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Net Income Per Share (Tables)
3 Months Ended
Mar. 31, 2025
Earnings Per Share [Abstract]  
Schedule of Denominators for The Computation of Basic and Diluted Earnings Per Share
The following table sets forth the calculation of basic and diluted net income per share:
Three Months Ended March 31,
 20252024
 (In millions, except net income per share)
Numerator:
Net income$298 $301 
Denominator:
Shares outstanding at the beginning of the period55.0 57.8 
Weighted-average number of shares issued:
Stock-based compensation0.1 0.1 
Stock purchases(0.5)— 
Denominator for basic net income per share54.6 57.9 
Effect of dilutive securities: (1)
Stock-based compensation0.2 0.4 
Denominator for diluted net income per share54.8 58.3 
Net income per share - Basic (2)
$5.47 $5.21 
Net income per share - Diluted (2)
$5.45 $5.17 
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(1)    The dilutive effect of all potentially dilutive common shares is calculated using the treasury stock method. Certain potentially dilutive common shares issuable are not included in the computation of diluted net income per share because to do so would be anti-dilutive.
(2)    Source data for calculations in thousands.