Net Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2022

Earnings Per Share [Abstract]

Calculation of Basic and Diluted Net Earnings Per Common Share

The following table shows the calculation of basic and diluted net earnings per common share:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions, except per share amounts)	2022		2021		2022		2021
Basic Net Earnings Per Common Share:
Numerator:
Net earnings	$	134.2	$	107.7	$	397.3	$	325.9
Distributed and allocated undistributed net earnings to unvested restricted stockholders	—		—		—		—
Net earnings available to common stockholders	$	134.2	$	107.7	$	397.3	$	325.9
Denominator:
Weighted average number of common shares outstanding - basic	145.2		149.9		146.3		151.8
Basic net earnings per common share:
Basic net earnings per common share	$	0.92	$	0.72	$	2.72	$	2.15
Diluted Net Earnings Per Common Share:
Numerator:
Net earnings available to common stockholders	$	134.2	$	107.7	$	397.3	$	325.9
Denominator:
Weighted average number of common shares outstanding - basic	145.2		149.9		146.3		151.8
Effect of dilutive stock shares and units	1.4		1.5		1.5		1.4
Weighted average number of common shares outstanding - diluted under treasury stock	146.6		151.4		147.8		153.2
Diluted net earnings per common share	$	0.92	$	0.71	$	2.69	$	2.13