v3.25.4
Retirement Benefits (Components of the Net Periodic Benefit Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension  Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 28 $ 23 $ 23
Interest cost 592 579 599
Expected return on plan assets (842) (876) (860)
Amortization of prior service 1 1 0
Recognized actuarial loss (gain) 42 31 22
Net periodic benefit (credit) cost (179) (242) (216)
Settlement loss 11 2 2
Net benefit (credit) cost (168) (240) (214)
Pension  Benefits | U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 1 0 0
Interest cost 253 250 260
Expected return on plan assets (293) (303) (311)
Recognized actuarial loss (gain) 24 21 19
Net periodic benefit (credit) cost (15) (32) (32)
Settlement loss 1 0 0
Net benefit (credit) cost (14) (32) (32)
Pension  Benefits | Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 27 23 23
Interest cost 339 329 339
Expected return on plan assets (549) (573) (549)
Amortization of prior service 1 1 0
Recognized actuarial loss (gain) 18 10 3
Net periodic benefit (credit) cost (164) (210) (184)
Settlement loss 10 2 2
Net benefit (credit) cost (154) (208) (182)
Post-retirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 3 3 3
Expected return on plan assets 0 0 0
Amortization of prior service 0 (2) (2)
Recognized actuarial loss (gain) (1) (6) (3)
Net periodic benefit (credit) cost 2 (5) (2)
Settlement loss 0 0 0
Net benefit (credit) cost 2 (5) (2)
Post-retirement Benefits | U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 1 1 1
Expected return on plan assets 0 0 0
Recognized actuarial loss (gain) 0 (1) (2)
Net periodic benefit (credit) cost 1 0 (1)
Settlement loss 0 0 0
Net benefit (credit) cost 1 0 (1)
Post-retirement Benefits | Non-U.S.      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 0 0 0
Interest cost 2 2 2
Expected return on plan assets 0 0 0
Amortization of prior service 0 (2) (2)
Recognized actuarial loss (gain) (1) (5) (1)
Net periodic benefit (credit) cost 1 (5) (1)
Settlement loss 0 0 0
Net benefit (credit) cost $ 1 $ (5) $ (1)