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SEGMENT INFORMATION - Segment Revenues and Profit (Details) - USD ($) $ in Millions		3 Months Ended
	May 26, 2020	Mar. 31, 2021	Mar. 31, 2020
Segment reporting information
Revenues		$ 2,027	$ 2,012
Operating (loss) income		(221)	248
Amortization of intangible assets		(357)	(436)
Goodwill impairments		(469)	0
Asset impairments		(148)	(14)
Restructuring, integration and separation costs		(12)	(4)
Other income (expense), net		30	(36)
Interest income		2	7
Interest expense		(368)	(396)
Loss on extinguishment of debt	$ (27)	(5)	(24)
Foreign exchange and other		1	(13)
Loss before (provision for) benefit from income taxes		(591)	(178)
Bausch + Lomb
Segment reporting information
Revenues		881	875
Salix
Segment reporting information
Revenues		472	477
International Rx
Segment reporting information
Revenues		306	291
Ortho Dermatologics
Segment reporting information
Revenues		141	131
Diversified Products
Segment reporting information
Revenues		227	238
Operating Segment
Segment reporting information
Revenues		2,027	2,012
Operating (loss) income		916	894
Operating Segment | Bausch + Lomb
Segment reporting information
Revenues		881	875
Operating (loss) income		239	263
Operating Segment | Salix
Segment reporting information
Revenues		472	477
Operating (loss) income		327	319
Operating Segment | International Rx
Segment reporting information
Revenues		306	291
Operating (loss) income		109	98
Operating Segment | Ortho Dermatologics
Segment reporting information
Revenues		141	131
Operating (loss) income		70	47
Operating Segment | Diversified Products
Segment reporting information
Revenues		227	238
Operating (loss) income		171	167
Corporate
Segment reporting information
Operating (loss) income		$ (181)	$ (156)

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