v3.26.1
Employee Benefits - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Pension Benefits    
Pension Benefits    
Net Periodic Other Benefit Costs $ 70 $ 101
Pension Benefits | United States    
Pension Benefits    
Service cost 86 90
Interest cost 122 124
Expected return on plan assets (195) (174)
Amortization of prior service costs (credits) 1 1
Amortization of actuarial losses (gains) 27 30
Net Periodic Other Benefit Costs 41 71
Pension Benefits | International    
Pension Benefits    
Service cost 16 14
Interest cost 60 48
Expected return on plan assets (63) (47)
Amortization of prior service costs (credits) 3 3
Amortization of actuarial losses (gains) 13 12
Net Periodic Other Benefit Costs 29 30
Other Benefits    
Pension Benefits    
Service cost 7 7
Interest cost 24 25
Amortization of prior service costs (credits) (6) (6)
Amortization of actuarial losses (gains) (3) (4)
Net Periodic Other Benefit Costs $ 22 $ 22