v3.26.3
EMPLOYEE BENEFITS PLANS (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Pension Benefits        
Components of Net Periodic Benefit Plan Cost        
Service Cost $ 4 $ 4 $ 12 $ 11
Non-Service Cost        
Interest Cost 6 7 19 19
Expected Return on Plan Assets (9) (8) (26) (23)
Amortization of Net Loss 1 1 3 4
Net Periodic Benefit Cost 2 4 8 11
Other Postretirement Benefits        
Components of Net Periodic Benefit Plan Cost        
Service Cost 0 1 2 3
Non-Service Cost        
Interest Cost 1 1 2 3
Expected Return on Plan Assets (1) (1) (2) (2)
Amortization of Net Loss 0 0 (1) (1)
Net Periodic Benefit Cost $ 0 $ 1 $ 1 $ 3