XML 68 R56.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-Based Compensation (Summary Of Stock Award Activity Under Incentive Plan) (Details)
shares in Thousands
 12 Months Ended
Dec. 31, 2021
$ / shares
shares
Restricted Stock Units - 2011 Stock Incentive Plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, beginning of year, Shares | shares 92
Outstanding, beginning of year, Grant Date Fair Value | $ / shares $ 631.66
Granted, Shares | shares 25
Granted, Grant Date Fair Value | $ / shares $ 1,492.15
Vested, Shares | shares (50)
Vested, Grant Date Fair Value | $ / shares $ 497.97
Forfeited, Shares | shares (9)
Forfeited, Grant Date Fair Value | $ / shares $ 1,021.45
Outstanding, end of year, Shares | shares 58
Outstanding, end of year, Grant Date Fair Value | $ / shares $ 1,064.67
Vested and expected to vest, end of year, Shares | shares 53
Vested and expected to vest, end of year, Grant Date Fair Value | $ / shares $ 1,042.33
Performance Shares - 2011 Stock Incentive Plan [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding, beginning of year, Shares | shares 150
Outstanding, beginning of year, Grant Date Fair Value | $ / shares $ 846.22
Granted, Shares | shares 18
Granted, Grant Date Fair Value | $ / shares $ 1,479.55
Vested, Shares | shares (62)
Vested, Grant Date Fair Value | $ / shares $ 891.17
Expired, Shares | shares (1)
Expired, Grant Date Fair Value | $ / shares $ 946.17
Outstanding, end of year, Shares | shares 105
Outstanding, end of year, Grant Date Fair Value | $ / shares $ 928.28
Vested and expected to vest, end of year, Shares | shares 229
Vested and expected to vest, end of year, Grant Date Fair Value | $ / shares $ 880.99