Details for Selection
| Standard label: | Increase (Decrease) in Postretirement Obligations |
| Name: | us-gaap:IncreaseDecreaseInPostretirementObligations |
| Documentation: | The increase (decrease) during the reporting period in the amount due to fund non-pension benefits provided to former, retired, and disabled employees. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For period (duration) |
| Balance type: | Debit |
| Object class: | [Concept] |