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Summarized Financial Data - Chevron U.S.A. Inc. - Income Statement (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Subsidiary Statements Captions [Line Items]        
Sales and other operating revenues $ 51,922 $ 63,508 $ 147,980 $ 181,194
Costs and other deductions 45,342 51,835 127,675 149,913
Net income attributable to equity method investee $ 6,526 $ 11,231 19,110 29,112
Chevron U.S.A. Inc.        
Subsidiary Statements Captions [Line Items]        
Sales and other operating revenues     113,817 142,407
Costs and other deductions     106,318 129,704
Net income attributable to equity method investee     $ 6,152 $ 10,601