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STOCK INCENTIVE PLANS (Tables)
12 Months Ended
Dec. 31, 2022
STOCK INCENTIVE PLANS [Abstract]  
Activity for restricted stock units
The following table summarizes RSU activity (in millions of dollars, except for share and per share amounts):
202220212020
SharesWeighted
Average Price Per Share
SharesWeighted
Average Price Per Share
SharesWeighted
Average Price Per Share
Beginning nonvested units202,321 $318.40 317,414 $259.67 326,124 $259.88 
    Issued96,940 $520.67 105,866 $406.17 140,815 $252.11 
    Canceled(17,038)$345.30 (36,134)$274.74 (26,254)$257.56 
    Vested(91,191)$336.99 (184,825)$276.34 (123,271)$252.05 
Ending nonvested units191,032 $409.77 202,321 $318.40 317,414 $259.67 
Fair value of shares vested
$31 $51 $31