Related Party Transactions - Transactions with Subsidiaries, Joint Ventures and Associates - Loans Issued and Guarantees Granted (Detail) - EUR (€) € in Millions |
6 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
||||
| Related party transactions [abstract] | |||||
| Loans outstanding, beginning of period | € 66 | [1] | € 73 | ||
| Net movement in loans during the period | 0 | (7) | |||
| Changes in the group of consolidated companies | 0 | 0 | |||
| Exchange rate changes/other | 0 | 0 | |||
| Loans outstanding, end of period | [1] | 66 | 66 | ||
| Other credit risk related transactions: | |||||
| Allowance for loan losses | 0 | 0 | |||
| Provision for loan losses | 0 | 0 | |||
| Guarantees and commitments | € 3 | € 3 | |||
| |||||
| X | ||||||||||
- Definition Allowance for loan losses, Loans (Transactions with Subsidiaries, Joint Ventures and Associates) No definition available.
|
| X | ||||||||||
- Definition Changes in the group of consolidated companies, Loans No definition available.
|
| X | ||||||||||
- Definition Exchange rate changes/other, Loans No definition available.
|
| X | ||||||||||
- Definition Movement in loans during the period No definition available.
|
| X | ||||||||||
- Definition Other credit risk related transactions: No definition available.
|
| X | ||||||||||
- Definition The amounts receivable resulting from related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of outstanding commitments made on behalf of the entity in related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition The amount of provisions for doubtful debts related to the amount of outstanding balances in related party transactions. [Refer: Provisions] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|