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PENSION AND OTHER POST-EMPLOYMENT BENEFIT OBLIGATIONS - Schedule of amounts recognized in Balance Sheet (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation $ 917 $ 994 $ 922
Fair value of plan assets (520) (539) (492)
Net liability arising from defined benefit obligation 397 455 430
Net liability arising from defined benefit obligation, non-current 375 431  
Net liability arising from defined benefit obligation, current 22 24  
Funded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 664 720  
Fair value of plan assets (520) (539)  
Deficit of funded plans 144 181  
Unfunded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 253 274  
Pension      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 773 835 758
Fair value of plan assets (520) (539)  
Net liability arising from defined benefit obligation 253 296  
Net liability arising from defined benefit obligation, non-current 245 288  
Net liability arising from defined benefit obligation, current 8 8  
Pension | Funded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 664 720  
Fair value of plan assets (520) (539)  
Deficit of funded plans 144 181  
Pension | Unfunded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 109 115  
OPEB and Other Benefits      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 144 159 $ 164
Net liability arising from defined benefit obligation 144 159  
Net liability arising from defined benefit obligation, non-current 130 143  
Net liability arising from defined benefit obligation, current 14 16  
OPEB and Other Benefits | Funded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation 0 0  
Fair value of plan assets 0 0  
Deficit of funded plans 0 0  
OPEB and Other Benefits | Unfunded plan      
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Present value of obligation $ 144 $ 159