Lessee, Operating Lease, Number Of Extension

No definition available.

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- Definition

Operating Lease, Number Of Properties

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

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- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 805
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-Publisher FASB
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+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
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+ Details

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-3

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

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Balance Type:	na
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- Definition

Amount of acquisition of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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- Details

Name:	srt_StatementGeographicalAxis=mrna_CambridgeMassachusettsMember
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Leases - Narrative (Details) ft² in Thousands, $ in Millions	1 Months Ended	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2025 ft² numberOfExtensionPeriod campus	Sep. 30, 2023 numberOfExtensionPeriod
Lessee, Lease, Description [Line Items]
Number of campuses \| campus			2
MTC South, MTC North and MTC East
Lessee, Lease, Description [Line Items]
Area of office space (in sqft) \| ft²			722
Number of extension \| numberOfExtensionPeriod			3
Extension term			5 years
MTC South, MTC North and MTC East \| Moderna Technology Center
Lessee, Lease, Description [Line Items]
Consideration transferred \| $	$ 385
Property additions \| $		$ 231
Cambridge Leases
Lessee, Lease, Description [Line Items]
Area of office space (in sqft) \| ft²			462
Lease term				15 years
Number of extension \| numberOfExtensionPeriod				2
Extension term				7 years