v3.25.2
Net Income Per Share - Computation of Basic and Diluted Net Income Per Share (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Numerator:            
Net income $ 62 $ 52 $ 23 $ 15 $ 114 $ 37
Denominator:            
Shares used in net income per common share - basic 67.2   67.3   67.3 67.2
Effect of dilutive securities 0.2   0.2   0.2 0.3
Shares used in net income per common share - diluted 67.4   67.5   67.5 67.5
Net income per common share:            
Basic $ 0.92   $ 0.34   $ 1.69 $ 0.56
Net income per common share:            
Diluted $ 0.92   $ 0.33   $ 1.69 $ 0.55