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INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) - USD ($)		3 Months Ended
	Sep. 30, 2022	Mar. 31, 2025	Dec. 31, 2024
Goodwill [Line Items]
Finite-lived intangible assets		$ 3,499,000,000	$ 3,753,000,000
Accumulated goodwill impairment charges		5,497,000,000
Xifaxan Branded Products
Goodwill [Line Items]
Finite-lived intangible assets		$ 1,481,000,000
Finite lived intangible assets, useful life		33 months
Impairment of intangible assets	$ 0	$ 0

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount of accumulated impairment loss for asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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