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INTANGIBLE ASSETS AND GOODWILL - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | $ 11,547 | $ 12,457
Realignment of segment goodwill |  | 0
Additions | 31 | 5
Impairment | (402) | (824)
Foreign exchange and other | 11 | (91)
Balance at the end of the period | 11,187 | 11,547
Bausch + Lomb |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 5,246 | 5,318
Realignment of segment goodwill |  | 0
Additions | 31 | 5
Impairment | 0 | 0
Foreign exchange and other | (15) | (77)
Balance at the end of the period | 5,262 | 5,246
Salix |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 3,159 | 3,159
Realignment of segment goodwill |  | 0
Additions | 0 | 0
Impairment | 0 | 0
Foreign exchange and other | 0 | 0
Balance at the end of the period | 3,159 | 3,159
International |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 789 | 825
Realignment of segment goodwill |  | 0
Additions | 0 | 0
Impairment | 0 | 0
Foreign exchange and other | 22 | (36)
Balance at the end of the period | 811 | 789
Dermatology |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 0 | 798
Realignment of segment goodwill |  | (798)
Additions | 0 | 0
Impairment | 0 | 0
Foreign exchange and other | 0 | 0
Balance at the end of the period | 0 | 0
Solta Medical |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 115 | 0
Realignment of segment goodwill |  | 115
Additions | 0 | 0
Impairment | 0 | 0
Foreign exchange and other | 0 | 0
Balance at the end of the period | 115 | 115
Diversified |  |
Change in the carrying amount of goodwill |  |
Balance at the beginning of the period | 2,238 | 2,357
Realignment of segment goodwill |  | 683
Additions | 0 | 0
Impairment | (402) | (824)
Foreign exchange and other | 4 | 22
Balance at the end of the period | $ 1,840 | $ 2,238

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