cm:Table: us-gaap:DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable
| Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table] |
| us-gaap:DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |
| Disclosures and provisions pertaining to defined benefit pension plans or other postretirement defined benefit plans. The arrangements are generally based on terms and conditions stipulated by the entity, and which contain a promise by the employer to pay certain amounts or awards at designated future dates, including a period after retirement, upon compliance with stipulated requirements. Excludes disclosures pertaining to defined contribution plans. |
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| us-gaap:DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable |