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Equity, Reclassification Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Other income, net |  | $ 502 | $ 179 | $ 16
Revenues | [1] | 144,766 | 176,383 | 113,977
Total before tax |  | 11,768 | 15,307 | 1,543
Tax benefit (expense) |  | (2,619) | (3,428) | (255)
Net income |  | 9,149 | 11,879 | 1,288
Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Net income |  | 17 | (325) | (90)
Net Gain (Loss) on Pension and Other Postretirement Benefits [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Total before tax |  | 32 | (91) | (63)
Tax benefit (expense) |  | (8) | 20 | 14
Net income |  | 24 | (71) | (49)
Net Actuarial Gain (Loss) [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Other income, net | [2] | 12 | (52) | (80)
Prior Service Credit [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Other income, net | [2] | 22 | 22 | 25
Settlement Loss [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Other income, net | [2] | (2) | (61) | (8)
Losses on Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Total before tax |  | (8) | (286) | (46)
Tax benefit (expense) |  | 1 | 32 | 5
Net income |  | (7) | (254) | (41)
Losses on Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Loss [Member] | Commodity Contracts [Member] |  |  |  |
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items] |  |  |  |
Revenues |  | $ (8) | $ (286) | $ (46)
[1] | Includes excise taxes on sales by certain of our foreign operations of $5,765 million, $5,194 million, and $5,645 million for the years ended December 31, 2023, 2022, and 2021.
[2] | These accumulated other comprehensive loss components are included in the computation of net periodic benefit cost, as discussed in Note 13.

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