CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (212)	$ (937)	$ (559)
Pension and postretirement benefit plan adjustments:
Net actuarial gain (loss) arising during the year	(4)	24	(15)
Amortization of prior service credit	(3)	(4)	(4)
Amortization or settlement recognition of net loss	10	10	1
Income tax (expense) benefit	(3)	1	2
Foreign currency impact	1	(3)	0
Net pension and postretirement benefit plan adjustments	1	28	(16)
Foreign currency translation adjustment	(257)	(158)	(29)
Other comprehensive loss	(256)	(130)	(45)
Comprehensive loss	(468)	(1,067)	(604)
Comprehensive income attributable to noncontrolling interest	(26)	(12)	(3)
Comprehensive loss attributable to Bausch Health Companies Inc.	$ (494)	$ (1,079)	$ (607)