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Stock Compensation (Tables)
 12 Months Ended
Dec. 31, 2016
Equity [Abstract]  
Assumptions Used To Value Share-Based Compensation
 
Year Ended December 31
 
2016
 
2015
 
2014
Dividend yield
3%
 
2%
 
2%
Risk-free interest rate
1%
 
2%
 
2%
Stock volatility
25%
 
28%
 
37%
Average expected life (years)
6
 
6
 
6
Summary Of Option Activity During The Period
A summary of option activity during 2016 is presented below:
 
Shares
 
Weighted-Average
Exercise Price
 
(In thousands, except per share amounts)
Shares under option at December 31, 2015
11,653

 
$32.52
Granted
2,336

 
33.18

Exercised
(2,031
)
 
30.37

Forfeited or expired
(35
)
 
28.89

Shares under option at December 31, 2016
11,923

 
$33.03
 
 
 
 
Exercisable at December 31, 2016
6,784

 
$29.92
Summary Of Restricted Stock Awards And PSUs Activity During The Period
A summary of Restricted Stock Awards and PSUs activity during 2016 is presented below:
 
Restricted
Stock Awards and PSUs
 
Weighted Average
Grant-Date Fair Value
 
(In thousands, except per share amounts)
Non-vested at December 31, 2015
4,020

 
$40.99
Granted
1,818

 
33.31

Vested
(1,010
)
 
31.89

Forfeited
(175
)
 
39.00

Non-vested at December 31, 2016
4,653

 
$40.03