v3.25.4
Employee Retirement Plans - Schedule of Net Periodic Benefit Expense (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Plan | Domestic pension benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 77 $ 79 $ 80
Interest cost 172 165 168
Expected return on plan assets (184) (179) (176)
Amortization of prior service cost (credit) 4 6 6
Amortization of actuarial gain
Recognition of actuarial (gain) loss (31) (16)
Total net periodic benefit expense (income) 69 40 62
Curtailment charge 3
Special termination benefit charge 2 6 15
Total expense (income) 71 46 80
Curtailment effects (1) (4)
Settlements
Current year actuarial loss (gain) 55 (225) (16)
Amortization of actuarial (loss) gain
Recognition of actuarial gain 31 16
Current year prior service credit
Amortization of prior service (cost) credit (4) (6) (6)
Total recognized in other comprehensive income (loss) 51 (201) (10)
Pension Plan | International pension benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 19 20 18
Interest cost 20 20 20
Expected return on plan assets (17) (16) (13)
Amortization of prior service cost (credit)
Amortization of actuarial gain
Recognition of actuarial (gain) loss (8) 6 1
Total net periodic benefit expense (income) 14 30 26
Curtailment charge 1
Special termination benefit charge
Total expense (income) 15 30 26
Curtailment effects
Settlements (1)
Current year actuarial loss (gain) (4) 5 14
Amortization of actuarial (loss) gain (9)
Recognition of actuarial gain 7 2 1
Current year prior service credit
Amortization of prior service (cost) credit
Total recognized in other comprehensive income (loss) 2 (2) 15
Other Postretirement Benefits Plan      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 2 3 5
Interest cost 17 19 23
Expected return on plan assets
Amortization of prior service cost (credit) (7) (7) (5)
Amortization of actuarial gain (31) (24) (22)
Recognition of actuarial (gain) loss
Total net periodic benefit expense (income) (19) (9) 1
Curtailment charge
Special termination benefit charge 1
Total expense (income) (19) (9) 2
Curtailment effects
Settlements
Current year actuarial loss (gain) (19) (32) (8)
Amortization of actuarial (loss) gain 31 24 22
Recognition of actuarial gain
Current year prior service credit (26)
Amortization of prior service (cost) credit 7 7 5
Total recognized in other comprehensive income (loss) $ 19 $ (27) $ 19