Debt Instrument, Repurchased Face Amount, Decrease Outstanding Principal

No definition available.

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

- Definition

Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

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+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

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

- Definition

Amount, after accumulated amortization, of debt premium.

+ References

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+ Details

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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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

+ References

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+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

+ References

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Period Type:	duration

- Details

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Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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FINANCING ARRANGEMENTS - 2022 Exchange (Details) - USD ($)		3 Months Ended		6 Months Ended
	Apr. 08, 2025	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Sep. 30, 2022
Extinguishment of Debt [Line Items]
Gain (loss) on extinguishment of debt		$ 0	$ 178,000,000	$ (1,000,000)	$ 178,000,000
Secured Notes \| 9.00% Intermediate Holdco Senior Notes, Due January 2028
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)	9.00%	9.00%		9.00%
Gain (loss) on extinguishment of debt	$ 226,000,000
Secured Notes \| 11.00% First Lien Senior Notes, Due September 2028
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)		11.00%		11.00%
Secured Notes \| Senior Secured 11.00% Notes, First Lien, Due June 2028
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)		11.00%		11.00%			11.00%
Secured Notes \| Senior Secured 10.00% Notes Due 2032
Extinguishment of Debt [Line Items]
Principal amount	$ 4,400,000,000					$ 903,000,000
Stated interest rate on debt (as a percent)	10.00%
Secured Notes \| Senior Secured 10.00% Notes Due April 2032
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)		10.00%		10.00%
Exchange Offer \| Unsecured Notes
Extinguishment of Debt [Line Items]
Repurchased debt, aggregate principal amount							$ 5,594,000,000
Exchange Offer \| Secured Notes
Extinguishment of Debt [Line Items]
Principal amount							3,125,000,000
Reduction of outstanding principal							$ 2,469,000,000
Debt instrument, premium		$ 427,000,000		$ 427,000,000
Contractual interest paid				73,000,000	184,000,000
Reduction of debt premium				66,000,000	$ 164,000,000
Exchange Offer \| Secured Notes \| 11.00% First Lien Senior Notes, Due September 2028
Extinguishment of Debt [Line Items]
Principal amount						886,000,000
Debt instrument, premium						$ 263,000,000
Exchange Offer \| Secured Notes \| Senior Secured 10.00% Notes Due 2032
Extinguishment of Debt [Line Items]
Debt instrument, premium		$ 301,000,000		301,000,000
Contractual interest paid				300,000,000
Reduction of debt premium				$ 47,000,000
Exchange Offer \| Secured Notes \| Senior Secured 10.00% Notes Due April 2032
Extinguishment of Debt [Line Items]
Stated interest rate on debt (as a percent)						10.00%