Details for Selection
| Standard label: | Description of Postretirement Medical Plans with Prescription Drug Benefits |
| Name: | us-gaap:DescriptionOfPostretirementMedicalPlansWithPrescriptionDrugBenefits |
| Documentation: | Description of postretirement medical plans that contain prescription drug coverage and the existence of the Medicare Prescription Drug, Improvement and Modernization Act of 2003 (the "Act"). |
| Commentary: | |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For period (duration) |
| Balance type: | |
| Object class: | [Concept] |