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STOCK COMPENSATION (Tables)
 3 Months Ended
Mar. 31, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Stock Options Fair Value Assumptions

The weighted-average Black-Scholes assumptions used in estimating the fair value of stock options granted during the period, along with the weighted-average grant-date fair values, were as follows.

 

 

 

Three months ended

March 31,

 

 

 

2017

 

 

2016

 

Expected volatility

 

 

19

%

 

 

20

%

Expected life (in years)

 

 

5.5

 

 

 

5.5

 

Risk-free interest rate

 

 

2.1

%

 

 

1.4

%

Dividend yield

 

 

1.0

%

 

 

1.2

%

Fair value per stock option

 

$

10

 

 

$

7