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FINANCING ARRANGEMENTS - Senior Secured Notes (Details) |  |  |  | 1 Months Ended | 3 Months Ended | 5 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 26, 2025 USD ($) | Nov. 01, 2024 USD ($) | Sep. 29, 2023 USD ($) | Apr. 30, 2025 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | May 31, 2024 USD ($) | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($) | Jun. 26, 2025 EUR (€) | Dec. 31, 2024 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  | $ (178,000,000) | $ (12,000,000) |  | $ (178,000,000) | $ (23,000,000) |  |
Remaining quarterly amortization payments |  | $ 400,000,000 |  |  |  |  |  |  |  |  |
Total long-term debt and other |  |  |  |  | 21,738,000,000 |  |  | $ 21,738,000,000 |  |  | $ 21,616,000,000
Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |
Loss on extinguishment of debt |  |  |  | $ (191,000,000) |  |  |  | $ 25,000,000 |  |  |
Debt issuance costs, net |  |  |  |  | 60,000,000 |  |  | $ 60,000,000 |  |  |
Unsecured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  | $ (23,000,000) |  |  |  |
2032 Senior Secured Notes | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  |  |  |  |  |  | 100.00% |  |  |
Collateral amount |  |  |  |  | $ 50,000,000 |  |  | $ 50,000,000 |  |  |
Existing Senior Secured Notes | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |
8.375% Senior Notes Due October 2028 | Secured Notes | Bausch + Lomb |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  |  |  |  |  |  | 101.00% |  |  |
Stated interest rate on debt (as a percent) |  |  | 8.375% |  | 8.375% |  |  | 8.375% |  |  |
Principal amount |  |  | $ 1,400,000,000 |  |  |  |  |  |  |  |
Total long-term debt and other |  |  |  |  | $ 1,385,000,000 |  |  | $ 1,385,000,000 |  |  | 1,382,000,000
8.375% Senior Notes Due October 2028 | Secured Notes | Bausch + Lomb | Debt Instrument, Redemption, Period Three |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price (as a percent) |  |  |  |  |  |  |  | 108.375% |  |  |
8.375% Senior Notes Due October 2028 | Secured Notes | Bausch + Lomb | Maximum | Debt Instrument, Redemption, Period Three |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of principal amount that can be redeemed |  |  |  |  |  |  |  | 40.00% |  |  |
5.500% Senior Notes Due November 2025 | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  | 5.50% |  |  | 5.50% |  |  |
Total long-term debt and other |  |  |  |  | $ 0 |  |  | $ 0 |  |  | 1,678,000,000
6.125% Senior Notes Due February 2027 | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  | 6.125% |  |  | 6.125% |  |  |
Total long-term debt and other |  |  |  |  | $ 0 |  |  | $ 0 |  |  | 993,000,000
5.75% Senior Secured Notes due 2027 | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  | 5.75% |  |  | 5.75% |  |  |
Total long-term debt and other |  |  |  |  | $ 0 |  |  | $ 0 |  |  | 498,000,000
10.00% Secured Notes | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  | 10.00% |  |  | 10.00% |  |  |
Total long-term debt and other |  |  |  |  | $ 4,339,000,000 |  |  | $ 4,339,000,000 |  |  | 0
Term Loan B Due January 2031 | Bausch + Lomb |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Remaining quarterly amortization payments | $ 800,000,000 |  |  |  |  |  |  |  |  |  |
Remaining borrowings |  |  |  |  | 763,000,000 |  |  | 763,000,000 |  |  |
Revolving Credit Facility Due June 2030 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Commitment fee (as a percent) | 0.25% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Revolving Credit Facility | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate, floor (as a percent) | 1.00% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Maximum | Revolving Credit Facility | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 1.75% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Maximum | Revolving Credit Facility | SOFR, EURIBOR, and SONIA Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 2.75% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Minimum | Revolving Credit Facility | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 0.75% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Minimum | Revolving Credit Facility | SOFR, EURIBOR, and SONIA Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 1.75% |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility Due June 2030 | Bausch + Lomb | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total long-term debt and other |  |  |  |  | $ 0 |  |  | $ 0 |  |  | 0
Term Loan Due September 2028 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Annual amortization rate (as a percent) |  |  |  |  |  |  |  |  |  | 1.00% |
Quarterly amortization payments | $ 5,000,000 |  |  |  |  |  |  |  |  |  |
Term Loan Due September 2028 | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 3.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due September 2028 | SOFR Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 4.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due September 2028 | Minimum | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 1.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due September 2028 | Minimum | SOFR Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 0.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Annual amortization rate (as a percent) |  |  |  |  |  |  |  |  |  | 1.00% |
Quarterly amortization payments | $ 23,000,000 |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 3.25% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 | SOFR Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 4.25% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 | Minimum | Base Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 1.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 | Minimum | SOFR Rate |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Variable rate (as a percent) | 0.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 And Term Loan Due September 2028 | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of cash proceeds from incurrence of debt (as a percent) | 100.00% |  |  |  |  |  |  |  |  |  |
Term Loan Due January 2031 And Term Loan Due September 2028 | Secured Notes | Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Percentage of cash proceeds from incurrence of debt (as a percent) | 100.00% |  |  |  |  |  |  |  |  |  |
9.00% Senior Unsecured Notes due 2025 | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  | 9.00% |  |  | 9.00% |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  |  | $ 1,000,000 |  |  |
9.00% Senior Unsecured Notes due 2025 | Unsecured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total long-term debt and other |  |  |  |  | $ 0 |  |  | 0 |  |  | 533,000,000
Senior Secured Notes Due January 2031 | Secured Notes |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Stated interest rate on debt (as a percent) |  |  |  |  |  |  |  |  |  | 5.87% |
Principal amount | € |  |  |  |  |  |  |  |  |  | € 675,000,000 |
Redemption price (as a percent) |  |  | 101.00% |  |  |  |  |  |  |  |
Variable rate (as a percent) | 3.875% |  |  |  |  |  |  |  |  |  |
Variable rate, floor (as a percent) | 0.00% |  |  |  |  |  |  |  |  |  |
Senior Secured Notes Due January 2031 | Secured Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price percentage to change in control (as a percent) |  |  | 100.00% |  |  |  |  |  |  |  |
Senior Secured Notes Due January 2031 | Secured Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Redemption price (as a percent) |  |  | 103.875% |  |  |  |  |  |  |  |
Senior Secured Notes Due January 2031 | Secured Notes | Maximum |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum percentage of principal amount that can be redeemed |  |  | 40.00% |  |  |  |  |  |  |  |
Senior Secured Notes Due January 2031 | Secured Notes | Bausch + Lomb |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total long-term debt and other |  |  |  |  | $ 784,000,000 |  |  | $ 784,000,000 |  |  | $ 0

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