v3.25.4
Employee Benefit Plans - Rollforward of the Benefit Obligation and Fair Value of Plan Assets (Details) - U.S. - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Projected benefit obligation      
Benefit obligation at beginning of year $ 2,764 $ 2,975  
Service cost 23 20 $ 20
Interest cost 145 137 140
Actuarial loss (gain) 23 (201)  
Plan amendments 0 1  
Plan settlements (8) (1)  
Benefits paid (152) (149)  
Other 25 (18)  
Projected benefit obligation at end of year 2,820 2,764 2,975
Fair value of plan assets      
Balance at beginning of period 2,186 2,422  
Actual return on plan assets 125 (114)  
Employer contributions 183 38  
Benefits paid (152) (149)  
Plan settlements (8) (1)  
Other 27 (10)  
Balance at end of period 2,361 2,186 $ 2,422
Funded (unfunded) status (459) (578)  
Amounts recognized in the balance sheet      
Assets 102 71  
Liabilities (561) (649)  
Net amount recognized $ (459) $ (578)