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Financial derivatives at fair value statement and equity (Details) - EUR (€) € in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | € (44) |  |
Increase decrease in net financial derivatives with effect on reserves | 113 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (5) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 4 |  |
Increase decrease in net financial derivatives with effect on cash | 59 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (131) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (84) |  |
At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives | 109 | € 109 | € 153
Increase decrease in net financial derivatives | (44) |  |
Inflation derivatives [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 19 |  |
Increase decrease in net financial derivatives with effect on reserves | 12 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 6 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 4 |  |
Increase decrease in net financial derivatives with effect on cash | (11) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 8 |  |
Inflation derivatives [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 134 | 115
Increase decrease in net financial derivatives | 19 |  |
Inflation derivatives [Member] | Cash flow hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 19 |  |
Increase decrease in net financial derivatives with effect on reserves | 12 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 6 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 4 |  |
Increase decrease in net financial derivatives with effect on cash | (11) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 8 |  |
Inflation derivatives [Member] | Cash flow hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 134 | 115
Increase decrease in net financial derivatives | 19 |  |
Interest rate derivatives [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (17) |  |
Increase decrease in net financial derivatives with effect on reserves | 26 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 3 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | (1) |  |
Increase decrease in net financial derivatives with effect on cash | (1) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 1 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (45) |  |
Interest rate derivatives [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (57) | (39)
Increase decrease in net financial derivatives | (17) |  |
Interest rate derivatives [Member] | Cash flow hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (17) |  |
Increase decrease in net financial derivatives with effect on reserves | 17 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 3 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | (1) |  |
Increase decrease in net financial derivatives with effect on cash | (1) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 1 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (36) |  |
Interest rate derivatives [Member] | Cash flow hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (57) | (39)
Increase decrease in net financial derivatives | (17) |  |
Interest rate derivatives [Member] | Fair value hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 0 |  |
Increase decrease in net financial derivatives with effect on reserves | 9 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 0 |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (9) |  |
Interest rate derivatives [Member] | Fair value hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 0 | 0
Increase decrease in net financial derivatives | 0 |  |
Cross currency swaps [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (17) |  |
Increase decrease in net financial derivatives with effect on reserves | 77 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (19) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 7 |  |
Increase decrease in net financial derivatives with effect on cash | 12 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (109) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 15 |  |
Cross currency swaps [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 42 | 58
Increase decrease in net financial derivatives | (17) |  |
Cross currency swaps [Member] | Cash flow hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 14 |  |
Increase decrease in net financial derivatives with effect on reserves | (1) |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 7 |  |
Increase decrease in net financial derivatives with effect on cash | (7) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 15 |  |
Cross currency swaps [Member] | Cash flow hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 1 | (13)
Increase decrease in net financial derivatives | 14 |  |
Cross currency swaps [Member] | Fair value hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 0 |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 0 |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 0 |  |
Cross currency swaps [Member] | Fair value hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 0 | 0
Increase decrease in net financial derivatives | 0 |  |
Cross currency swaps [Member] | Hedge of net investment in foreign [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (31) |  |
Increase decrease in net financial derivatives with effect on reserves | 78 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (19) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 19 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (109) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 0 |  |
Cross currency swaps [Member] | Hedge of net investment in foreign [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 41 | 72
Increase decrease in net financial derivatives | (31) |  |
Foreign exchange derivatives member [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (38) |  |
Increase decrease in net financial derivatives with effect on reserves | (2) |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (12) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | (6) |  |
Increase decrease in net financial derivatives with effect on cash | 65 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (23) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (60) |  |
Foreign exchange derivatives member [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (39) | (1)
Increase decrease in net financial derivatives | (38) |  |
Foreign exchange derivatives member [Member] | Cash flow hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (2) |  |
Increase decrease in net financial derivatives with effect on reserves | (2) |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 1 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 58 |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (59) |  |
Foreign exchange derivatives member [Member] | Cash flow hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (2) | 0
Increase decrease in net financial derivatives | (2) |  |
Foreign exchange derivatives member [Member] | Fair value hedge [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (5) |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (1) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 0 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (4) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 0 |  |
Foreign exchange derivatives member [Member] | Fair value hedge [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (5) | 0
Increase decrease in net financial derivatives | (5) |  |
Foreign exchange derivatives member [Member] | Hedge of net investment in foreign [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (30) |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (5) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | (6) |  |
Increase decrease in net financial derivatives with effect on cash | 0 |  |
Increase decrease in net financial derivatives with effect on exchange rate | (19) |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | 0 |  |
Foreign exchange derivatives member [Member] | Hedge of net investment in foreign [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | (38) | (8)
Increase decrease in net financial derivatives | (30) |  |
Foreign exchange derivatives member [Member] | Speculative [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | (1) |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | (7) |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | 7 |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (1) |  |
Foreign exchange derivatives member [Member] | Speculative [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 6 | 7
Increase decrease in net financial derivatives | (1) |  |
Equity swaps [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 9 |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 17 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | (6) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (2) |  |
Equity swaps [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | 29 | 20
Increase decrease in net financial derivatives | 9 |  |
Equity swaps [Member] | Speculative [Member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Increase decrease in net financial derivatives | 9 |  |
Increase decrease in net financial derivatives with effect on reserves | 0 |  |
Increase decrease in net financial derivatives fair value effect on profit and loss | 17 |  |
Increase decrease in net financial derivatives with effect on final profit and loss | 0 |  |
Increase decrease in net financial derivatives with effect on cash | (6) |  |
Increase decrease in net financial derivatives with effect on exchange rate | 0 |  |
Increase decrease in net financial derivatives with effect on other balance sheetor income statement items | (2) |  |
Equity swaps [Member] | Speculative [Member] | At fair value [member] |  |  |
Financial derivatives at fair value or effect on income statement and equity [Line Items] |  |  |
Net financial derivatives |  | € 29 | € 20
Increase decrease in net financial derivatives | € 9 |  |

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