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Net Income Per Share (Tables)
 12 Months Ended
Dec. 31, 2024
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:
Year Ended December 31,
202420232022
(In millions, except net income per share)
Numerator:
Net income$1,179 $1,091 $792 
Denominator:
Shares outstanding at the beginning of the period57.8 57.4 57.9 
Weighted-average number of shares issued:
Stock purchases(0.6)— (0.5)
Stock-based compensation0.2 0.3 0.4 
Denominator for basic net income per share57.4 57.7 57.8 
Effect of dilutive securities: (1)
Stock-based compensation0.3 0.4 0.7 
Denominator for diluted net income per share57.7 58.1 58.5 
Net income per share - Basic (2)
$20.52 $18.91 $13.72 
Net income per share - Diluted (2)
$20.42 $18.77 $13.55 
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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 have been anti-dilutive. For the year ended December 31, 2024,108,000 shares were excluded from diluted shares outstanding.
(2)    Source data for calculations in thousands.