Summarized Financial Data - Chevron U.S.A. Inc. - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues	$ 63,508	$ 42,552	$ 181,194	$ 109,745
Costs and other deductions	51,835	36,655	149,913	99,682
Net income attributable to equity method investee	$ 11,231	$ 6,111	29,112	10,570
Chevron U.S.A. Inc.
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues			142,407	85,002
Costs and other deductions			129,704	81,553
Net income attributable to equity method investee			$ 10,601	$ 4,184