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SEGMENT INFORMATION - Narrative (Details) | 12 Months Ended
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Dec. 31, 2021 reporting_unit
Ortho Dermatologics |
Segment reporting information |
Number of reporting units | 2

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- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=bhc_OrthoDermatologicsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |