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Rights of Use - Movements of Rights of Use (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Movement of Right-of-Use Assets [Roll Forward] |  |  |
Right-of-use assets at beginning of period | € 8,448 | € 8,279 |
Additions | 2,142 | 2,391 |
Amorti-zation | (2,235) | (2,159) | € (2,064)
Disposals | (61) | (133) |
Business combi-nations | 22 |  |
Transfers and others | (35) | (2) |
Translation differences and inflation adjustments | (389) | 72 |
Right-of-use assets at end of period | 7,907 | 8,448 | 8,279
Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
First application of IAS 21 | 15 |  |
Rights of use on land and natural properties |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
Right-of-use assets at beginning of period | 834 | 885 |
Additions | 226 | 194 |
Amorti-zation | (250) | (231) |
Disposals | (13) | (10) |
Business combi-nations | 5 |  |
Transfers and others | (16) | 0 |
Translation differences and inflation adjustments | 29 | (4) |
Right-of-use assets at end of period | 815 | 834 | 885
Rights of use on land and natural properties | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
First application of IAS 21 | 0 |  |
Rights of use on buildings |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
Right-of-use assets at beginning of period | 4,287 | 4,130 |
Additions | 1,200 | 1,345 |
Amorti-zation | (1,151) | (1,172) |
Disposals | (32) | (95) |
Business combi-nations | 17 |  |
Transfers and others | (18) | 1 |
Translation differences and inflation adjustments | (403) | 78 |
Right-of-use assets at end of period | 3,900 | 4,287 | 4,130
Rights of use on buildings | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
First application of IAS 21 | 0 |  |
Rights of use on plant and machinery |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
Right-of-use assets at beginning of period | 3,080 | 3,037 |
Additions | 634 | 752 |
Amorti-zation | (756) | (686) |
Disposals | (15) | (26) |
Business combi-nations | 0 |  |
Transfers and others | (2) | 3 |
Translation differences and inflation adjustments | (9) | 0 |
Right-of-use assets at end of period | 2,947 | 3,080 | 3,037
Rights of use on plant and machinery | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
First application of IAS 21 | 15 |  |
Other rights of use |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
Right-of-use assets at beginning of period | 247 | 227 |
Additions | 82 | 100 |
Amorti-zation | (78) | (70) |
Disposals | (1) | (2) |
Business combi-nations | 0 |  |
Transfers and others | 1 | (6) |
Translation differences and inflation adjustments | (6) | (2) |
Right-of-use assets at end of period | 245 | € 247 | € 227
Other rights of use | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |  |
Movement of Right-of-Use Assets [Roll Forward] |  |  |
First application of IAS 21 | € 0 |  |

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- Definition The amount of additions to right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_h&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of depreciation of right-of-use assets. [Refer: Depreciation and amortisation expense; Right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease in right-of-use assets resulting from disposals. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in right-of-use assets. [Refer: Right-of-use assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of assets that represent a lessee's right to use an underlying asset for the lease term that do not meet the definition of investment property. Underlying asset is an asset that is the subject of a lease, for which the right to use that asset has been provided by a lessor to a lessee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 53 -Subparagraph j -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_53_j&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 16 -IssueDate 2024-01-01 -Paragraph 47 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2024-en-r&anchor=para_47_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition Inclusion Of Companies, Right-Of-Use Assets + References No definition available. + Details
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- Definition Transfers and others, right-of-use assets + References No definition available. + Details
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