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EMPLOYEE BENEFIT PLANS (Narrative) (Details)
 12 Months Ended
Dec. 31, 2024
USD ($)
noncallable_bond
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Defined Benefit Plan Disclosure [Line Items]      
Assumed health care cost trend rate 7.50%    
Ultimate trend rate 4.50%    
Assumed return 6.40%    
10 year actual rate of return 5.10%    
Number of Aa-grade non-callable bonds used to develop the yield curve for rate used (noncallable bond) | noncallable_bond 858    
Total fair value of trust other net liabilities $ 0 $ 10,000,000  
Retirement savings plan expense $ 175,000,000 $ 158,000,000 $ 144,000,000
Pension Plan      
Defined Benefit Plan Disclosure [Line Items]      
10 year actual rate of return 6.40% 6.00% 6.10%
Company contributions $ 337,000,000 $ 336,000,000  
Expected employer contribution next year 327,000,000    
Long-term Disability Trusts      
Defined Benefit Plan Disclosure [Line Items]      
Company contributions 31,000,000    
Expected employer contribution next year 31,000,000    
PBOP Plans      
Defined Benefit Plan Disclosure [Line Items]      
Company contributions $ 5,000,000 $ 5,000,000