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OTHER COMPREHENSIVE INCOME - Adjustment Reclassified to Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income, before tax | $ 223 | $ 200 | $ 257
Reclassification adjustments recognized in the period, tax | 0 | 0 | 0
Reclassification adjustments recognized in net income | 223 | 200 | 257
Reclassification adjustments recognized in net income, before tax | (10) | (161) | 124
Derivatives reclassification adjustments recognized in net income, tax | 3 | 40 | (29)
Reclassification adjustments recognized in net income | (7) | (121) | 95
Reclassification adjustments recognized in net income, before tax | 7 | 131 | 4
Reclassification adjustments recognized in net income, tax | (1) | (29) | (1)
Reclassification adjustments recognized in net income | 6 | 102 | 3
Reclassification adjustments recognized in net income | 157 | 104 | 265
Reclassification adjustments recognized in net income, tax | (32) | (26) | (66)
Reclassification adjustments recognized in net income | 125 | $ 78 | $ 199
Other income (loss) — net |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income, before tax | 223 |  |
Reclassification adjustments recognized in net income, before tax | (17) |  |
Reclassification adjustments recognized in net income, before tax | 7 |  |
Recognized net actuarial loss (gain) | 91 |  |
Recognized prior service cost (credit) | (2) |  |
Other income (loss) — net | Settlement charges (credits) |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income | 67 |  |
Other income (loss) — net | Divestitures, deconsolidations and other |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income | 1 |  |
Net operating revenues |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income, before tax | 3 |  |
Interest expense |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |
Reclassification adjustments recognized in net income, before tax | $ 4 |  |

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