Provisions - Schedule of Detailed Information of Provisions Explanatory (Detail) - EUR (€) € in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disclosure Of Provisions [Abstract]
Non-current	€ 46	€ 3	€ 3
Current	64	128	88
Total	€ 110	€ 131	€ 91	€ 74

The amount of current provisions, including provisions for employee benefits. [Refer: Provisions]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 54
-Subparagraph l
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_54_l&doctype=Standard
-URIDate 2025-03-27

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- Definition

The amount of non-current provisions, including provisions for employee benefits. [Refer: Provisions]

+ References

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- Definition

The amount of liabilities of uncertain timing or amount, including provisions for employee benefits.

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- References

No definition available.

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