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SEGMENT INFORMATION - Revenues by Product Category (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) product	Dec. 31, 2022 USD ($) product	Dec. 31, 2021 USD ($) product
Revenue from External Customer [Line Items]
Number of products represented of total revenue | product	10	10	10
Revenues	$ 8,757	$ 8,124	$ 8,434
Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	3,909	3,642	3,743
Devices
Revenue from External Customer [Line Items]
Revenues	1,997	1,872	1,903
OTC
Revenue from External Customer [Line Items]
Revenues	1,797	1,619	1,538
Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	960	892	1,144
Other revenues
Revenue from External Customer [Line Items]
Revenues	94	99	106
Salix
Revenue from External Customer [Line Items]
Revenues	2,250	2,090	2,074
Salix | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	2,251	2,090	2,066
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	(1)	0	8
International
Revenue from External Customer [Line Items]
Revenues	1,071	988	1,166
International | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	250	258	260
International | Devices
Revenue from External Customer [Line Items]
Revenues	0	0	0
International | OTC
Revenue from External Customer [Line Items]
Revenues	179	151	136
International | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	588	527	723
International | Other revenues
Revenue from External Customer [Line Items]
Revenues	54	52	47
Solta Medical
Revenue from External Customer [Line Items]
Revenues	347	300	308
Solta Medical | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	0	0	0
Solta Medical | Devices
Revenue from External Customer [Line Items]
Revenues	347	300	308
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
Revenue from External Customer [Line Items]
Revenues	943	978	1,121
Diversified | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	790	826	924
Diversified | Devices
Revenue from External Customer [Line Items]
Revenues	0	0	0
Diversified | OTC
Revenue from External Customer [Line Items]
Revenues	7	7	7
Diversified | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	120	120	167
Diversified | Other revenues
Revenue from External Customer [Line Items]
Revenues	26	25	23
Bausch + Lomb
Revenue from External Customer [Line Items]
Revenues	4,146	3,768	3,765
Bausch + Lomb | Pharmaceuticals
Revenue from External Customer [Line Items]
Revenues	618	468	493
Bausch + Lomb | Devices
Revenue from External Customer [Line Items]
Revenues	1,650	1,572	1,595
Bausch + Lomb | OTC
Revenue from External Customer [Line Items]
Revenues	1,611	1,461	1,395
Bausch + Lomb | Branded and Other Generics
Revenue from External Customer [Line Items]
Revenues	252	245	254
Bausch + Lomb | Other revenues
Revenue from External Customer [Line Items]
Revenues	$ 15	$ 22	$ 28
Revenues | Product Concentration Risk | Customer, Top Ten Products
Revenue from External Customer [Line Items]
Concentration risk, percentage	48.00%	49.00%	43.00%

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