v3.25.4
Post-Employment Benefits - Pretax Gains and Losses Included in Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined benefit plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Actuarial loss (gain) $ (478) $ (935) $ (16)
Amortization of prior service credit (cost) 0 0 (1)
Amortization of actuarial loss (31) (52) (16)
Foreign exchange gain and other (24) 0 (44)
Total loss (gain) (533) (987) (77)
Other post-employment plans      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Actuarial loss (gain) (12) (62) 89
Amortization of prior service credit (cost) 36 36 36
Amortization of actuarial loss (10) (17) (12)
Total loss (gain) $ 14 $ (43) $ 113