XML 98 R76.htm IDEA: XBRL DOCUMENT v3.25.4

Commitments and Contingencies - Purchase Commitments and Purchase Orders (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Loss on future firm purchase commitments	$ 5	$ 60
Supply and Manufacturing Agreements
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase commitments	411
Clinical Services
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase commitments	1,000
Clinical Operations and Support Commitments
Purchase Commitment, Excluding Long-term Commitment [Line Items]
Purchase commitments	$ 1,800

X

- Definition

Legal Contingency, Future Firm Purchase Commitments

+ References

No definition available.

+ Details

Name:	mrna_LegalContingencyFutureFirmPurchaseCommitments
Namespace Prefix:	mrna_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- 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

No definition available.

+ Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Minimum amount to be expended to satisfy the terms of arrangements in which the entity has agreed to expend funds to procure goods or services, excluding long-term purchase commitments or unconditional purchase obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(25))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

+ Details

Name:	us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=mrna_SupplyAndManufacturingAgreementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=mrna_ClinicalServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis=mrna_ClinicalOperationsAndSupportCommitmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: