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Associated companies (Details 2) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of associates [line items] |  |  |
Net income statement effect | $ (9) | $ 15,339 | $ 673
Cumulative currency translation effects |  |  |
Disclosure of associates [line items] |  |  |
Cumulative currency translation gains/losses recycled through income statement | $ 13 | 3,200 | 0
Roche Holding AG, Switzerland |  |  |
Disclosure of associates [line items] |  |  |
Novartis share of current year consolidated net income |  | 815 | 913
Prior year adjustment |  | 40 | (64)
Amortization of fair value adjustments relating to intangible assets |  | (70) | (172)
Gain on divestment |  | 14,556 |
Net income statement effect |  | 15,341 | 677
Amortization of fair value adjustments relating to intangible assets tax |  | $ 10 | $ 26

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