XML 67 R54.htm IDEA: XBRL DOCUMENT v3.22.0.1
Incentive Plans (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedules of Executive Management Share-based Compensation Activity Information with respect to these plans is presented below:
Number of sharesWeighted average grant date value
per share		Year-end intrinsic value
(000's)
Shares potentially payable at January 1, 2019112,465 $49.96 $5,619 
Forfeitures— 
Payments(45,689)$36.74 
Shares accrued based on 2019 performance14,936 $92.12 
Shares potentially payable at December 31, 201981,712 $65.06 $5,316 
Forfeitures— 
Payments(20,680)$47.35 
Shares accrued based on 2020 performance36,808 $73.43 
Shares potentially payable at December 31, 202097,840 $71.95 $7,040 
Forfeitures— 
Payments(31,722)$66.25 
Shares accrued based on 2021 performance41,512 $78.06 
Shares potentially payable at December 31, 2021107,630 $75.99 $8,179 
Schedules of Other Share-based Compensation Activity The determination of compensation expense for the PSP is based on the number of outstanding share units, the end-of-period share price, and Company performance. Information with respect to the PSP is presented below:
Number of sharesWeighted average value per
share		Cash paid for share based
liabilities (000's)
Share units potentially payable at January 1, 2019227,301 
Grants58,878 
Changes due to performance21,740 
Payments(69,912)$70.67 $5,528 
Forfeitures(22,935)
Share units potentially payable at December 31, 2019215,072 
Grants63,104 
Changes due to performance27,921 
Payments(80,808)$73.04 $5,848 
Forfeitures(11,441)
Share units potentially payable at December 31, 2020213,848 
Grants56,536 
Changes due to performance52,296 
Payments(68,622)$74.22 $5,093 
Forfeitures(5,644)
Share units potentially payable at December 31, 2021248,414