Earnings per share (Tables)

12 Months Ended

Dec. 31, 2022

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Year Ended December 31
(in millions of U.S. dollars, except share and per share data)	2022		2021		2020
Numerator:
Net income	$	5,313	$	8,539	$	3,533
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	419,779,847		439,968,422		451,602,820
Denominator for diluted earnings per share:
Share-based compensation plans	3,747,597		3,228,856		1,838,692
Weighted-average shares outstanding       and assumed conversions	423,527,444		443,197,278		453,441,512
Basic earnings per share	$	12.66	$	19.41	$	7.82
Diluted earnings per share	$	12.55	$	19.27	$	7.79
Potential anti-dilutive share conversions	1,467,840		1,532,066		6,811,966