SUPPLEMENTARY DATA (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Schedule of quarterly financial information

Selected unaudited quarterly consolidated financial data are shown below:

	2020
(in millions, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenue	$	2,012	$	1,664	$	2,138	$	2,213
Expenses	1,764		1,691		1,678		2,218
Operating income (loss)	$	248	$	(27)	$	460	$	(5)
Net (loss) income attributable to Bausch Health Companies Inc.	$	(152)	$	(326)	$	71	$	(153)
Basic and Diluted (loss) earnings per share attributable to Bausch Health Companies Inc.	$	(0.43)	$	(0.92)	$	0.20	$	(0.43)
Net cash provided by operating activities	$	261	$	200	$	256	$	394

	2019
(in millions, except per share amounts)	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
Revenue	$	2,016	$	2,152	$	2,209	$	2,224
Expenses	1,729		1,895		1,880		3,300
Operating income (loss)	$	287	$	257	$	329	$	(1,076)
Net loss attributable to Bausch Health Companies Inc.	$	(52)	$	(171)	$	(49)	$	(1,516)
Basic and Diluted loss per share attributable to Bausch Health Companies Inc.	$	(0.15)	$	(0.49)	$	(0.14)	$	(4.30)
Net cash provided by operating activities	$	413	$	339	$	515	$	234