| Component: (Network and Table) | |
|---|---|
| Network | 041502 - Disclosure - Litigation And Other Contingencies (Schedule Of Guarantees) (Details) (http://www.exxonmobil.com/role/DisclosureLitigationAndOtherContingenciesScheduleOfGuaranteesDetails) |
| Table | Loss Contingencies [Table] |
| Reporting Entity [Axis] | 0000034088 (http://www.sec.gov/CIK) |
| Period [Axis] | 2013-12-31 |
| Loss Contingencies [Line Items] | Guarantor Obligations by Nature [Axis] | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Debt Related Guarantees [Member] | Other Guarantees [Member] | Guarantee Obligations Nature [Domain] | |||||||
| Loss Contingencies by Nature of Contingency [Axis] | Loss Contingencies by Nature of Contingency [Axis] | Loss Contingencies by Nature of Contingency [Axis] | |||||||
| Equity Company Obligations [Member] | Other Third Party Obligations [Member] | Loss Contingency Nature [Domain] | Equity Company Obligations [Member] | Other Third Party Obligations [Member] | Loss Contingency Nature [Domain] | Equity Company Obligations [Member] | Other Third Party Obligations [Member] | Loss Contingency Nature [Domain] | |
Guarantees | |||||||||