Earnings per share (Tables)

12 Months Ended

Dec. 31, 2021

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)	2021		2020		2019
Numerator:
Net income	$	8,539	$	3,533	$	4,454
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	439,968,422		451,602,820		455,910,463
Denominator for diluted earnings per share:
Share-based compensation plans	3,228,856		1,838,692		3,004,200
Weighted-average shares outstanding       and assumed conversions	443,197,278		453,441,512		458,914,663
Basic earnings per share	$	19.41	$	7.82	$	9.77
Diluted earnings per share	$	19.27	$	7.79	$	9.71
Potential anti-dilutive share conversions	1,532,066		6,811,966		2,410,337