Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Earnings Per Share

Basic and diluted earnings per common share were calculated as follows:

	Three Months Ended September 30				Nine Months Ended September 30
(in millions, except per share amounts)	2020		2019		2020		2019
Net earnings	$	222	$	154	$	447	$	400
Weighted-average common shares outstanding	40.6		41.2		40.6		41.4
Net dilutive effect of stock awards	0.1		—		0.1		—
Dilutive weighted-average common shares outstanding	40.7		41.2		40.7		41.4
Earnings per share - basic	$	5.47	$	3.74	$	11.01	$	9.66
Earnings per share - diluted	$	5.45	$	3.74	$	10.98	$	9.66