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Stock Based Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2022
Share-Based Payment Arrangement, Noncash Expense [Abstract]  
Nonvested Performance Share Unit Awards and Restricted Share Unit Awards - Rollforward A rollforward of the nonvested performance share unit and restricted share unit awards follows:
Table 108: Nonvested Performance Share Unit Awards and Restricted Share Unit Awards - Rollforward
Shares in thousandsNonvested Performance Share UnitsWeighted-Average Grant Date Fair ValueNonvested Restricted Share UnitsWeighted-Average Grant Date Fair Value
December 31, 2021599 $133.59 3,582 $142.94 
Granted (a) (b)332 $173.25 1,214 $205.11 
Vested/Released (a)(246)$110.14 (1,328)$122.88 
Forfeitures (120)$172.63 
December 31, 2022685 $161.20 3,348 $172.40 
(a)Includes adjustments for achieving specific performance goals for performance share unit awards granted in prior periods.
(b)Includes 170 performance share units with market conditions.