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PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS - Net Periodic Benefit Cost - Continuing Operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Net periodic benefit cost |  |  |
Defined Benefit Plan Net Periodic Benefit Cost Credit Settlement Gain Loss Statement Of Income Or Comprehensive Income Extensible List Not Disclosed Flag | Settlement charges | Settlement charges | Settlement charges
Settlement charges | $ 0 | $ (1) | $ 0
Pension benefits |  |  |
Net periodic benefit cost |  |  |
Service cost | 11 | 19 | 71
Interest cost | 136 | 148 | 94
Expected return on plan assets | (179) | (187) | (156)
Amortization of net losses and other deferred amounts | 15 | 6 | 41
Curtailment gain | 0 | 0 | (12)
Other | 0 | 1 | 1
Net periodic benefit cost | (17) | (12) | 39
OPEB |  |  |
Net periodic benefit cost |  |  |
Service cost | 0 | 0 | 1
Interest cost | 8 | 8 | 4
Curtailment gain | 0 | (1) | 0
Amortization of net losses and prior service credit | (19) | (24) | (14)
Net periodic benefit cost | $ (11) | $ (17) | $ (9)

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