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Summarized Financial Data - Tengizchevroil LLP (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Affiliate Statements Captions [Line Items]        
Sales and other operating revenues $ 51,922 $ 63,508 $ 147,980 $ 181,194
Net Income (Loss) $ 6,555 $ 11,238 $ 19,168 29,230
Tengizchevroil LLP        
Affiliate Statements Captions [Line Items]        
Percentage of affiliate by summarized financial information 100.00%   100.00%  
Sales and other operating revenues     $ 14,720 18,682
Costs and other deductions     7,799 9,003
Net Income (Loss)     $ 4,918 $ 6,779
Tengizchevroil LLP        
Affiliate Statements Captions [Line Items]        
Equity ownership, percentage 50.00%   50.00%