v3.25.4
Share-Based Compensation Plans - Schedule of Performance Share Activity (Details) - Performance share units - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Performance Share Units      
Outstanding, beginning of period (in shares) 432,093    
Granted (in shares) 883,094    
Forfeited (in shares) 0    
Issued (in shares) (102,290)    
Cash settled (in shares) (883,094)    
Outstanding, end of period (in shares) 329,803 432,093  
Weighted-Average Grant-Date Fair Value      
Outstanding, beginning of period (in dollars per share) $ 37.75    
Granted (in dollars per share) 119.96 $ 130.22 $ 102.66
Forfeited (in dollars per share) 0    
Issued (in dollars per share) 36.74    
Cash settled (in dollars per share) 119.96    
Outstanding, end of period (in dollars per share) $ 38.06 $ 37.75  
Total fair value, issued $ 12 $ 14 $ 13
Fair value of cash settled units $ 106 $ 131 $ 36