Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Affiliate Statements Captions [Line Items]
Sales and other operating revenues	$ 49,574	$ 47,216	$ 96,154	$ 96,058
Net Income (Loss)	$ 4,443	$ 6,008	$ 9,994	12,613
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%		100.00%
Sales and other operating revenues			$ 10,108	10,031
Costs and other deductions			5,392	5,355
Net Income (Loss)			$ 3,339	$ 3,314
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Equity ownership, percentage	50.00%		50.00%