CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (209)	$ (66)
Other comprehensive income (loss)
Foreign currency translation adjustment	65	(56)
Pension and postretirement benefit plan adjustments, net of income taxes	0	6
Other comprehensive income (loss)	65	(50)
Comprehensive loss	(144)	(116)
Comprehensive loss (income) attributable to noncontrolling interest	10	(3)
Comprehensive loss attributable to Bausch Health Companies Inc.	$ (134)	$ (119)