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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Assets and Liabilities Measured at Fair Value on a Recurring Basis, Narrative (Details) $ in Millions |  | 6 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 16, 2019 USD ($) | Jun. 30, 2022 USD ($) appeal | Dec. 31, 2021 USD ($) | Jun. 30, 2021 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Highly liquid investments, maturity period (or less) |  | 3 months |  |
Cash and cash equivalents |  | $ 659 | $ 582 | $ 642
Bausch + Lomb |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents |  | 446 |  |
Bausch + Lomb. To Be Distributed To Other Legal Entities |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Cash and cash equivalents |  | 92 |  |
US Securities Litigation | Settled Litigation | NEW JERSEY |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Settlement, escrow fund included in restricted cash and other settlement deposits | $ 1,210 | $ 1,210 |  |
Settlement, escrow fund included in restricted cash, number of objectors' appeals | appeal |  | 1 |  |

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