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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Schedule of pension plans with projected benefit obligation in excess of fair value of plan assets (Details) - Pension benefits - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Accumulated benefit obligations in excess of the fair value of plan assets |  |
Projected Benefit Obligation | $ 972 | $ 6,862
Fair Value of Plan Assets | $ 197 | $ 5,641

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