v3.26.1
Employee Benefit Plans - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Other Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost $ 1 $ 1 $ 1 $ 1
Interest cost 2 2 3 4
Expected return on plan assets
Amortization of prior service cost (credit) (1) (6) (2) (12)
Recognized net actuarial loss (gain) 0 0 0 0
Settlements 0 0 0 0
Net periodic benefit cost 2 (3) 2 (7)
U.S. | Pension Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 11 14 22 29
Interest cost 19 23 40 46
Expected return on plan assets (18) (19) (38) (38)
Amortization of prior service cost (credit) 0 0 0 0
Recognized net actuarial loss (gain) 2 2 4 5
Settlements 5 0 14 0
Net periodic benefit cost 19 20 42 42
Int'l. | Pension Benefits        
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]        
Service cost 8 8 16 16
Interest cost 35 31 69 62
Expected return on plan assets (53) (44) (106) (89)
Amortization of prior service cost (credit) 2 1 2 1
Recognized net actuarial loss (gain) 9 12 18 23
Settlements 0 0 0 1
Net periodic benefit cost $ 1 $ 8 $ (1) $ 14