LOSS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of calculation of loss per share

Loss per share attributable to Bausch Health Companies Inc. for 2020, 2019 and 2018 were calculated as follows:

(in millions, except per share amounts)	2020		2019		2018
Net loss attributable to Bausch Health Companies Inc.	$	(560)	$	(1,788)	$	(4,148)
Basic and diluted weighted-average common shares	355.0		352.1		351.3
Basic and diluted loss per share attributable to Bausch Health Companies Inc.	$	(1.58)	$	(5.08)	$	(11.81)