v3.26.3
Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Other Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost $ 0 $ 0 $ 1 $ 1
Interest cost 2 2 5 6
Expected return on plan assets
Amortization of prior service cost (credit) 0 (7) (2) (19)
Recognized net actuarial loss (gain) 0 0 0 0
Settlements 0 0 0 0
Net periodic benefit cost 2 (5) 4 (12)
U.S. | Pension Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 10 15 32 44
Interest cost 21 24 61 70
Expected return on plan assets (18) (20) (56) (58)
Amortization of prior service cost (credit) 0 0 0 0
Recognized net actuarial loss (gain) 2 3 6 8
Settlements 14 0 28 0
Net periodic benefit cost 29 22 71 64
Int'l. | Pension Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 8 7 24 23
Interest cost 34 32 103 94
Expected return on plan assets (53) (46) (159) (135)
Amortization of prior service cost (credit) 1 1 3 2
Recognized net actuarial loss (gain) 9 12 27 35
Settlements 0 0 0 1
Net periodic benefit cost $ (1) $ 6 $ (2) $ 20