| Component: (Network and Table) | |
|---|---|
| Network | 2421406 - Disclosure - Segment Information - Net Properties and Equipment by Geographic Area Table (Detail) (http://www.anadarko.com/role/SegmentInformationNetPropertiesAndEquipmentByGeographicAreaTableDetail) |
| Table | Schedule of Revenues from External Customers and Long Lived Assets [Table] |
| Reporting Entity [Axis] | 0000773910 (http://www.sec.gov/CIK) |
| Revenues from External Customers and Long-Lived Assets [Line Items] | Period [Axis] | ||||||||
|---|---|---|---|---|---|---|---|---|---|
2013-12-31 | 2012-12-31 | 2011-12-31 | |||||||
| Geographical [Axis] | Geographical [Axis] | Geographical [Axis] | |||||||
| UNITED STATES | ALGERIA | Other International [Member] | Geographical [Domain] | UNITED STATES | ALGERIA | Other International [Member] | Geographical [Domain] | Geographical [Domain] | |
Net properties and equipment | 40,929,000,000 | 38,398,000,000 | 37,501,000,000 | ||||||