SEGMENT INFORMATION - Segment Revenues and Profit (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment reporting information
Revenues		$ 2,238	$ 2,046	$ 6,349	$ 5,931
Operating income		14	244	601	690
Amortization of intangible assets		(253)	(290)	(795)	(902)
Goodwill impairments		(402)	(119)	(402)	(202)
Asset impairments		(4)	(1)	(54)	(15)
Restructuring, integration, separation and IPO costs		(14)	(10)	(40)	(58)
Other expense, net		(60)	(4)	0	(6)
Interest income		6	3	19	8
Interest expense		(339)	(385)	(965)	(1,157)
Gain on extinguishment of debt	$ (63)	0	570	0	683
Foreign exchange and other		(7)	7	(38)	4
(Loss) income before income taxes		(326)	439	(383)	228
Salix
Segment reporting information
Revenues		614	544	1,667	1,509
International
Segment reporting information
Revenues		275	250	781	727
Solta Medical
Segment reporting information
Revenues		83	72	244	201
Diversified
Segment reporting information
Revenues		259	238	684	722
Bausch + Lomb
Segment reporting information
Revenues		1,007	942	2,973	2,772
Operating Segment
Segment reporting information
Revenues		2,238	2,046	6,349	5,931
Operating income		969	886	2,595	2,487
Operating Segment | Salix
Segment reporting information
Revenues		614	544	1,667	1,509
Operating income		429	391	1,129	1,067
Operating Segment | International
Segment reporting information
Revenues		275	250	781	727
Operating income		91	85	236	242
Operating Segment | Solta Medical
Segment reporting information
Revenues		83	72	244	201
Operating income		33	33	114	88
Operating Segment | Diversified
Segment reporting information
Revenues		259	238	684	722
Operating income		172	151	417	450
Operating Segment | Bausch + Lomb
Segment reporting information
Revenues		1,007	942	2,973	2,772
Operating income		244	226	699	640
Corporate
Segment reporting information
Operating income		$ (222)	$ (218)	$ (703)	$ (614)