Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Changes in Outstanding Options and Weighed-Average Exercise Price Per Share (Details)

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STOCK-BASED COMPENSATION - Changes in Outstanding Options and Weighed-Average Exercise Price Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Shares      
Outstanding at the beginning of the year (in shares) 1,831 1,825 1,462
Granted (all at market price) (in shares) 314 433 740
Exercised (in shares) (341) (365) (307)
Forfeited and canceled (in shares) (94) (62) (70)
Outstanding at the end of the year (in shares) 1,710 1,831 1,825
Vested and expected to vest at end of year (in shares) 1,690    
Exercisable at end of year (in shares) 522 563 643
Weighted-Average Exercise Price      
Outstanding at the beginning of the year (in dollars per share) $ 137.01 $ 122.46 $ 103.50
Granted (all at market price) (in dollars per share) 184.03 158.62 112.48
Exercised (in dollars per share) 114.35 106.04 72.45
Forfeited and canceled (in dollars per share) 145.92 147.83 123.62
Outstanding at the end of the year (in dollars per share) 149.67 137.01 122.46
Vested and expected to vest at end of year (in dollars per share) 149.36    
Exercisable at end of year (in dollars per share) $ 129.57 $ 112.11 $ 104.95
Weighted-Average Remaining Contractual Term      
Outstanding at the end of the year 5 years 3 months 18 days    
Vested and expected to vest at end of year 5 years 3 months 18 days    
Exercisable at end of year 5 years 8 months 12 days    
Aggregate Intrinsic Value      
Outstanding at the end of the year $ 240.9    
Vested and expected to vest at end of year 238.6    
Exercisable at end of year $ 84.1