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DESCRIPTION OF BUSINESS - Narrative (Details) |  |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 28, 2023 shares | Jun. 01, 2022 $ / shares shares | May 10, 2022 $ / shares shares | Jun. 30, 2023 segment shares | Dec. 31, 2022 shares | Apr. 28, 2022 shares
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Number of operating segments | segment |  |  |  | 3 |  |
Number of reportable segments | segment |  |  |  | 3 |  |
Common shares, outstanding (in shares) |  |  |  | 350,527,323 | 350,000,749 | 350,000,000
BHC | Bausch + Lomb | Subsequent Event |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Common shares, outstanding (in shares) | 310,449,643 |  |  |  |  |
Percentage of shares held | 88.50% |  |  |  |  |
B+L IPO | BHC |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Shares sold (in shares) |  |  | 35,000,000 |  |  |
Price of shares sold (in usd per share) | $ / shares |  |  | $ 18.00 |  |  |
Over-Allotment | BHC |  |  |  |  |  |
Subsidiary, Sale of Stock [Line Items] |  |  |  |  |  |
Shares sold (in shares) |  | 4,550,357 |  |  |  |
Price of shares sold (in usd per share) | $ / shares |  | $ 18.00 |  |  |  |
Underwriters option to purchase additional shares, term |  |  | 30 days |  |  |
Number of additional shares available for issuance (in shares) |  |  | 5,250,000 |  |  |

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