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FINANCING ARRANGEMENTS - Senior Secured Credit Facilities (Details)		9 Months Ended
	Nov. 01, 2024 USD ($)	Sep. 30, 2025 USD ($) rate shares	Apr. 08, 2025 USD ($) shares	Feb. 11, 2025 USD ($)	Dec. 31, 2024 USD ($) shares	Jun. 01, 2022 shares	May 10, 2022 USD ($)
Debt Instrument [Line Items]
Common shares, outstanding (in shares) | shares		370,473,221			367,843,058
Principal amount outstanding		$ 20,529,000,000			$ 20,480,000,000
Total long-term debt and other		$ 21,042,000,000			21,616,000,000
Remaining quarterly amortization payments	$ 400,000,000
Bausch + Lomb
Debt Instrument [Line Items]
Common shares, outstanding (in shares) | shares			185,468,421			310,449,643
Line of Credit | Applicable Rate
Debt Instrument [Line Items]
Variable rate (as a percent)		4.25%
Term Loan B Facility Due February 2027
Debt Instrument [Line Items]
Principal amount							$ 2,500,000,000
Principal amount outstanding		$ 0			2,187,000,000
Total long-term debt and other		0			2,166,000,000
February 2027 Term Loan B Facility | Secured Notes
Debt Instrument [Line Items]
Maximum percentage, present value of cash flows of new debt							10.00%
Principal amount outstanding			$ 2,156,000,000
2025 Credit Agreement
Debt Instrument [Line Items]
Dividend and distribution threshold		$ 1,600,000,000
2025 Credit Agreement | SOFR Rate
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		0.00%
Variable rate (as a percent)		1.00%
2025 Credit Agreement | SOFR Rate | Maximum
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		1.00%
2025 Credit Agreement | Bausch + Lomb | Asset Pledged as Collateral
Debt Instrument [Line Items]
Common shares, outstanding (in shares) | shares		185,468,421
2025 Credit Agreement | Line of Credit
Debt Instrument [Line Items]
Commitment fee (as a percent)		0.50%
2025 Credit Agreement | Line of Credit | SOFR, EUTIBOT and Term CORRA
Debt Instrument [Line Items]
Variable rate (as a percent)		3.25%
2025 Credit Agreement | Line of Credit | Applicable Rate
Debt Instrument [Line Items]
Variable rate (as a percent)		0.25%
Number of debt instruments | rate		2
2025 Credit Agreement | Line of Credit | Applicable Rate | Maximum
Debt Instrument [Line Items]
Secured leverage ratio (not greater than)		2.6
2025 Credit Agreement | Line of Credit | Applicable Rate | Minimum
Debt Instrument [Line Items]
Secured leverage ratio (not greater than)		2.1
Term Loan B Facility Due 2030
Debt Instrument [Line Items]
Principal amount			3,000,000,000
Annual amortization rate (as a percent)		1.00%
Quarterly amortization payments		$ 30,000,000
Remaining quarterly amortization payments		$ 150,000,000
Term Loan B Facility Due 2030 | Federal Funds Effective Rate and Overnight Bank Funding Rate
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		0.00%
Variable rate (as a percent)		0.50%
Term Loan B Facility Due 2030 | SOFR Rate
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		0.00%
Stated interest rate on debt (as a percent)		6.25%
Term Loan B Facility Due 2030 | Alternate Base Rate
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)		5.25%
Term Loan B Facility Due 2030 | Secured Notes
Debt Instrument [Line Items]
Disposition of property threshold		$ 100,000,000
Term Loan B Facility Due 2030 | Line of Credit
Debt Instrument [Line Items]
Dividend and distribution threshold		$ 50,000,000
Revolving Credit Facility Due 2030 | Federal Funds Effective Rate and Overnight Bank Funding Rate
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		0.00%
Variable rate (as a percent)		0.50%
Revolving Credit Facility Due 2030 | SOFR Rate | Maximum
Debt Instrument [Line Items]
Variable rate, floor (as a percent)		0.00%
Revolving Credit Facility Due 2030 | Canadian Overnight Repo Rate Average
Debt Instrument [Line Items]
Variable rate (as a percent)		0.00%
Revolving Credit Facility Due 2030 | Canadian Overnight Repo Rate Average | One Month Interest Period
Debt Instrument [Line Items]
Variable rate (as a percent)		0.29547%
Revolving Credit Facility Due 2030 | Canadian Overnight Repo Rate Average | Three Month Interest Period
Debt Instrument [Line Items]
Variable rate (as a percent)		0.32138%
Revolving Credit Facility Due 2030 | Canadian Overnight Repo Rate Average | Maximum
Debt Instrument [Line Items]
Variable rate (as a percent)		1.00%
Revolving Credit Facility Due 2030 | Canadian Overnight Repo Rate Average | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)		1.00%
Revolving Credit Facility Due 2030 | EURIBOR
Debt Instrument [Line Items]
Variable rate (as a percent)		0.00%
Revolving Credit Facility Due 2030 | Line of Credit
Debt Instrument [Line Items]
Customary fronting fees (as a percent)		0.125%
Revolving Credit Facility Due 2030 | Line of Credit | Applicable Rate
Debt Instrument [Line Items]
Variable rate (as a percent)		0.125%
Number of debt instruments | rate		2
Revolving Credit Facility Due 2030 | Line of Credit | Applicable Rate | Maximum
Debt Instrument [Line Items]
Secured leverage ratio (not greater than)		2.6
Revolving Credit Facility Due 2030 | Line of Credit | Applicable Rate | Minimum
Debt Instrument [Line Items]
Secured leverage ratio (not greater than)		2.1
2032 Senior Secured Notes | Secured Notes
Debt Instrument [Line Items]
Percentage of net cash proceeds of pro rata basis with obligations		100.00%
Senior Secured Credit Facilities
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)		11.00%
4.875% Senior Notes Due June 2028 | Secured Notes
Debt Instrument [Line Items]
Stated interest rate on debt (as a percent)		4.875%
Principal amount outstanding		$ 1,600,000,000			1,600,000,000
Total long-term debt and other		1,592,000,000			1,589,000,000
Bridge Loan | Senior Secured Bridge Term Loan Facility
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 700,000,000
Revolving Credit Facility | 2027 Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 975,000,000
Principal amount outstanding		0			0
Total long-term debt and other		$ 0			$ 0
Revolving Credit Facility | 2025 Credit Agreement
Debt Instrument [Line Items]
Fixed charge coverage ratio		4.25
Secured leverage ratio		5.75
Minimum liquidity		$ 400,000,000
Revolving Credit Facility | 2025 Credit Agreement | Bausch + Lomb
Debt Instrument [Line Items]
Fixed charge coverage ratio		2.00
Secured leverage ratio		6.50
Revolving Credit Facility | Revolving Credit Facility Due 2030
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 500,000,000
Alternate term, number of days prior to scheduled maturity in excess of principal amount threshold		91 days
Alternate maturity, threshold, aggregate principal amount		$ 1,000,000,000
Principal amount outstanding		0
Letter of Credit | Revolving Credit Facility Due 2030
Debt Instrument [Line Items]
Total long-term debt and other		$ 31,000,000

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