Net Income Per Share (Tables)

12 Months Ended

Jan. 31, 2022

Earnings Per Share [Abstract]

Schedule of Calculation of Numerator and Denominator in Net Loss Per Share

The following table sets forth the computation of the numerators and denominators used in the basic and diluted net income per share amounts:

	Fiscal Year Ended January 31,
	2022		2021		2020
Numerator:
Net income	$	497.0	$	1,208.2	$	214.5
Denominator:
Weighted average shares for basic net income per share	219.7		219.4		219.7
Effect of dilutive securities	2.3		2.7		2.8
Weighted average shares for dilutive net income per share	222.0		222.1		222.5
Basic net income per share	$	2.26	$	5.51	$	0.98
Diluted net income per share	$	2.24	$	5.44	$	0.96