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Risk management - Disclosure of concentrations by risk factor, trading risk (Details) - EUR (€) € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
Time horizon | 1 day |  |
Market risk |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR confidence level, percent | 99.00% |  |
ES confidence level, percent | 97.50% |  |
VaR | € 18.7 | € 18.7 | € 13.5
Expected shortfall | 16.9 |  |
Market risk | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 13.2 | 16.0 | 11.8
Expected shortfall | 13.2 |  |
Market risk | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.5 | 6.4 | 5.0
Expected shortfall | 5.3 |  |
Market risk | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.8 | 9.5 | 7.0
Expected shortfall | 5.9 |  |
Market risk | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 9.6 |  |
Market risk | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 9.6 |  |
Market risk | Min | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.7 |  |
Market risk | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.2 |  |
Market risk | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 17.6 | 17.1 | 11.7
Market risk | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 15.0 | 12.7 | 9.4
Market risk | Average | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.8 | 6.9 | 4.0
Market risk | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.6 | 9.0 | 7.3
Market risk | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 29.2 |  |
Market risk | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 28.2 |  |
Market risk | Max | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 8.9 |  |
Market risk | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 16.5 |  |
Diversification effect |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (17.7) | (27.3) | (17.1)
Expected shortfall | (18.9) |  |
Diversification effect | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (15.9) | (18.4) | (13.8)
Expected shortfall | (17.8) |  |
Diversification effect | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (1.6) | (0.8) | (0.5)
Expected shortfall | (1.8) |  |
Diversification effect | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (8.7) | (5.5) | (6.6)
Expected shortfall | (6.2) |  |
Diversification effect | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (10.7) |  |
Diversification effect | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (8.9) |  |
Diversification effect | Min | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (0.4) |  |
Diversification effect | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (0.3) |  |
Diversification effect | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (21.0) | (19.8) | (14.9)
Diversification effect | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (18.0) | (15.4) | (10.5)
Diversification effect | Average | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (1.7) | (1.1) | (0.7)
Diversification effect | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (5.2) | (6.9) | (6.2)
Diversification effect | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (59.3) |  |
Diversification effect | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (32.4) |  |
Diversification effect | Max | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (6.3) |  |
Diversification effect | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | (28.7) |  |
Interest rate |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 15.3 | 20.2 | 11.1
Expected shortfall | 16.4 |  |
Interest rate | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 11.4 | 14.4 | 8.2
Expected shortfall | 13.3 |  |
Interest rate | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 4.8 | 6.6 | 5.0
Expected shortfall | 4.9 |  |
Interest rate | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 4.0 | 6.5 | 5.6
Expected shortfall | 3.8 |  |
Interest rate | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 11.2 |  |
Interest rate | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 9.0 |  |
Interest rate | Min | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.8 |  |
Interest rate | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.8 |  |
Interest rate | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 16.5 | 17.0 | 12.2
Interest rate | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 13.3 | 12.0 | 9.1
Interest rate | Average | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.9 | 6.9 | 3.7
Interest rate | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.2 | 8.8 | 7.3
Interest rate | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 23.0 |  |
Interest rate | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 19.2 |  |
Interest rate | Max | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 8.8 |  |
Interest rate | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 18.1 |  |
Equities |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 8.1 | 9.5 | 6.0
Expected shortfall | 7.5 |  |
Equities | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.4 | 8.8 | 5.8
Expected shortfall | 7.1 |  |
Equities | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.0 | 0.1 | 0.0
Expected shortfall | 1.0 |  |
Equities | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.2 | 2.1 | 2.4
Expected shortfall | 2.3 |  |
Equities | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.4 |  |
Equities | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.7 |  |
Equities | Min | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.1 |  |
Equities | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.2 |  |
Equities | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 6.5 | 6.0 | 3.2
Equities | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 6.4 | 5.9 | 2.8
Equities | Average | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.8 | 0.2 | 0.2
Equities | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.5 | 1.2 | 1.4
Equities | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 10.8 |  |
Equities | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 11.0 |  |
Equities | Max | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.2 |  |
Equities | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.2 |  |
Exchange rate |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 6.3 | 5.9 | 4.8
Expected shortfall | 5.8 |  |
Exchange rate | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.3 | 5.8 | 5.2
Expected shortfall | 5.7 |  |
Exchange rate | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.3 | 0.5 | 0.5
Expected shortfall | 1.2 |  |
Exchange rate | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 6.5 | 1.3 | 3.0
Expected shortfall | 4.7 |  |
Exchange rate | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.3 |  |
Exchange rate | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.7 |  |
Exchange rate | Min | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.2 |  |
Exchange rate | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.4 |  |
Exchange rate | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.4 | 5.8 | 5.3
Exchange rate | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.3 | 5.1 | 3.5
Exchange rate | Average | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.8 | 0.9 | 0.8
Exchange rate | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.6 | 2.7 | 3.2
Exchange rate | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 37.5 |  |
Exchange rate | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 19.7 |  |
Exchange rate | Max | Total North America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.2 |  |
Exchange rate | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 12.9 |  |
Credit spread |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 4.8 | 5.3 | 6.1
Expected shortfall | 4.8 |  |
Credit spread | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 4.9 | 5.3 | 6.1
Expected shortfall | 4.8 |  |
Credit spread | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.2 |  |
Credit spread | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 3.0 |  |
Credit spread | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.7 | 4.9 | 4.3
Credit spread | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 5.8 | 4.9 | 4.3
Credit spread | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 10.2 |  |
Credit spread | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 10.4 |  |
Commodities |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.9 | 5.1 | 2.6
Expected shortfall | 1.3 |  |
Commodities | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.1 | 0.1 | 0.3
Expected shortfall | 0.1 |  |
Commodities | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 1.8 | 5.1 | 2.6
Expected shortfall | 1.3 |  |
Commodities | Min |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.2 |  |
Commodities | Min | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.1 |  |
Commodities | Min | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.1 |  |
Commodities | Average |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.5 | 3.2 | 1.6
Commodities | Average | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.2 | 0.2 | 0.2
Commodities | Average | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 2.5 | € 3.2 | € 1.6
Commodities | Max |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 7.0 |  |
Commodities | Max | Total Europe |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | 0.3 |  |
Commodities | Max | Total South America |  |  |
Disclosure of nature and extent of risks arising from financial instruments [line items] |  |  |
VaR | € 7.0 |  |

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The measure of a potential loss exposure as a result of future market movements, based on a specified confidence interval and measurement horizon. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 41 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_41&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The specified confidence level percentage used to measure potential loss exposure due to the effects of future market movements on value at risk. + References No definition available. + Details
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