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Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Affiliate Statements Captions [Line Items]    
Sales and other operating revenues $ 46,101 $ 46,580
Net Income (Loss) $ 3,512 5,551
Tengizchevroil LLP    
Affiliate Statements Captions [Line Items]    
Percentage of affiliate by summarized financial information 100.00%  
Sales and other operating revenues $ 5,247 5,056
Costs and other deductions 4,032 2,645
Net Income (Loss) $ 879 $ 1,706
Tengizchevroil LLP    
Affiliate Statements Captions [Line Items]    
Equity ownership, percentage 50.00%