Summarized Financial Data - Chevron U.S.A. Inc. - Income Statement (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues	$ 49,574	$ 47,216	$ 96,154	$ 96,058
Costs and other deductions	44,145	41,059	84,939	82,333
Net income attributable to equity method investee	$ 4,434	$ 6,010	9,935	12,584
Chevron U.S.A. Inc.
Subsidiary Statements Captions [Line Items]
Sales and other operating revenues			75,590	73,787
Costs and other deductions			72,170	68,982
Net income attributable to equity method investee			$ 3,057	$ 3,978