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Summarized Financial Data - Chevron U.S.A. Inc. - Summary of Income Statement Information (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Subsidiary Statements Captions [Line Items]        
Sales and other operating revenues $ 196,913 $ 235,717 $ 155,606  
Total costs and other deductions 171,365 196,578 140,826  
Net Income (Loss) Attributable to Chevron Corporation 21,369 35,465 15,625 $ (5,500)
Chevron U.S.A. Inc.        
Subsidiary Statements Captions [Line Items]        
Sales and other operating revenues 152,347 183,032 120,380  
Total costs and other deductions 144,482 166,955 114,641  
Net Income (Loss) Attributable to Chevron Corporation $ 4,598 $ 13,315 $ 6,904