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Trade receivables (Details 5) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of provision matrix [line items] |  |
Current trade receivables from closely monitored countries | $ 1,505 | $ 1,588
Current trade receivables from closely monitored countries past due more than one year | 55 | 61
Current trade receivables from closely monitored countries past due more than one year, provisions recorded | $ 27 | $ 24

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

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- References No definition available. + Details
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Namespace Prefix: | nvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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