XML 24 R83.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
STOCK-BASED COMPENSATION - Changes in Outstanding Stock Options (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
$ / shares
shares
Number of Shares  
Balance at beginning of period (shares) | shares 5,814
Granted (shares) | shares 0
Exercised (shares) | shares (911)
Forfeited (shares) | shares (15)
Expired (shares) | shares (1)
Balance at end of period (shares) | shares 4,887
Options exercisable (shares) | shares 3,851
Weighted Average Exercise Price  
Balance at beginning of period (USD per share) | $ / shares $ 62.97
Granted (USD per share) | $ / shares 0
Exercised (USD per share) | $ / shares 53.41
Forfeited (USD per share) | $ / shares 101.01
Expired (USD per share) | $ / shares 124.29
Balance at end of period (USD per share) | $ / shares 64.63
Options exercisable (USD per share) | $ / shares $ 62.83
Weighted Average Remaining Contractual Term (In Years)  
Remaining term at end of period 5 years 3 months 18 days
Term of options exercisable 4 years 10 months 24 days
Aggregate Intrinsic Value  
Balance at end of period | $ $ 901,629
Options exercisable | $ $ 717,388