Operating Segments and Geographic Data - Earnings by Major Operating Area (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	$ 6,010	$ 11,622	$ 12,584	$ 17,881
Operating Segments
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	6,443	12,081	13,404	19,346
Operating Segments | Upstream
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	4,936	8,558	10,097	15,492
Operating Segments | Upstream | United States
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	1,640	3,367	3,421	6,605
Operating Segments | Upstream | International
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	3,296	5,191	6,676	8,887
Operating Segments | Downstream
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	1,507	3,523	3,307	3,854
Operating Segments | Downstream | United States
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	1,081	2,440	2,058	2,926
Operating Segments | Downstream | International
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	426	1,083	1,249	928
All Other
Segment Reporting Information [Line Items]
Interest expense	(111)	(120)	(217)	(246)
Interest income	146	29	298	39
Other	$ (468)	$ (368)	$ (901)	$ (1,258)