CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ (DEFICIT) EQUITY - 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, 2022			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)
Vesting of B+L equity compensation	0	(3)		(3)			3
Net loss	(209)	(201)			(201)		(8)
Other comprehensive (loss) income	65	67				67	(2)
Ending Balance (in shares) at Mar. 31, 2023			363,600,000
Ending Balance at Mar. 31, 2023	$ 145	(800)	$ 10,405	171	(9,387)	(1,989)	945
Beginning Balance (in shares) at Dec. 31, 2023	365,238,917		365,200,000
Beginning Balance at Dec. 31, 2023	$ (82)	(1,022)	$ 10,423	214	(9,778)	(1,881)	940
Increase (Decrease) in Shareholders' Equity
Common shares issued under share-based compensation plans (in shares)			1,500,000
Common shares issued under share-based compensation plans	0		$ 57	(57)
Share-based compensation	33	33		33
Employee withholding taxes related to share-based awards	(14)	(14)		(14)
Vesting of B+L equity compensation	0	(12)		(12)			12
Net loss	(77)	(64)			(64)		(13)
Other comprehensive (loss) income	$ (34)	(36)				(36)	2
Ending Balance (in shares) at Mar. 31, 2024	366,674,264		366,700,000
Ending Balance at Mar. 31, 2024	$ (174)	$ (1,115)	$ 10,480	$ 164	$ (9,842)	$ (1,917)	$ 941