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PENSION - Components of Net Periodic Pension Cost (Benefit) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Retirement Benefits [Abstract] |  |
Service cost | $ 5 | $ 4
Interest cost | 60 | 62
Expected return on plan assets | (62) | $ (79)
Defined Benefit Plan Net Periodic Benefit Cost Credit Expected Return Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag |  | Expected return on plan assets
Amortization of net loss | $ 22 | $ 4
Defined Benefit Plan Net Periodic Benefit Cost Credit Amortization Of Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag | Amortization of net loss |
Cost of Settlement | $ 0 | 1
Net periodic pension cost (benefit) | $ 25 | $ (8)

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