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Revenues from Contracts with Customers - Summary of Revenue Recognized (Details) - EUR (€) € in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue From Contracts With Customers [Abstract]
Amounts included in contract liabilities at the beginning of the year	€ 3.5	€ 63.1	€ 73.7

X

- Definition

Revenue From Contracts With Customers [Abstract]

+ References

No definition available.

+ Details

Name:	bntx_RevenueFromContractsWithCustomersAbstract
Namespace Prefix:	bntx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue from contracts with customers]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2023-01-01
-Paragraph 116
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_116_b&doctype=Standard
-URIDate 2023-03-23

+ Details

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