Earnings per share (Tables)

3 Months Ended

Mar. 31, 2021

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Three Months Ended
	March 31
(in millions of U.S. dollars, except share and per share data)	2021		2020
Numerator:
Net income	$	2,300	$	252
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	450,539,568		451,868,658
Denominator for diluted earnings per share:
Share-based compensation plans	2,795,971		2,651,610
Weighted-average shares outstanding and assumed conversions	453,335,539		454,520,268
Basic earnings per share	$	5.10	$	0.56
Diluted earnings per share	$	5.07	$	0.55
Potential anti-dilutive share conversions	1,952,612		3,154,406