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Operating Segments and Geographic Data - Segment Earnings (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation $ 21,369 $ 35,465 $ 15,625 $ (5,500)
Operating Segments        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 23,575 38,439 18,732  
Operating Segments | Upstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 17,438 30,284 15,818  
Operating Segments | Downstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 6,137 8,155 2,914  
Segment Reconciling Items        
Segment Reporting Information [Line Items]        
Interest expense (432) (476) (662)  
Interest income 491 261 36  
Other (2,265) (2,759) (2,481)  
United States | Operating Segments | Upstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 4,148 12,621 7,319  
United States | Operating Segments | Downstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 3,904 5,394 2,389  
International | Operating Segments | Upstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation 13,290 17,663 8,499  
International | Operating Segments | Downstream        
Segment Reporting Information [Line Items]        
Net Income (Loss) Attributable to Chevron Corporation $ 2,233 $ 2,761 $ 525