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Other Financial Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | $ 785,000,000 | $ 765,000,000 | $ 1,500,000,000
Loss on extinguishment of debt | 260,000,000 |  |
Goodwill | 4,385,000,000 | 4,402,000,000 |
Total financing interest and debt costs | 775,000,000 | 735,000,000 | 817,000,000
Less: Capitalized interest | 63,000,000 | 38,000,000 | 19,000,000
Interest and debt expense | 712,000,000 | 697,000,000 | 798,000,000
Research and development expenses | 268,000,000 | 435,000,000 | 500,000,000
Excess of replacement cost over the carrying value of inventories (LIFO method) | 5,588,000,000 | 2,749,000,000 | 4,513,000,000
LIFO profits (losses) on inventory drawdowns included in earnings | 35,000,000 | (147,000,000) | (9,000,000)
Foreign currency effects | 306,000,000 | (645,000,000) | (304,000,000)
Company share of equity affiliates foreign currency effects | 180,000,000 | (152,000,000) | (28,000,000)
Downstream |  |  |
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | 30,000,000 | 30,000,000 | 50,000,000
Loss on extinguishment of debt | 110,000,000 |  |
Upstream |  |  |
Business Acquisition [Line Items] |  |  |
Gains on sale of nonstrategic properties | 755,000,000 | 735,000,000 | 1,450,000,000
Gain (loss) for impairments and other assets write-offs | 519,000,000 | $ 4,800,000,000 | $ 10,400,000,000
Loss on extinguishment of debt | 120,000,000 |  |
Unocal | Upstream |  |  |
Business Acquisition [Line Items] |  |  |
Goodwill | 4,385,000,000 |  |
Goodwill impairment loss | $ 0 |  |

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