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v3.25.3

Goodwill - Summary of Changes in the Carrying Amount of Goodwill by Segment (Detail) $ in Millions | 9 Months Ended
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Sep. 30, 2025 USD ($)
Goodwill [Line Items] |  |
Beginning balance | $ 15,147 | [1]
Translation differences and other | 797 |
Ending balance | 15,945 | [1]
United States [Member] |  |
Goodwill [Line Items] |  |
Beginning balance | 5,732 | [1]
Translation differences and other | 0 |
Ending balance | 5,732 | [1]
Europe [Member] |  |
Goodwill [Line Items] |  |
Beginning balance | 8,075 | [1]
Translation differences and other | 720 |
Ending balance | 8,795 | [1]
International Markets [Member] |  |
Goodwill [Line Items] |  |
Beginning balance | 1,110 | [1]
Translation differences and other | 18 |
Ending balance | 1,128 | [1]
Other [Member] | Tevas API Reporting Unit [Member] |  |
Goodwill [Line Items] |  |
Beginning balance | 0 | [1]
Translation differences and other | 0 |
Ending balance | 0 | [1]
Other [Member] | Medis Reporting Units [Member] |  |
Goodwill [Line Items] |  |
Beginning balance | 232 | [1]
Translation differences and other | 59 |
Ending balance | $ 291 | [1]
[1] | Cumulative goodwill impairment as of September 30, 2025 and December 31, 2024, was each approximately $29.6 billion.

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