FINANCING ARRANGEMENTS - Senior Secured Credit Facilities (Details) - USD ($)	Sep. 30, 2023	Sep. 29, 2023	Nov. 29, 2022	May 10, 2022	Dec. 31, 2022	Jun. 01, 2018
Debt Instrument [Line Items]
Principal amount outstanding	$ 20,952,000,000				$ 19,110,000,000
Amount drawn under credit facility	$ 22,430,000,000				20,766,000,000
Bausch + Lomb
Debt Instrument [Line Items]
Percentage of shares held	89.00%
Bausch + Lomb | XIIDRA® And Certain Other Ophthalmology Assets Acquisition
Debt Instrument [Line Items]
Cash consideration paid		$ 1,750,000,000
1261229 B.C. Ltd. | Bausch + Lomb
Debt Instrument [Line Items]
Percentage of shares held			89.00%
Term Loan B Facility Due June 2025
Debt Instrument [Line Items]
Principal amount						$ 4,565,000,000
Term Loan B Facility Due November 2025
Debt Instrument [Line Items]
Principal amount						1,500,000,000
Term Loan B Facility Due February 2027
Debt Instrument [Line Items]
Principal amount				$ 2,500,000,000
Principal amount outstanding	$ 2,343,000,000				2,437,000,000
Amount drawn under credit facility	2,308,000,000				2,392,000,000
Annual amortization rate (as a percent)				5.00%
Quarterly amortization payments				$ 125,000,000
Remaining quarterly amortization payments	406,000,000
Term Loan B Facility Due February 2027 | Base Rate Factor, SOFR
Debt Instrument [Line Items]
Variable rate (as a percent)				1.00%
Term Loan B Facility Due February 2027 | SOFR Rate
Debt Instrument [Line Items]
Variable rate (as a percent)				5.25%
Variable rate, if rate not ascertainable (as a percent)				1.50%
Term Loan B Facility Due February 2027 | SOFR Rate | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)				0.50%
Term Loan B Facility Due February 2027 | Base Rate
Debt Instrument [Line Items]
Variable rate (as a percent)				4.25%
Term Loan B Facility Due February 2027 | Federal Funds
Debt Instrument [Line Items]
Variable rate (as a percent)				0.50%
Senior Secured Credit Facilities
Debt Instrument [Line Items]
Percentage of net cash proceeds of insurance and condemnation proceeds for property or asset losses				100.00%
Percentage of cash proceeds from incurrence of debt				100.00%
Percentage of annual excess cash flow				50.00%
Percentage of cash proceeds from asset sales outside the ordinary course of business payable as mandatory prepayments				100.00%
New Restated Credit Agreement
Debt Instrument [Line Items]
Total leverage ratio				760.00%
Term Loan B Facility Due May 2027 | Bausch + Lomb
Debt Instrument [Line Items]
Principal amount				$ 2,500,000,000
Principal amount outstanding	2,469,000,000				2,488,000,000
Amount drawn under credit facility	2,429,000,000				2,439,000,000
Annual amortization rate (as a percent)				1.00%
Quarterly amortization payments				$ 25,000,000
Remaining quarterly amortization payments	$ 88,000,000
Term				5 years
Stated interest rate on debt (as a percent)	8.76%
Term Loan B Facility Due May 2027 | Base Rate Factor, SOFR | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				0.50%
Term Loan B Facility Due May 2027 | SOFR Rate | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				3.25%
Credit spread adjustment (as a percent)				0.10%
Term Loan B Facility Due May 2027 | Base Rate | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				2.25%
Term Loan B Facility Due May 2027 | Base Rate | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.50%
Term Loan B Due May 2027 And Term Loan B Due September 2028 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				0.015%
Term Loan B Due May 2027 And Term Loan B Due September 2028 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Maximum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				0.475%
Term Loan B Due May 2027 And Term Loan B Due September 2028 | SOFR, CDOR, EURIBOR and SONIA Rates | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.015%
Term Loan B Due May 2027 And Term Loan B Due September 2028 | SOFR, CDOR, EURIBOR and SONIA Rates | Maximum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.475%
Term Loan B Facility Due September 2028 | Bausch + Lomb
Debt Instrument [Line Items]
Principal amount outstanding	$ 500,000,000	$ 500,000,000			0
Amount drawn under credit facility	$ 488,000,000				0
Annual amortization rate (as a percent)		1.00%
Quarterly amortization payments		$ 5,000,000
Remaining quarterly amortization payments		$ 24,000,000
Term		5 years
Stated interest rate on debt (as a percent)	9.32%
Term Loan B Facility Due September 2028 | SOFR Rate | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)	4.00%
Term Loan B Facility Due September 2028 | SOFR Rate | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)	0.00%
