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Summarized Financial Data - Tengizchevroil LLP - Schedule of Income Statement Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%
Sales and other operating revenues	$ 193,414	$ 196,913	$ 235,717
Net income attributable to TCO	$ 17,749	21,411	35,608
Tengizchevroil
Affiliate Statements Captions [Line Items]
Percentage of affiliate by summarized financial information	100.00%
Sales and other operating revenues	$ 18,872	19,758	23,975
Costs and other deductions	10,616	10,193	11,956
Net income attributable to TCO	$ 5,779	$ 6,569	$ 8,566
Tengizchevroil
Affiliate Statements Captions [Line Items]
Equity method investment, ownership percentage	50.00%

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