v3.25.4
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Schedule of Changes in Benefit Obligation (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2024
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other Postretirement Benefits        
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]        
Benefit obligation, beginning of year   $ 110 $ 123  
Service cost   0 0 $ 0
Interest cost   7 7  
Plan participants' contributions   0 0  
Actuarial (gain) loss   (6) (7)  
Benefits paid   (9) (9)  
Plan amendments   0 0  
Acquisitions/divestitures/transfers   0 0  
Other adjustments   0 0  
Transfer of benefits   0 0  
Settlements / curtailment (gain)   0 0  
Foreign currency exchange rates   2 (4)  
Benefit obligation, end of year $ 110 104 110 123
United States Pension Benefits | Pension Benefits        
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]        
Benefit obligation, beginning of year   1,845 2,098  
Service cost   2 2 2
Interest cost   97 102  
Plan participants' contributions   0 0  
Actuarial (gain) loss   4 (90)  
Benefits paid   (184) (196)  
Plan amendments   0 0  
Acquisitions/divestitures/transfers   0 0  
Other adjustments   0 0  
Transfer of benefits (71) 0 (71)  
Settlements / curtailment (gain)   0 0  
Foreign currency exchange rates   0 0  
Benefit obligation, end of year 1,845 1,764 1,845 2,098
Accumulated benefit obligation, end of year 1,835 1,752 1,835  
Foreign Pension Benefits | Pension Benefits        
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]        
Benefit obligation, beginning of year   59 65  
Service cost   2 2 3
Interest cost   4 4  
Plan participants' contributions   0 0  
Actuarial (gain) loss   7 2  
Benefits paid   (4) (3)  
Plan amendments   0 0  
Acquisitions/divestitures/transfers   (11) 0  
Other adjustments   0 0  
Transfer of benefits   0 0  
Settlements / curtailment (gain)   (5) (3)  
Foreign currency exchange rates   6 (8)  
Benefit obligation, end of year 59 58 59 $ 65
Accumulated benefit obligation, end of year $ 53 $ 54 $ 53