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PENSION AND OTHER POSTRETIREMENT BENEFITS - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Pension notional amount |  | $ 2,567 | $ 4,415 |
Non-U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Pension notional amount |  | 120 | $ 311 |
Cash pension contributions |  | $ 10 |  |
Minimum | Fixed Income Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 45.00% |  |
Minimum | Equity Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 25.00% |  |
Minimum | Real Estate |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 5.00% |  |
Minimum | Other than Securities Investment |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 10.00% |  |
Maximum | Fixed Income Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 65.00% |  |
Maximum | Equity Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 40.00% |  |
Maximum | Real Estate |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 10.00% |  |
Maximum | Other than Securities Investment |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Target allocations percentage |  | 20.00% |  |
Pension ongoing income—non-service | U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 6.40% | 6.15% | 6.15%
Accumulated benefit obligation |  | $ 13,300 | $ 17,300 |
Pension ongoing income—non-service | Non-U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Expected rate of return on plan assets |  | 3.61% | 4.03% | 4.66%
Accumulated benefit obligation |  | $ 4,400 | $ 6,900 |
Forecast | Non-U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Contributions to pension plans | $ 10 |  |  |
Forecast | Pension ongoing income—non-service | U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Discount rate, service costs | 5.26% |  |  |
Discount rate, interest costs | 5.07% |  |  |
Expected rate of return on plan assets | 6.75% |  |  |

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