Calculation Of Net Income Per Share (Tables)

3 Months Ended

Mar. 31, 2023

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares [Table Text Block]

The following table presents the computation of weighted-average shares used in the calculation of basic and diluted earnings per share:

	Three Months Ended March 31,
	2023	2022
	(In millions)
Weighted-average shares of common stock outstanding	104.9	110.2
Weighted-average potential shares of common stock outstanding:
Unvested RSUs and ESPP	0.1	0.1
Shares used to compute diluted earnings per share	105.0	110.3