v3.25.4
Common Stock and Stock Plans, Performance Share Awards (Details) - Performance share awards [Member] - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Summary of Performance Awards [Abstract]      
Nonvested at January 1, 2025 (in shares) 3,439,368    
Granted (in shares) 1,164,554    
Vested (in shares) (1,653,573)    
Nonvested at December 31, 2025 (in shares) 2,950,349 3,439,368  
Weighted-  average  grant-date  fair value       
Nonvested at January 1, 2025 (in dollars per share) $ 33.37    
Granted (in dollars per share) 70.94 $ 44.57 $ 44.33
Vested (in dollars per share) 52.85    
Nonvested at December 31, 2025 (in dollars per share) $ 55.92 $ 33.37  
Cost amount to holders of incentive compensation share plans $ 0    
Award vesting period 3 years    
Future vesting amount, minimum (percent) 0.00%    
Future vesting amount, maximum (percent) 150.00%    
Unrecognized compensation cost related to nonvested performance awards $ 24    
Expected weighted-average period to recognize compensation costs related to awards 1 year 9 months 18 days    
Fair value of awards vested $ 121 $ 134 $ 31