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Summarized Financial Data - Chevron U.S.A. Inc. (Details 1) - USD ($) $ in Millions | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017 | Dec. 31, 2016
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Balance Sheet - Chevron U.S.A. Inc. |  |  |  |
Current assets | $ 31,726 | $ 28,560 |  |
Current liabilities | 30,630 | 27,737 |  |
Total CUSA net equity | 151,566 | 149,319 | $ 147,790 | $ 146,722
Chevron U.S.A. Inc. |  |  |  |
Balance Sheet - Chevron U.S.A. Inc. |  |  |  |
Current assets | 13,406 | 12,163 |  |
Other assets | 55,482 | 54,994 |  |
Current liabilities | 17,606 | 17,379 |  |
Other liabilities | 12,623 | 12,541 |  |
Total CUSA net equity | 38,659 | 37,237 |  |
Memo: Total debt | $ 3,050 | $ 3,056 |  |

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