Operating Segments and Geographic Data - Earnings by Major Operating Area (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	$ 11,231	$ 6,111	$ 29,112	$ 10,570
Operating Segments
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	11,837	6,445	31,181	12,817
Operating Segments | Upstream
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	9,307	5,135	24,798	10,663
Operating Segments | Upstream | United States
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	3,398	1,962	10,004	4,349
Operating Segments | Upstream | International
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	5,909	3,173	14,794	6,314
Operating Segments | Downstream
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	2,530	1,310	6,383	2,154
Operating Segments | Downstream | United States
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	1,288	1,083	4,214	1,729
Operating Segments | Downstream | International
Segment Reporting Information [Line Items]
Net Income (Loss) Attributable to Chevron Corporation	1,242	227	2,169	425
All Other
Segment Reporting Information [Line Items]
Interest expense	(117)	(160)	(363)	(517)
Interest income	77	8	116	28
Other	$ (566)	$ (182)	$ (1,822)	$ (1,758)