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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Narrative (Details)	3 Months Ended
	Mar. 31, 2025 USD ($) rate	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2022 USD ($)
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	$ 1,134,000,000	$ 733,000,000	$ 1,181,000,000
Receipts in interest settlement of cross-currency swaps	$ (6,000,000)	(6,000,000)
Level 3 | Recurring basis | Measurement Input, Weighted Average Risk-Adjusted Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, contingent consideration obligations, discount rate | rate	0.08
Level 2 | Nonrecurring adjustment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of long-term debt	$ 18,844,000,000		$ 18,243,000,000
Minimum | Level 3 | Recurring basis | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, contingent consideration obligations, discount rate | rate	0.06
Maximum | Level 3 | Recurring basis | Measurement Input, Discount Rate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, contingent consideration obligations, discount rate | rate	0.28
Cross-currency swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Receipts in interest settlement of cross-currency swaps	$ 6,000,000	$ 6,000,000
Foreign currency exchange contracts | Not Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate notional amounts	618,000,000
Bausch + Lomb
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 215,000,000
Bausch + Lomb | Cross-currency swaps | Net Investment Hedging | Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Aggregate notional amounts				$ 1,000,000,000

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