SHAREHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2011

Schedule of Cumulative Repurchasing Activity by Plan

The following table summarizes by repurchase plan the Company’s repurchasing activity:

	Cumulative shares repurchased	Average price  per share
Non-Discretionary Plan (1994 through 2011)	23,120,426	$	22.61
Discretionary Plan (2001 through 2011)	21,156,206	$	35.15

Schedule of Changes to Number of Shares Available for Stock Option Grants by Plan

The following table summarizes by plan stock option activity and shares available for granting of options:

	1985 Plan	2008 Plan		2009 Plan		2010  Plan		2011 Plan
Balance at December 31, 2008	6,912	911,585		—		—		—
Options authorized	—	—		3,000,000		—		—
Options granted	—	—		(2,449,200	)	—		—
Options not granted	—	(911,585	)	—		—		—
Balance at December 31, 2009	6,912	—		550,800		—		—
Options authorized	—	—		—		3,000,000		—
Options granted	—	—		—		(2,634,885	)	—
Options not granted	—	—		(550,800	)	—		—
Balance at December 31, 2010	6,912	—		—		365,115		—
Options authorized	—	—		—		—		3,000,000
Options granted	—	—		—		—		(2,998,390	)
Options not granted	—	—		—		(365,115	)	—
Balance at December 31, 2011	6,912	—		—		—		1,610

Schedule of Stock Option Activity

The following table summarizes information about stock options:

	Number of shares		Weighted average exercise price per share		Weighted average remaining contractual life	Aggregate  intrinsic value  (in thousands)
Outstanding at December 31, 2010	16,293,671		$	34.11
Options granted	2,998,390		$	52.80
Options exercised	(1,605,342	)	$	20.20
Options forfeited	(409,163	)	$	42.59
Options cancelled	(25,327	)	$	38.76
Outstanding at December 31, 2011	17,252,229		$	38.45	5.85	$	98,668
Exercisable at December 31, 2011	8,422,318		$	32.07	3.48	$	89,452

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used

The fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following assumptions:

	For the years ended December 31,
	2011			2010			2009
Dividend yield	.97 - .98%			1.07 - 1.08%			1.22 - 1.25%
Volatility – stock option plans	38 - 40%			38 - 40%			38 - 39%
Volatility – stock purchase rights plans	26		%	29		%	59		%
Risk-free interest rates	.19 - 2.84%			.29 - 2.86%			.48 - 3.37%
Expected life (years) – stock option plans	5.50 - 7.11			5.44 - 6.90			6.09 - 7.86
Expected life (years) – stock purchase rights plans	1			1			1
Weighted average fair value of stock options granted during the period	$	19.35		$	14.51		$	13.84
Weighted average fair value of stock purchase rights granted during the period	$	11.70		$	11.16		$	12.78

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Total stock compensation expense and the total related tax benefit recognized are as follows:

	For the years ended December 31,
	2011		2010		2009
Stock compensation expense	$	44,278	$	43,743	$	39,135
Recognized tax benefit	$	156	$	187	$	258