CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (66)	$ (607)
Other comprehensive (loss) income
Foreign currency translation adjustment	(56)	(124)
Pension and postretirement benefit plan adjustments, net of income taxes	6	1
Other comprehensive loss	(50)	(123)
Comprehensive loss	(116)	(730)
Comprehensive income attributable to noncontrolling interest	(3)	(3)
Comprehensive loss attributable to Bausch Health Companies Inc.	$ (119)	$ (733)