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v3.20.4

Goodwill and intangible assets (Details 4) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about intangible assets [line items] |  |  |
Reversal of impairment charge |  | $ 37 | $ 0
Operating segments [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | $ (914) | (1,175) | (841)
Operating segments [member] | Innovative Medicines |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (768) | (669) | (592)
Operating segments [member] | Sandoz |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (141) | (506) | (249)
Operating segments [member] | Sandoz | Disposal groups classified as held for sale [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge |  |  | (220)
Operating segments [member] | Corporate |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (5) |  |
Accumulated depreciation, amortisation and impairment | Intangible Assets other than Goodwill |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (914) | (1,175) |
Reversal of impairment charge |  | 37 |
Accumulated depreciation, amortisation and impairment | Acquired research and development [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (515) | (984) |
Reversal of impairment charge |  | 37 |
Accumulated depreciation, amortisation and impairment | Technologies |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (40) | (105) |
Accumulated depreciation, amortisation and impairment | Currently marketed products |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (338) | (54) |
Accumulated depreciation, amortisation and impairment | Other intangible assets |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (21) | (32) |
Accumulated depreciation, amortisation and impairment | Disposal groups classified as held for sale [member] | Currently marketed products |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge |  |  | (37)
Accumulated depreciation, amortisation and impairment | Innovative Medicines | Acquired research and development [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | (485) | (416) |
Accumulated depreciation, amortisation and impairment | Innovative Medicines | Votrient [member] | Acquired research and development [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge | $ (181) |  |
Accumulated depreciation, amortisation and impairment | Innovative Medicines | Votrient [member] | Currently marketed products |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge |  |  | $ (400)
Accumulated depreciation, amortisation and impairment | Innovative Medicines | Other [member] | Acquired research and development [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge |  | (108) |
Accumulated depreciation, amortisation and impairment | Operating segments [member] | Acquired research and development [member] |  |  |
Disclosure of detailed information about intangible assets [line items] |  |  |
Impairment charge |  | $ (442) |

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