FAIR VALUE MEASUREMENTS - Levels Within the Fair Value Hierarchy for Pension Plan Assets (Details) - Pension Plans, Defined Benefit - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | $ 7,158 | $ 8,905 | $ 8,639 |
Cash and cash equivalents | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 635 | 505 | |
Equity Securities, US based companies | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 1,188 | 2,431 | |
Equity Securities, International based companies | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 939 | 1,706 | |
Government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 1,238 | 677 | |
Corporate bonds and debt securities | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 499 | 1,023 | |
Mutual, pooled and commingled funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 767 | 850 | |
Hedge funds/limited partnerships | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 936 | 720 | |
Real estate | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 424 | 389 | |
Derivative financial instruments | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | (14) | (9) | |
Other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 546 | 613 | |
Level 1 | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 2,349 | 4,581 | |
Level 1 | Cash and cash equivalents | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 146 | 479 | |
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 | 1,157 | 2,382 | |
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 | 920 | 1,684 | |
Level 1 | Government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 91 | 0 | |
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 | 35 | 36 | |
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 | 2,316 | 2,015 | |
Level 2 | Cash and cash equivalents | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 489 | 26 | |
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 | 7 | 22 | |
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 | 16 | 22 | |
Level 2 | Government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 1,147 | 677 | |
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 | 469 | 994 | |
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 | 202 | 283 | |
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 | (14) | (9) | |
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 | 357 | 339 | $ 337 |
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 | 24 | 27 | |
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 | 3 | 0 | |
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 | 30 | 29 | |
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 | 300 | 283 | |
Fair Value Measured at Net Asset Value Per Share | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 2,136 | 1,970 | |
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | 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 | |
Fair Value Measured at Net Asset Value Per Share | 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 | |
Fair Value Measured at Net Asset Value Per Share | Government bonds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | 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 | |
Fair Value Measured at Net Asset Value Per Share | Mutual, pooled and commingled funds | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 530 | 531 | |
Fair Value Measured at Net Asset Value Per Share | Hedge funds/limited partnerships | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 936 | 720 | |
Fair Value Measured at Net Asset Value Per Share | Real estate | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 424 | 389 | |
Fair Value Measured at Net Asset Value Per Share | Derivative financial instruments | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | 0 | 0 | |
Fair Value Measured at Net Asset Value Per Share | Other | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | |
Defined Benefit Plan, Plan Assets | $ 246 | $ 330 | |