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Intangible assets, net - Narrative (Details) - EUR (€) € in Millions | Dec. 31, 2025 | Dec. 31, 2024
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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