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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2023
Earnings Per Share [Abstract]  
Computation of Basic and Diluted Earnings per Share
The following table reconciles the computation of basic and diluted earnings per share:
For the
Year ended December 31
millions of dollars (except per share amounts)
2023
2022
Numerator
Net income attributable to common shareholders
$
 
977.7
$
 
945.1
Diluted numerator
 
977.7
 
945.1
Denominator
Weighted average shares of common stock outstanding – basic
 
273.6
 
265.5
Stock-based compensation
 
 
0.2
 
0.4
Weighted average shares of common stock outstanding – diluted
 
273.8
 
265.9
Earnings per common share
Basic
 
$
 
3.57
$
 
3.56
Diluted
$
 
3.57
$
 
3.55