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Summarized Financial Data - Chevron U.S.A. Inc. - Balance Sheet (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | ---
Subsidiary Statements Captions [Line Items] |  |  |  |
Current assets | $ 28,562 | $ 28,329 |  |
Current liabilities | 28,235 | 26,530 |  |
Total CUSA net equity | 144,914 | 145,208 | $ 156,118 | $ 155,642
Chevron U.S.A. Inc. |  |  |  |
Subsidiary Statements Captions [Line Items] |  |  |  |
Current assets | 10,773 | 13,059 |  |
Other assets | 51,449 | 50,796 |  |
Current liabilities | 16,143 | 18,291 |  |
Other liabilities | 12,630 | 12,565 |  |
Total CUSA net equity | 33,449 | 32,999 |  |
Memo: Total debt | $ 3,219 | $ 3,222 |  |

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