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RELATED PARTIES - Narrative (Details) - USD ($) |  |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 28, 2023 | May 10, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2022 | May 01, 2022 | Apr. 28, 2022 | Jan. 01, 2022
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Common shares, outstanding (in shares) |  |  | 350,527,323 |  | 350,527,323 |  | 350,000,749 |  | 350,000,000 |
Account payable, related party |  |  | $ 348,000,000 |  | $ 348,000,000 |  | $ 370,000,000 |  |  |
Trade receivables, net, related party |  |  | 791,000,000 |  | 791,000,000 |  | 724,000,000 |  |  |
Prepaid expenses and other current assets, related party |  |  | 433,000,000 |  | 433,000,000 |  | 405,000,000 |  |  |
Other non-current assets, related party |  |  | 207,000,000 |  | 207,000,000 |  | 215,000,000 |  |  |
Net borrowings, related party |  |  |  |  |  |  | 0 |  |  |
Payment of BHC purchase debt |  |  |  |  | 0 | $ 2,200,000,000 |  |  |  |
Debt, interest expense |  |  | 58,000,000 | $ 44,000,000 | 108,000,000 | 64,000,000 |  |  |  |
Charges incurred, separation agreement with BHC |  |  | 417,000,000 | $ 368,000,000 | 835,000,000 | 711,000,000 |  |  |  |
BHC |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Allocated corporate and shared costs, related party |  |  |  |  | 0 | 76,000,000 |  |  |  |
Account payable, related party |  |  | 39,000,000 |  | 39,000,000 |  | 53,000,000 |  |  |
Trade receivables, net, related party |  |  | 91,000,000 |  | 91,000,000 |  | 102,000,000 |  |  |
Prepaid expenses and other current assets, related party |  |  | 79,000,000 |  | 79,000,000 |  | 90,000,000 |  |  |
Other non-current assets, related party |  |  | $ 12,000,000 |  | 12,000,000 |  | $ 12,000,000 |  |  |
Return of capital |  | $ 229,000,000 |  |  |  |  |  |  |  |
Charges incurred, separation agreement with BHC |  |  |  |  | $ 1,000,000 | 5,000,000 |  |  |  |
BHC | Minimum |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Related party transaction, term |  | 6 months |  |  |  |  |  |  |  |
BHC | Maximum |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Related party transaction, term |  | 12 months |  |  |  |  |  |  |  |
Promissory Note | BHC |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Debt, principal amount |  |  |  |  |  |  |  |  |  | $ 2,200,000,000
Debt, maturity period |  |  |  |  |  |  |  |  |  | 2 years
Debt, interest rate |  |  |  |  |  |  |  | 6.00% |  | 3.625%
Payment of BHC purchase debt |  | $ 2,200,000,000 |  |  |  |  |  |  |  |
Debt, interest expense |  |  |  |  |  | $ 47,000,000 |  |  |  |
Bausch + Lomb | Subsequent Event | BHC |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |
Common shares, outstanding (in shares) | 310,449,643 |  |  |  |  |  |  |  |  |
Percentage of shares held | 88.50% |  |  |  |  |  |  |  |  |

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