Earnings per share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of shares used in the earnings per share calculations

	For the three months ended March 31
(in millions)	2023		2022
Net income	$	800	$	590
Weighted-average basic shares outstanding	930.7		929.7
Dilutive effect of stock options	2.8		3.0
Weighted-average diluted shares outstanding	933.5		932.7
Earnings per share - basic	$	0.86	$	0.63
Earnings per share - diluted	$	0.86	$	0.63