Debt Instrument, Covenant, Redemption And Discharge Condition, Amount, If Circumstances Met

No definition available.

Name:	bhc_DebtInstrumentCovenantRedemptionAndDischargeConditionAmountIfCircumstancesMet
Namespace Prefix:	bhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Debt Instrument, Maximum Redemption Percentage With Equity Offering Proceeds

+ References

No definition available.

+ Details

Name:	bhc_DebtInstrumentMaximumRedemptionPercentageWithEquityOfferingProceeds
Namespace Prefix:	bhc_
Data Type:	dtr-types1:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Redemption Price, Percentage, Change In Control

+ References

No definition available.

+ Details

Name:	bhc_DebtInstrumentRedemptionPricePercentageChangeInControl
Namespace Prefix:	bhc_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Payment For Debt Amortization Prepayment Cost

+ References

No definition available.

+ Details

Name:	bhc_PaymentForDebtAmortizationPrepaymentCost
Namespace Prefix:	bhc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

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

+ References

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(a)(1))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 55
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482949/835-30-55-8

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69B

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69C
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69C

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69E

Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69F
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481568/470-20-55-69F

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 11: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1B

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1D

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1D

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1D

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1F

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1I

Reference 26: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482925/835-30-45-2

Reference 27: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482900/835-30-50-1

+ Details

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

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

+ Details

Name:	us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentRepurchasedFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.6-03(i)(2))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3

+ Details

Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_TermLoanBFacilityDueJune2025AndNovember2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	bhc_TroubledDebtRestructuringDebtorTypeAxis=bhc_ExchangeOfferMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A9.00SeniorNotesdueDecember2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_SeniorNotes6125DueApril2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A6.125SeniorNotesdueApril2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A9.25SeniorNotesDueApril2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A8.50SeniorNotesDueJanuary2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A7.00SeniorUnsecuredNotesDue2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A7.25SeniorUnsecuredNotesDue2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A5.00SeniorNotesDueJanuary2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_A5.25SeniorNotesDueJanuary2030Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_SeniorNotes625DueFebruary2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_SeniorNotes500DueFebruary2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_SeniorNotes525DueFebruary2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhc_SeniorSecuredNotes6.50PercentDueMarch2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

