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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) | 12 Months Ended
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Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of components of accumulated other comprehensive loss |
Components of accumulated other comprehensive loss |  |  |  |  |
(in millions) | Pension and Other Benefits Liabilities(2) | Other |  | Tax Effect | Total
Balance at January 1, 2020 | $ | (9,563) |  | $ | 25 |  |  | $ | 1,549 |  | $ | (7,989) |
Changes in value | (1,652) |  | 16 |  |  | 384 |  | (1,252) |
Reclassifications into earnings(1) | 372 |  | — |  |  | (169) |  | 203 |
Balance at December 31, 2020 | (10,843) |  | 41 |  |  | 1,764 |  | (9,038) |
Changes in value | 2,077 |  | — |  |  | (484) |  | 1,593 |
Reclassifications into earnings(1) | 411 |  | — |  |  | (96) |  | 315 |
Balance at December 31, 2021 | (8,355) |  | 41 |  |  | 1,184 |  | (7,130) |
Changes in value | 1,419 |  | — |  |  | (330) |  | 1,089 |
Reclassifications into earnings(1) | 312 |  | — |  |  | (72) |  | 240 |
Balance at December 31, 2022 | $ | (6,624) |  | $ | 41 |  |  | $ | 782 |  | $ | (5,801) |
(1)Amounts reclassified from AOCI for pension and other benefits liabilities are recorded in pension and related benefit in non-operating expense in the income statement. (2)Includes approximately $755 million of deferred income tax expense as a result of tax law changes and prior valuation allowance releases through continuing operations, that will not be recognized in net income until pension and other benefit obligations are fully extinguished.

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