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Summarized Financial Data - Tengizchevroil LLP - Summary of Income Statement Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Affiliate Statements Captions [Line Items]      
Percentage of affiliate by summarized financial information 100.00%    
Sales and other operating revenues $ 235,717 $ 155,606 $ 94,471
Net income attributable to TCO $ 35,608 15,689 (5,561)
Tengizchevroil      
Affiliate Statements Captions [Line Items]      
Percentage of affiliate by summarized financial information 100.00%    
Sales and other operating revenues $ 23,795 15,927 9,194
Costs and other deductions 11,596 8,186 6,076
Net income attributable to TCO $ 8,566 $ 5,418 $ 2,196
Tengizchevroil      
Affiliate Statements Captions [Line Items]      
Equity method investment, ownership percentage 50.00%