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FINANCING ARRANGEMENTS - Senior Secured Credit Facilities (Details) - USD ($) | Sep. 30, 2024 | Sep. 29, 2023 | May 10, 2022 | Dec. 31, 2023 | Jun. 01, 2018
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Debt Instrument [Line Items] |  |  |  |  |
Principal amount outstanding | $ 20,359,000,000 |  |  | $ 21,006,000,000 |
Amount drawn under credit facility | $ 21,507,000,000 |  |  | 22,388,000,000 |
Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of shares held | 88.00% |  |  |  |
Bausch + Lomb | XIIDRA Acquisition |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Cash consideration paid |  | $ 1,750,000,000 |  |  |
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 | $ 2,218,000,000 |  |  | 2,312,000,000 |
Amount drawn under credit facility | 2,195,000,000 |  |  | 2,279,000,000 |
Annual amortization rate (as a percent) |  |  | 5.00% |  |
Quarterly amortization payments |  |  | $ 125,000,000 |  |
Remaining quarterly amortization payments | 281,000,000 |  |  |  |
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 |  |  | 7.60 |  |
Term Loan B Facility Due May 2027 | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount |  |  | $ 2,500,000,000 |  |
Principal amount outstanding | 2,444,000,000 |  |  | 2,462,000,000 |
Amount drawn under credit facility | 2,415,000,000 |  |  | 2,426,000,000 |
Annual amortization rate (as a percent) |  |  | 1.00% |  |
Quarterly amortization payments |  |  | $ 25,000,000 |  |
Remaining quarterly amortization payments | $ 63,000,000 |  |  |  |
Term |  |  | 5 years |  |
Stated interest rate on debt (as a percent) | 8.27% |  |  |  |
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 | Base 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 | Base 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, EURIBOR, and SONIA Rate | 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, EURIBOR, and SONIA Rate | 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 | $ 495,000,000 | $ 500,000,000 |  | 499,000,000 |
Amount drawn under credit facility | 485,000,000 |  |  | 487,000,000 |
Annual amortization rate (as a percent) |  |  | 1.00% |  |
Quarterly amortization payments |  |  | $ 5,000,000 |  |
Remaining quarterly amortization payments | $ 19,000,000 |  |  |  |
Term |  | 5 years |  |  |
Stated interest rate on debt (as a percent) | 8.85% |  |  |  |
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 |  |  | 0 |
Amount drawn under credit facility | 0 |  |  | 0 |
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 and EURIBOR Rate | Minimum |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate (as a percent) |  |  | 4.75% |  |
Revolving Credit Facility | Revolving Credit Facility Due February 2027 | SOFR and EURIBOR Rate | 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 | 350,000,000 |  |  | 275,000,000 |
Amount drawn under credit facility | 350,000,000 |  |  | $ 275,000,000 |
Facility fee (as a percent) |  |  | 0.25% |  |
Term |  |  | 5 years |  |
Remaining borrowings | $ 121,000,000 |  |  |  |
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) | 7.70% |  |  |  |
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) | 7.97% |  |  |  |
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 | Base Rate | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate (as a percent) |  |  | 1.00% |  |
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | Base Rate | Minimum | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate (as a percent) |  |  | 0.75% |  |
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | Base 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, EURIBOR, and SONIA Rate | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate (as a percent) |  |  | 0.00% |  |
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR, EURIBOR, and SONIA Rate | Minimum | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Variable rate (as a percent) |  |  | 1.75% |  |
Revolving Credit Facility | Revolving Credit Facility Due May 2027 | SOFR, EURIBOR, and SONIA Rate | 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 | $ 22,000,000 |  |  |  |
Letter of Credit | Revolving Credit Facility Due May 2027 | Bausch + Lomb |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Amount drawn under credit facility | $ 29,000,000 |  |  |  |

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