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Shareholders' Equity (Tables)
 12 Months Ended
Dec. 31, 2022
Stock Options and Stock Appreciation Rights (SARs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Valuation Assumptions
The following table illustrates the assumptions used in estimating fair value in the years ended December 31, 2022, 2021 and 2020:

202220212020
Grant date fair value of stock options and SARs$49.88 $42.47 $22.62 
Expected stock price volatility38.45 %39.27 %26.89 %
Risk-free interest rate1.68 %0.81 %0.89 %
Expected annual dividend yield0.56 %0.64 %0.82 %
Expected life of options & SARs (years)5.45.55.5
Schedule of Stock Option and SAR Activity
The following table illustrates the stock option and SAR activity for the year ended December 31, 2022:

Number
of
Shares
(in 000’s)		Weighted-
Average
Exercise
Price
Outstanding at December 31, 20213,264 $80.79 
Granted730 $141.84 
Forfeited(113)$114.72 
Exercised(180)$60.80 
Outstanding at December 31, 20223,701 $92.98 
Exercisable at December 31, 20221,725 $67.66 
Stock options & SARs expected to vest 1,976 $115.09 
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of RSU Activity
The following table illustrates the RSU activity for the year ended December 31, 2022:  

Number
of
Shares
(in 000’s)		Weighted-
Average
Grant-Date
Fair Value
Outstanding at December 31, 202151 $101.55 
Granted21 $136.35 
Vested(25)$100.68 
Forfeited(1)$113.87 
Outstanding at December 31, 202246 $117.91