SEGMENT INFORMATION - Revenues by Product Category (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) product	Dec. 31, 2021 USD ($) product	Dec. 31, 2020 USD ($) product
Revenue from External Customer [Line Items]
Number of products represented of total revenue | product	10	10	10
Revenues	$ 8,124	$ 8,434	$ 8,027
Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	3,676	3,763	3,680
Devices
Revenue from External Customer [Line Items]
Revenues	1,872	1,903	1,566
OTC
Revenue from External Customer [Line Items]
Revenues	1,611	1,532	1,430
Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	887	1,144	1,248
Other revenues
Revenue from External Customer [Line Items]
Revenues	78	92	103
Salix
Revenue from External Customer [Line Items]
Revenues	2,090	2,074	1,904
Salix | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	2,090	2,066	1,899
Salix | Devices
Revenue from External Customer [Line Items]
Revenues	0	0	0
Salix | OTC
Revenue from External Customer [Line Items]
Revenues	0	0	0
Salix | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	0	0	0
Salix | Other revenues
Revenue from External Customer [Line Items]
Revenues	0	8	5
International
Revenue from External Customer [Line Items]
Revenues	988	1,166	1,181
International | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	279	259	255
International | Devices
Revenue from External Customer [Line Items]
Revenues	0	0	0
International | OTC
Revenue from External Customer [Line Items]
Revenues	151	136	112
International | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	527	738	775
International | Other revenues
Revenue from External Customer [Line Items]
Revenues	31	33	39
Solta Medical
Revenue from External Customer [Line Items]
Revenues	300	308	253
Solta Medical | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	0	0	0
Solta Medical | Devices
Revenue from External Customer [Line Items]
Revenues	300	308	253
Solta Medical | OTC
Revenue from External Customer [Line Items]
Revenues	0	0	0
Solta Medical | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	0	0	0
Solta Medical | Other revenues
Revenue from External Customer [Line Items]
Revenues	0	0	0
Diversified Products
Revenue from External Customer [Line Items]
Revenues	978	1,121	1,274
Diversified Products | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	826	924	1,020
Diversified Products | Devices
Revenue from External Customer [Line Items]
Revenues	0	0	0
Diversified Products | OTC
Revenue from External Customer [Line Items]
Revenues	7	7	7
Diversified Products | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	120	167	219
Diversified Products | Other revenues
Revenue from External Customer [Line Items]
Revenues	25	23	28
Bausch + Lomb
Revenue from External Customer [Line Items]
Revenues	3,768	3,765	3,415
Bausch + Lomb | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	481	514	506
Bausch + Lomb | Devices
Revenue from External Customer [Line Items]
Revenues	1,572	1,595	1,313
Bausch + Lomb | OTC
Revenue from External Customer [Line Items]
Revenues	1,453	1,389	1,311
Bausch + Lomb | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	240	239	254
Bausch + Lomb | Other revenues
Revenue from External Customer [Line Items]
Revenues	$ 22	$ 28	$ 31
Revenues | Product Concentration Risk | Customer, Top Ten Products
Revenue from External Customer [Line Items]
Concentration risk, percentage	49.00%	43.00%	41.00%