v3.25.2
Document And Entity Information
 6 Months Ended
Jun. 30, 2025
shares
Document information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Period End Date Jun. 30, 2025
Document Transition Report false
Entity File Number 1-2256
Entity Registrant Name Exxon Mobil Corporation
Entity Incorporation, State or Country Code NJ
Entity Tax Identification Number 13-5409005
Entity Address, Address Line One 22777 Springwoods Village Parkway
Entity Address, City or Town Spring
Entity Address State or Province TX
Entity Address, Postal Zip Code 77389-1425
City Area Code 972
Local Phone Number 940-6000
Entity Current Reporting Status Yes
Entity Interactive Data Current Yes
Entity Filer Category Large Accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Shell Company false
Entity Common Stock, Shares Outstanding 4,263,247,021
Amendment Flag false
Entity Central Index Key 0000034088
Document Fiscal Year Focus 2025
Document Fiscal Period Focus Q2
Current Fiscal Year End Date --12-31
Common Stock, without par value  
Document information [Line Items]  
Security 12(b) Title Common Stock, without par value
Trading Symbol XOM
Security Exchange Name NYSE
0.524% Notes due 2028  
Document information [Line Items]  
Security 12(b) Title 0.524% Notes due 2028
Trading Symbol XOM28
Security Exchange Name NYSE
0.835% Notes due 2032  
Document information [Line Items]  
Security 12(b) Title 0.835% Notes due 2032
Trading Symbol XOM32
Security Exchange Name NYSE
1.408% Notes due 2039  
Document information [Line Items]  
Security 12(b) Title 1.408% Notes due 2039
Trading Symbol XOM39A
Security Exchange Name NYSE