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Document and Entity Information (USD $)
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Document and Entity Information [Abstract]    
Entity Registrant Name CHEVRON CORP  
Entity Central Index Key 0000093410  
Document Type 10-Q  
Document Period End Date Jun. 30, 2011
Amendment Flag false  
Document Fiscal Year Focus 2011  
Document Fiscal Period Focus Q2  
Current Fiscal Year End Date --12-31  
Entity Well-known Seasoned Issuer Yes  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Filer Category Large Accelerated Filer  
Entity Public Float   $ 136,438,881,628
Entity Common Stock, Shares Outstanding 2,010,593,599