repurchase					$ 500,000,000	$ 250,000,000		$ 250,000,000
Additional amount of common stock authorized to be purchased by the Board of Directors				250,000,000
Common stock repurchased (in shares)							8,700,000		4,800,000
Average purchase price (in dollars per share)							$ 57.35		$ 49.26
Additional shares purchased, subsequent to period									257,000
Average purchase price, subsequent to period (in dollars per share)									$ 51.99
Common stock repurchased	737,079,000	176,392,000	23,540,000				499,800,000		236,500,000
Number of shares repurchased of common stock from employees in lieu of cash or withholding taxes due	0.01
Cash payment for repurchase of common stock from employees in lieu of cash or withholding taxes due	$ 700,000