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cm:Level2TextBlock: us-gaap:RegulatoryIncomeTaxesPolicy
Standard label: Regulatory Income Taxes, Policy [Policy Text Block]
Name: us-gaap:RegulatoryIncomeTaxesPolicy
Documentation: Disclosure of accounting policy for income taxes, including investment tax credits, and the related regulatory treatment (for example, whether deferred income tax accounting - normalization - is allowed in rate making).
Object type: cm:Level2TextBlock
Data type: Text Block (HTML) (nonnum:textBlockItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:RegulatoryIncomeTaxesPolicy

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Labels
Label Role Language
Regulatory Income Taxes, Policy [Policy Text Block] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 235 10 50 3 http://fasb.org/us-gaap/role/ref/legacyRef 235
FASB Accounting Standards Codification 980 740 25 1 http://fasb.org/us-gaap/role/ref/legacyRef 980
FASB Accounting Standards Codification 980 740 25 2 http://fasb.org/us-gaap/role/ref/legacyRef 980