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FAIR VALUE MEASUREMENTS - Levels Within the Fair Value Hierarchy for Pension Plan Assets (Details) - Pension Plans, Defined Benefit - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | $ 6,435 | $ 7,260 | $ 7,158
Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 579 | 375 |
Equity Securities, US based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,051 | 1,178 |
Equity Securities, International based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 703 | 921 |
Government bonds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,009 | 1,386 |
Corporate bonds and debt securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 546 | 579 |
Mutual, pooled and commingled funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 687 | 778 |
Hedge funds/limited partnerships |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,023 | 1,057 |
Real estate |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 341 | 376 |
Derivative financial instruments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | (63) | 33 |
Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 559 | 577 |
Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 2,019 | 2,334 |
Level 1 | Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 203 | 163 |
Level 1 | Equity Securities, US based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,022 | 1,148 |
Level 1 | Equity Securities, International based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 691 | 904 |
Level 1 | Government bonds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 79 | 107 |
Level 1 | Corporate bonds and debt securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 1 | Mutual, pooled and commingled funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 24 | 12 |
Level 1 | Hedge funds/limited partnerships |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 1 | Real estate |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 1 | Derivative financial instruments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 1 | Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 2 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 2,060 | 2,348 |
Level 2 | Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 376 | 212 |
Level 2 | Equity Securities, US based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1 | 0 |
Level 2 | Equity Securities, International based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 10 | 15 |
Level 2 | Government bonds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 930 | 1,279 |
Level 2 | Corporate bonds and debt securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 529 | 552 |
Level 2 | Mutual, pooled and commingled funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 277 | 257 |
Level 2 | Hedge funds/limited partnerships |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 2 | Real estate |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 2 | Derivative financial instruments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | (63) | 33 |
Level 2 | Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 358 | 382 | $ 357
Level 3 | Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Equity Securities, US based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 28 | 30 |
Level 3 | Equity Securities, International based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 2 | 2 |
Level 3 | Government bonds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Corporate bonds and debt securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 17 | 27 |
Level 3 | Mutual, pooled and commingled funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Hedge funds/limited partnerships |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Real estate |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Derivative financial instruments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Level 3 | Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 311 | 323 |
Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,998 | 2,196 |
Other | Cash and Cash Equivalents |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Equity Securities, US based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Equity Securities, International based companies |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Government bonds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Corporate bonds and debt securities |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Mutual, pooled and commingled funds |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 386 | 509 |
Other | Hedge funds/limited partnerships |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 1,023 | 1,057 |
Other | Real estate |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 341 | 376 |
Other | Derivative financial instruments |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | 0 | 0 |
Other | Other |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Defined Benefit Plan, Plan Assets | $ 248 | $ 254 |

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