v3.25.4
PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Schedule of Components of Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other Postretirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost $ 0 $ 0 $ 0
Interest cost 7 7 7
Expected return on plan assets 0 0 0
Amortization:      
Actuarial loss (2) (1) (1)
Prior service cost (credit) (1) (1) (41)
Curtailment (gain) / loss 0 0 0
Settlement loss 0 0 0
Net periodic benefit cost (income) 4 5 (35)
United States Pension Benefits | Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 2 2 2
Interest cost 97 102 115
Expected return on plan assets (119) (146) (140)
Amortization:      
Actuarial loss 40 39 37
Prior service cost (credit) 0 0 0
Curtailment (gain) / loss 0 0 0
Settlement loss 0 0 0
Net periodic benefit cost (income) 20 (3) 14
Foreign Pension Benefits | Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Service cost 2 2 3
Interest cost 4 10 26
Expected return on plan assets (2) (7) (22)
Amortization:      
Actuarial loss 1 1 5
Prior service cost (credit) 0 0 0
Curtailment (gain) / loss 0 0 0
Settlement loss (2) 1 1
Net periodic benefit cost (income) $ 3 $ 7 $ 13