Details for Selection
| Standard label: | Prescription Drug Benefit, Reduction in Accumulated Postretirement Benefit Obligation for Subsidy |
| Name: | us-gaap:PrescriptionDrugBenefitReductionInAccumulatedPostretirementBenefitObligationForSubsidy |
| Documentation: | Amount of the reduction in the accumulated postretirement benefit obligation for the government subsidy related to prescription drug benefits attributed to past service. Disclosure relates to the first period in which an employer includes the effects of the subsidy in measuring the accumulated postretirement benefit obligation and net periodic postretirement benefit cost. |
| Commentary: | |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As of (instant) |
| Balance type: | Debit |
| Object class: | [Concept] |