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PENSION, POSTRETIREMENT AND OTHER EMPLOYEE BENEFIT PLANS - Accumulated Benefit Obligation and Projected Benefit Obligation in Excess of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	$ 4,179	$ 4,407
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	3,617	3,767
Fair value of plan assets	$ 3,443	$ 3,435

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Amount of accumulated benefit obligation for defined benefit plan with accumulated benefit obligation in excess of plan assets.

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