FINANCING ARRANGEMENTS - Senior Unsecured Notes (Details) - USD ($)				1 Months Ended	5 Months Ended	7 Months Ended	12 Months Ended
	May 10, 2022	Dec. 03, 2020	May 26, 2020	Dec. 31, 2023	May 31, 2024	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 31, 2024	Dec. 13, 2022	Sep. 30, 2022	Jan. 18, 2022	Dec. 30, 2019	May 23, 2019	Mar. 31, 2019	Mar. 08, 2019	Jun. 30, 2018	Mar. 26, 2018	Dec. 18, 2017	Mar. 27, 2015
Debt Instrument [Line Items]
Repayments of long-term debt							$ 1,460,000,000	$ 1,710,000,000	$ 7,846,000,000
Term Loan B Facility Due June 2025 and November 2025
Debt Instrument [Line Items]
Repayment, outstanding debt			$ 303,000,000
Senior Unsecured Notes:
Debt Instrument [Line Items]
Redemption price percentage to change in control							101.00%
Repurchased aggregate principal amount				$ 8,000,000	$ 555,000,000			8,000,000				$ 927,000,000
Repayments of long-term debt				7,000,000	530,000,000	$ 550,000,000
Senior Unsecured Notes: \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													$ 5,594,000,000
Senior Unsecured Notes: \| 9.00% Senior Unsecured Notes Due December 2025
Debt Instrument [Line Items]
Repurchased aggregate principal amount														$ 370,000,000
Stated interest rate														9.00%							9.00%
Debt covenant, redemption and discharge condition, amount, if circumstances met														$ 7,000,000,000
Aggregate principal amount																					$ 1,500,000,000
Senior Unsecured Notes: \| 9.00% Senior Unsecured Notes Due December 2025 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount				4,000,000	$ 420,000,000			4,000,000					541,000,000
Senior Unsecured Notes: \| 6.125% Senior Notes Due April 2025
Debt Instrument [Line Items]
Stated interest rate							6.125%
Redemption price percentage	101.021%
Repayments of long-term debt										$ 600,000,000
Senior Unsecured Notes: \| 6.125% Senior Unsecured Notes due April 2025
Debt Instrument [Line Items]
Stated interest rate																						6.125%
Aggregate principal amount																						$ 3,250,000,000
Senior Unsecured Notes: \| 9.25% Senior Unsecured Notes Due April 2026
Debt Instrument [Line Items]
Repurchased aggregate principal amount																				$ 1,500,000,000
Stated interest rate																				9.25%
Aggregate principal amount																				$ 1,500,000,000
Senior Unsecured Notes: \| 9.25% Senior Unsecured Notes Due April 2026 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount				$ 4,000,000				$ 4,000,000			$ 135,000,000		752,000,000
Senior Unsecured Notes: \| 8.50% Senior Unsecured Notes Due January 2027
Debt Instrument [Line Items]
Stated interest rate																	8.50%	8.50%	8.50%
Aggregate principal amount																		$ 1,000,000,000	$ 750,000,000
Senior Unsecured Notes: \| 8.50% Senior Unsecured Notes Due January 2027 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													1,099,000,000
Senior Unsecured Notes: \| 7.00% Senior Unsecured Notes Due 2028
Debt Instrument [Line Items]
Stated interest rate																7.00%
Aggregate principal amount																$ 750,000,000
Senior Unsecured Notes: \| 7.00% Senior Unsecured Notes Due 2028 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													540,000,000
Senior Unsecured Notes: \| 7.25% Senior Unsecured Notes Due 2029
Debt Instrument [Line Items]
Stated interest rate																7.25%
Aggregate principal amount																$ 750,000,000
Senior Unsecured Notes: \| 7.25% Senior Unsecured Notes Due 2029 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													373,000,000
Senior Unsecured Notes: \| 5.00% Senior Unsecured Notes Due January 2028
Debt Instrument [Line Items]
Stated interest rate															5.00%
Aggregate principal amount															$ 1,250,000,000
Senior Unsecured Notes: \| 5.00% Senior Unsecured Notes Due January 2028 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													710,000,000
Senior Unsecured Notes: \| 5.25% Senior Unsecured Notes Due January 2030
Debt Instrument [Line Items]
Stated interest rate															5.25%
Aggregate principal amount															$ 1,250,000,000
Senior Unsecured Notes: \| 5.25% Senior Unsecured Notes Due January 2030 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													332,000,000
Senior Unsecured Notes: \| 6.25% Senior Notes Due February 2029
Debt Instrument [Line Items]
Stated interest rate			6.25%				6.25%
Aggregate principal amount			$ 1,500,000,000
Senior Unsecured Notes: \| 6.25% Senior Notes Due February 2029 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													540,000,000
Senior Unsecured Notes: \| 5.00% Senior Notes Due February 2029
Debt Instrument [Line Items]
Stated interest rate		5.00%					5.00%
Redemption price percentage		100.00%
Aggregate principal amount		$ 1,000,000,000
Maximum percentage of the aggregate principal amount that may be redeemed with the net proceeds of certain equity offerings		40.00%
Senior Unsecured Notes: \| 5.00% Senior Notes Due February 2029 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													371,000,000
Senior Unsecured Notes: \| 5.25% Senior Notes Due February 2031
Debt Instrument [Line Items]
Stated interest rate		5.25%					5.25%
Redemption price percentage		100.00%
Aggregate principal amount		$ 1,000,000,000
Senior Unsecured Notes: \| 5.25% Senior Notes Due February 2031 \| Exchange Offer
Debt Instrument [Line Items]
Repurchased aggregate principal amount													336,000,000
Senior Secured Notes:
Debt Instrument [Line Items]
Redemption price percentage to change in control							101.00%
Senior Secured Notes: \| Exchange Offer
Debt Instrument [Line Items]
Aggregate principal amount													$ 3,125,000,000
Senior Secured Notes: \| 6.50% Senior Notes Due March 2022
Debt Instrument [Line Items]
Repurchased aggregate principal amount			$ 1,250,000,000