Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2023

Earnings Per Share [Abstract]

Schedule of Computation of Earnings Per Share and Effect on Weighted-Average Number of Shares

The following table shows the computation of basic and diluted earnings per share:

	Second Quarter of				First Two Quarters of
	2023		2022		2023		2022
(In millions, except per share amounts)
Numerator:
Net income	$	44.6	$	168.0	$	173.4	$	278.3
Denominator:
Weighted-average number of common shares used in basic earnings per share	248.1		249.2		247.7		250.0
Effect of dilutive securities	0.9		1.5		1.2		1.7
Weighted-average number of common shares and dilutive potential common shares used in diluted earnings per share	249.0		250.7		248.9		251.7
Basic earnings per share	$	0.18	$	0.67	$	0.70	$	1.11
Diluted earnings per share	$	0.18	$	0.67	$	0.70	$	1.11
Antidilutive weighted-average shares (1)	3.8		2.1		1.9		1.5

(1)    Antidilutive stock-based awards are excluded from the calculation of diluted shares and diluted earnings per share because their impact would increase diluted earnings per share.