v3.26.3
Net Income Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Jun. 30, 2026
Mar. 31, 2026
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Numerator:                    
Net income $ 38 $ 60 $ 14 $ 79 $ 255 $ 298 $ 112 $ 632    
Denominator:                    
Shares outstanding at the beginning of the period (in shares)   51,200     53,600       50,900 55,000
Weighted-average number of shares issued:                    
Stock-based compensation (in shares) 0     0     200 200    
Stock purchases (in shares) 0     (1,100)     0 (1,700)    
Denominator for basic net income per share (in shares) 51,200     52,500     51,100 53,500    
Effect of dilutive securities:                    
Stock-based compensation (in shares) 300     0     200 100    
Denominator for diluted net income per share (in shares) 51,500     52,500     51,300 53,600    
Net income per share:                    
Net income per share - basic (in dollars per share) $ 0.74     $ 1.51     $ 2.20 $ 11.81    
Net income per share - diluted (in dollars per share) $ 0.73     $ 1.51     $ 2.19 $ 11.79    
Potentially dilutive common shares (in shares) 280     532     226 265