Term Loan B Facility Due September 2028 | Base Rate | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)	3.00%
Term Loan B Facility Due September 2028 | Base Rate | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)	1.00%
Revolving Credit Facility | Revolving Credit Facility Due June 2023
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 1,225,000,000
Revolving Credit Facility | Revolving Credit Facility Due February 2027
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 975,000,000
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
Principal amount outstanding	$ 0				470,000,000
Amount drawn under credit facility	0				470,000,000
Threshold for incremental borrowings				$ 1,000,000,000
Incremental borrowings interest rate				40.00%
Interest coverage ratio (not less than)				2.00
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | Secured Notes
Debt Instrument [Line Items]
Secured leverage ratio (not greater than)				3.50
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | Unsecured Notes
Debt Instrument [Line Items]
Total leverage ratio (not greater than)				6.50
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | Minimum
Debt Instrument [Line Items]
Commitment fee (as a percent)				0.25%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | Maximum
Debt Instrument [Line Items]
Commitment fee (as a percent)				0.50%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | SOFR Rate | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)				0.00%
Credit spread adjustment (as a percent)				0.10%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | SOFR Rate | Maximum
Debt Instrument [Line Items]
Credit spread adjustment (as a percent)				0.25%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | EURIBOR | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)				0.00%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)				3.75%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Maximum
Debt Instrument [Line Items]
Variable rate (as a percent)				4.25%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | SOFR, CDOR and EURIBOR Rates | Minimum
Debt Instrument [Line Items]
Variable rate (as a percent)				4.75%
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | SOFR, CDOR and EURIBOR Rates | Maximum
Debt Instrument [Line Items]
Variable rate (as a percent)				5.25%
Revolving Credit Facility | Term Loan B Due May 2027 And Term Loan B Due September 2028 | Bausch + Lomb
Debt Instrument [Line Items]
Percentage of net cash proceeds of insurance and condemnation proceeds for property or asset losses				100.00%
Percentage of cash proceeds from incurrence of debt				100.00%
Percentage of annual excess cash flow				50.00%
Percentage of cash proceeds from asset sales outside the ordinary course of business payable as mandatory prepayments				100.00%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | Bausch + Lomb
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 500,000,000
Principal amount outstanding	175,000,000				0
Amount drawn under credit facility	175,000,000				$ 0
Term				5 years
Remaining borrowings	$ 300,000,000
Facility fee (as a percent)				0.25%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Commitment fee (as a percent)				0.11%
Stated interest rate on debt (as a percent)	7.67%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | Maximum | Bausch + Lomb
Debt Instrument [Line Items]
Commitment fee (as a percent)				0.275%
Stated interest rate on debt (as a percent)	7.68%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR Rate | Bausch + Lomb
Debt Instrument [Line Items]
Credit spread adjustment (as a percent)				0.10%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.00%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				0.75%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | U.S. Dollar Base Rate and Canadian Dollar Prime Rate | Maximum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.75%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR, CDOR, EURIBOR and SONIA Rates | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				0.00%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR, CDOR, EURIBOR and SONIA Rates | Minimum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				1.75%
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR, CDOR, EURIBOR and SONIA Rates | Maximum | Bausch + Lomb
Debt Instrument [Line Items]
Variable rate (as a percent)				2.75%
Letter of Credit | Revolving Credit Facility Due February 2027
Debt Instrument [Line Items]
Amount drawn under credit facility	$ 23,000,000
Letter of Credit | Revolving Credit Facility Due May 2027 | Bausch + Lomb
Debt Instrument [Line Items]
Amount drawn under credit facility	$ 25,000,000