Note 6 - Earnings Per Share

3 Months Ended

Mar. 31, 2023

Notes to Financial Statements

Earnings Per Share [Text Block]

6. Earnings Per Share

The following table provides a reconciliation between basic and diluted earnings per share:

Millions, Except Per Share Amounts, for the Three Months Ended March 31,	2023		2022
Net income	$	1,630	$	1,630
Weighted-average number of shares outstanding:
Basic		610.6		632.2
Dilutive effect of stock options		0.4		0.7
Dilutive effect of retention shares and units		0.5		0.7
Diluted		611.5		633.6
Earnings per share – basic	$	2.67	$	2.58
Earnings per share – diluted	$	2.67	$	2.57
Stock options excluded as their inclusion would be anti-dilutive		0.8		0.1