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EMPLOYEE BENEFIT PLANS (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Pension Benefits        
Defined Benefit Plan Disclosure        
Service cost $ 26 $ 25 $ 29 $ 28
Interest cost 208 201 416 402
Expected return on plan assets (267) (263) (534) (526)
Amortization of prior service credit 0 0 0 0
Recognized net actuarial loss 50 62 101 124
Net periodic cost 17 25 12 28
Other Postretirement and Postemployment Benefits        
Defined Benefit Plan Disclosure        
Service cost 33 23 66 46
Interest cost 45 45 90 91
Expected return on plan assets 0 (1) (1) (1)
Amortization of prior service credit (1) (1) (2) (2)
Recognized net actuarial loss 5 5 10 9
Net periodic cost $ 82 $ 71 $ 163 $ 143