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Provisions and other current liabilities (Details 1) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Provisions for deductions from revenue [roll forward]
Provisions for deductions from revenue, at beginning of period	$ 6,481	$ 6,256	$ 5,595
Effects of currency translation and business combinations	(210)	(218)	234
Payments/utilizations	(22,261)	(19,838)	(19,294)
Additions prior year	(322)	(245)	(151)
Additions current year	23,072	20,413	19,773
Changes in offset against gross trade receivables	(28)	113	99
Provisions for deductions from revenue, at end of period	$ 6,732	$ 6,481	$ 6,256

X

- Definition

The amount of current provision for refunds. [Refer: Refunds provision]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Section Example 4 Refunds policy
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&doctype=Illustrative%20Examples&dita_xref=IAS37_IE_C_ex4__IAS37_IE_C_ex4_TI
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Paragraph 87
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_87&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The amount used (ie incurred and charged against the provision) for other provisions. [Refer: Other provisions]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 37
-IssueDate 2022-03-24
-Paragraph 84
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=37&code=ifrs-tx-2022-en-r&anchor=para_84_c&doctype=Standard
-URIDate 2022-03-24

+ Details

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Namespace Prefix:	ifrs-full_
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Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	nvs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	nvs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

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Period Type:	duration

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- References

No definition available.

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Namespace Prefix:	nvs_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

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- References

No definition available.

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Namespace Prefix:	nvs_
Data Type:	xbrli:stringItemType
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Period Type:	duration