Earnings per share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Schedule Of Earnings Per Share, Basic And Diluted

	Three Months Ended				Nine Months Ended
	September 30				September 30
(in millions of U.S. dollars, except share and per share data)	2019		2018		2019		2018
Numerator:
Net income	$	1,091	$	1,231	$	3,281	$	3,607
Denominator:
Denominator for basic earnings per share:
Weighted-average shares outstanding	454,975,143		462,981,973		456,987,560		464,644,013
Denominator for diluted earnings per share:
Share-based compensation plans	3,175,226		3,034,525		2,937,026		3,360,511
Weighted-average shares outstanding and assumed conversions	458,150,369		466,016,498		459,924,586		468,004,524
Basic earnings per share	$	2.40	$	2.66	$	7.18	$	7.76
Diluted earnings per share	$	2.38	$	2.64	$	7.13	$	7.71
Potential anti-dilutive share conversions	575,039		3,763,844		3,874,310		3,467,000