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Goodwill and intangible assets (Details 3) - USD ($) $ in Billions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Leqvio [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Carrying value | $ 7.4 | $ 7.9
Remaining amortisation period | 13 years | 14 years
Zolgensma [member] |  |
Disclosure of detailed information about intangible assets [line items] |  |
Carrying value | $ 5.9 | $ 6.6
Remaining amortisation period | 8 years | 9 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of intangible assets that are material to the entity’s financial statements. [Refer: Intangible assets other than goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 122 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_122_b&doctype=Standard -URIDate 2022-03-24 + Details
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Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The remaining amortisation period of individual intangible assets that are material to the entity’s financial statements. [Refer: Depreciation and amortisation expense] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 122 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_122_b&doctype=Standard -URIDate 2022-03-24 + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_ProductsAndServicesAxis=nvs_ZolgensmaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |