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Equity Based Compensation (Tables)
12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
The following table presents a summary of options and SARs activity:
  
Number of Options and SARsWeighted-Average Exercise/Conversion PriceAggregate Intrinsic Value (in millions)
Outstanding at December 31, 20202,168,395 $102.30 
Granted200,239 $129.01 
Exercised(144,042)$60.47 
Forfeited(1,878)$129.01 
Outstanding at December 31, 20212,222,714 $107.39 $28.7 
Awards exercisable1,800,569 $103.30 $28.7 
Share-based Payment Arrangement, Option, Exercise Price Range [Table Text Block]
 Awards OutstandingAwards Exercisable
Range of Exercise PricesNumber Outstanding as
of 12/31/2021
Weighted-Average
Remaining
Contractual Life (years)
Weighted-
Average Exercise
Price
Number
Exercisable as of
12/31/2021
Weighted-Average
Exercise Price
$50.00 – $89.99
368,754 1.3$64.03 368,754 $64.03 
$90.00 – $99.99
703,305 3.8$92.55 703,305 $92.55 
$100.00 – $139.99
805,743 7.8$122.90 430,718 $123.44 
$140.00 +
344,912 6.7$147.80 297,792 $148.20 
Totals2,222,714 5.3$107.39 1,800,569 $103.30 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
The following table presents the weighted average assumptions used to determine the fair value of SARs issued:
For the years ended December 31,202120202019
Dividend yield2.17 %2.37 %1.65 %
Risk-free rate of return1.04 %0.69 %2.67 %
Expected volatility34.5 %18.8 %18.2 %
Expected life (years)6.37.06.0
Weighted average exercise price of stock options granted$129.01 $117.85 $145.25 
Weighted average fair value of stock options granted$34.93 $15.14 $26.59 
Share-based Payment Arrangement, Activity [Table Text Block]
The following table presents a summary of Performance Share and Restricted Stock Unit activity:
  
Performance Contingent Awards    Restricted Stock Units
Outstanding at December 31, 2020291,129 76,390 
Granted167,862 328,491 
Change in units based on performance factor(117,589)— 
Paid— (18,487)
Forfeited(997)(6,506)
Outstanding at December 31, 2021 (1)
340,405 379,888 
(1)Amount outstanding at December 31, 2021, includes the amount of shares to be issued under RSUs expected to vest and number of shares to be issued under performance continent awards at target performance. The amount of shares do not reflect potential increases or decreases that may result from the performance factor results except for the 2019 – 2021 grants which vested as of December 31, 2021.