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cm:Member: us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
Standard label: Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Name: us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember
Documentation: Unsecured promissory note (generally negotiable) that provides institutions with short-term funds that is excluded from cash and cash equivalents.
Object type: cm:Member
Data type: [Member] (nonnum:domainItemType)
Period type: For Period (duration)
Balance type: (no balance type)
Abstract: true
Workiva Wdesk Taxonomy Analyzer: us-gaap:CommercialPaperNotIncludedWithCashAndCashEquivalentsMember

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Labels
Label Role Language
Commercial Paper, Not Included with Cash and Cash Equivalents [Member] http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 715 20 50 1 (d)(ii) http://www.xbrl.org/2009/role/commonPracticeRef 715
FASB Accounting Standards Codification 820 10 50 2 http://www.xbrl.org/2009/role/commonPracticeRef 820