v3.26.1
PENSION AND OTHER POSTRETIREMENT BENEFITS - Accumulated Other Comprehensive (Income) Loss Associated With Other Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Pension ongoing income—non-service | U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Prior service (credit) cost $ 0 $ 0
Net actuarial (gain) loss 1,613 729
Net amount recognized 1,613 729
Pension ongoing income—non-service | Non-U.S. Plans    
Defined Benefit Plan Disclosure [Line Items]    
Prior service (credit) cost 35 34
Net actuarial (gain) loss 364 315
Net amount recognized 399 349
Other Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Prior service (credit) cost (7) (18)
Net actuarial (gain) loss (46) (64)
Net amount recognized $ (53) $ (82)