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STOCK OWNERSHIP AND COMPENSATION PLANS (Tables)
 12 Months Ended
Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Schedule of Assumptions Used in Valuing The Company's Stock Options
The weighted average assumptions used in valuing options granted in the periods presented are:

 
2012
 
2011
 
2010
 
 
 
 
 
 
Weighted average fair value of options at grant date
$15.87
 
$18.08
 
$17.60
Expected volatility
27%
 
27.2%
 
26.8%
Dividend yield
0.9%
 
0.8%
 
0.7%
Risk-free interest rate
1.3% - 1.5%
 
2.7% - 3.1%
 
2.8% - 3.2%
Expected holding period, in years
6.7 - 7.5
 
6.8 - 7.6
 
6.7 - 7.6
Summary of Transactions Under The Company's Stock Option Plans
Transactions under the stock option plans for 2012 were as follows:
 



Shares
(in thousands)
 


Weighted
Average Exercise Price
 
Weighted Average Remaining Contractual Term
(in years)
 

Aggregate Intrinsic Value
(in thousands)
 
 
 
 
 
 
 
 
Options outstanding, beginning of year
10,309

 
$
49.16

 
 
 
 
Options granted
1,409

 
57.71

 
 
 
 
Options exercised
(3,467
)
 
46.76

 
 
 
 
Options forfeited and canceled
(500
)
 
51.47

 
 
 
 
 
 
 
 
 
 
 
 
Options outstanding, end of year
7,751

 
$
51.68

 
5.0
 
$
51,146

 
 
 
 
 
 
 
 
Exercisable, end of year
5,537

 
$
49.51

 
2.4
 
$
48,564

Vested and expected to vest, end of year
7,676

 
$
51.63

 
5.0
 
$
51,071
Summary of Transactions Under Stock Awards Other Than Option Awards
The following summarizes the activity relative to stock awards, including restricted stock awards, restricted stock units and performance share units, for 2012, 2011 and 2010:

 
2012
 
2011
 
2010
 
Shares
(in thousands)
 
Weighted
Average
Grant Date
Fair Value
 
Shares
(in thousands)
 
Weighted
Average
Grant Date
Fair Value
 

Shares
(in thousands)
 
Weighted
Average
Grant Date
Fair Value
Shares outstanding, beginning of year
1,957

 
$
54.61

 
2,140

 
$
51.54

 
2,747

 
$
50.27

Shares granted
779

 
57.78

 
877

 
56.81

 
876

 
55.44

Shares vested
(899
)
 
52.62

 
(930
)
 
48.93

 
(742
)
 
51.48

Shares forfeited and canceled
(97
)
 
57.09

 
(100
)
 
55.47

 
(130
)
 
52.34

Adjustment to estimate of performance share units to be earned
(544
)
 
57.06

 
(30
)
 
53.23

 
(611
)
 
51.33

 
 
 
 
 
 
 
 
 
 
 
 
Shares outstanding, end of year
1,196

 
$
56.84

 
1,957

 
$
54.61

 
2,140

 
$
51.54