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Intangible assets, net - Narrative (Details) - EUR (€) € in Millions	Dec. 31, 2025	Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Other intangible assets not yet available for use	€ 54.3	€ 11.8

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- Definition

Other Intangible Assets Not Yet Available For Use

+ References

No definition available.

+ Details

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Namespace Prefix:	asml_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

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