Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Affiliate Statements Captions [Line Items]
Sales and other operating revenues	$ 48,926	$ 51,922	$ 145,080	$ 147,980
Net Income (Loss)	$ 4,496	$ 6,555	$ 14,490	19,168
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%		100.00%
Sales and other operating revenues			$ 14,857	14,720
Costs and other deductions			8,200	7,799
Net Income (Loss)			$ 4,727	$ 4,918
Tengizchevroil LLP
Affiliate Statements Captions [Line Items]
Equity ownership, percentage	50.00%		50.00%