DESCRIPTION OF BUSINESS	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS	DESCRIPTION OF BUSINESSBausch Health Companies Inc. (the “Company”), formerly known as Valeant Pharmaceuticals International, Inc., is a multinational, specialty pharmaceutical and medical device company that develops, manufactures and markets a broad range of branded, generic and branded generic pharmaceuticals, over-the-counter (“OTC”) products and medical devices (contact lenses, intraocular lenses, ophthalmic surgical equipment and aesthetics devices) which are marketed directly or indirectly in approximately 100 countries. Effective August 9, 2013, the Company continued from the federal jurisdiction of Canada to the Province of British Columbia, meaning that the Company became a company registered under the laws of the Province of British Columbia as if it had been incorporated under the laws of the Province of British Columbia. As a result of this continuance, the legal domicile of the Company became the Province of British Columbia, the Canada Business Corporations Act ceased to apply to the Company and the Company became subject to the British Columbia Business Corporations Act.