Debt Instrument, Alternate Term, Number Of Days Prior To Scheduled Maturity In Excess Of Principal Amount Threshold

No definition available.

Name:	bhc_DebtInstrumentAlternateTermNumberOfDaysPriorToScheduledMaturityInExcessOfPrincipalAmountThreshold
Namespace Prefix:	bhc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Alternate Term, Principal Amount Maturity Threshold

+ References

No definition available.

+ Details

Name:	bhc_DebtInstrumentAlternateTermPrincipalAmountMaturityThreshold
Namespace Prefix:	bhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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-Publisher FASB
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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_TermLoanBFacilityDueJune2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_RevolvingCreditFacilityDueJune2023Member
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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FINANCING ARRANGEMENTS - Senior Secured Credit Facilities (Details) - USD ($)	Nov. 27, 2018	Jun. 01, 2018	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt			$ 22,654,000,000	$ 23,925,000,000
Term Loan B Facility Due June 2025
Debt Instrument [Line Items]
Debt instrument, term	7 years	7 years
Aggregate principal amount	$ 1,500,000,000	$ 4,565,000,000
Long-term debt			2,772,000,000	3,220,000,000
Revolving credit facility \| 2023 Revolving Credit Facility Due June 2023
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 1,225,000,000
Alternate term, number of days prior to scheduled maturity in excess of principal amount threshold		91 days
Alternate term, principal amount maturity threshold		$ 1,000,000,000
Long-term debt			285,000,000	$ 0
Remaining availability			886,000,000
Letter of Credit \| 2023 Revolving Credit Facility Due June 2023
Debt Instrument [Line Items]
Long-term debt			$ 54,000,000