CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT) - USD ($) $ in Millions	Total	Bausch Health Companies Inc. Shareholders’ Deficit	Common Shares	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Non- controlling Interest
Beginning Balance (in shares) at Dec. 31, 2021			359,400,000
Beginning Balance at Dec. 31, 2021	$ (34)	$ (106)	$ 10,317	$ 462	$ (8,961)	$ (1,924)	$ 72
Increase (Decrease) in Shareholders' Equity
Common shares issued under share-based compensation plans (in shares)			1,900,000
Common shares issued under share-based compensation plans	2	2	$ 56	(54)
Share-based compensation	32	32		32
Employee withholding taxes related to share-based awards	(25)	(25)		(25)
Net (loss) income	(66)	(69)			(69)		3
Other comprehensive loss	(50)	(50)				(50)
Ending Balance (in shares) at Mar. 31, 2022			361,300,000
Ending Balance at Mar. 31, 2022	$ (141)	(216)	$ 10,373	415	(9,030)	(1,974)	75
Beginning Balance (in shares) at Dec. 31, 2022	361,898,846		361,900,000
Beginning Balance at Dec. 31, 2022	$ 260	(692)	$ 10,391	159	(9,186)	(2,056)	952
Increase (Decrease) in Shareholders' Equity
Common shares issued under share-based compensation plans (in shares)			1,700,000
Common shares issued under share-based compensation plans	0		$ 14	(14)
Share-based compensation	41	41		41
Employee withholding taxes related to share-based awards	(12)	(12)		(12)
B+L vested shares	0	(3)		(3)			3
Net (loss) income	(209)	(201)			(201)		(8)
Other comprehensive loss	$ 65	67				67	(2)
Ending Balance (in shares) at Mar. 31, 2023	363,607,062		363,600,000
Ending Balance at Mar. 31, 2023	$ 145	$ (800)	$ 10,405	$ 171	$ (9,387)	$ (1,989)	$ 945