| Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block] |
| BenefitObligationsInExcessOfFairValueOfPlanAssets |
| PostEmploymentButPreRetirementCosts |
| Disclosure of the aggregate benefit obligation and aggregate fair value of plan assets for pension plans and/or other employee benefit plans with benefit obligations in excess of plan assets as of the measurement date. |
| Missing [Table] |
| Detail |
| [Level 3 Text Block] |
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| us-gaap:ScheduleOfBenefitObligationsInExcessOfFairValueOfPlanAssetsTableTextBlock |
| http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |