Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2022	Oct. 28, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-14956
Entity Registrant Name	Bausch Health Companies Inc.
Entity Incorporation, State or Country Code	A1
Entity Address, Country	CA
Entity Tax Identification Number	98-0448205
Entity Address, Address Line One	2150 St. Elzéar Blvd. West
Entity Address, City or Town	Laval
Entity Address, State or Province	QC
Entity Address, Postal Zip Code	H7L 4A8
City Area Code	514
Local Phone Number	744-6792
Title of 12(b) Security	Common Shares, No Par Value
Trading Symbol	BHC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Smaller Reporting Company	false
Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		361,868,131
Entity Central Index Key	0000885590
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false