Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Affiliate Statements Captions [Line Items]
Sales and other operating revenues	$ 47,216	$ 65,372	$ 96,058	$ 117,686
Net Income (Loss)	$ 6,008	$ 11,715	$ 12,613	17,992
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%		100.00%
Sales and other operating revenues			$ 10,031	12,649
Costs and other deductions			5,355	6,046
Net Income (Loss)			$ 3,314	$ 4,612
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Equity ownership, percentage	50.00%		50.00%