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Property, Plant and Equipment - Composition of and Movement in Net Property, Plant and Equipment (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment at beginning of period | € 22,944 | € 23,714
Additions | 3,623 | 3,700
Depre-ciation | (4,102) | (4,055)
Dispo-sals | (48) | (69)
Impair-ments | (846) | (3)
Transfers and others | 104 | (170)
Transla-tion differences | (1,338) | (866)
Inflation adjust-ments | 912 | 693
Business combina-tions | 88 |
Property, plant and equipment at end of period | 21,439 | 22,944
Total additions of property, plant and equipment | 3,676 | 3,741
Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
First applica-tion of IAS 21 | 102 |
Land and buildings |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment at beginning of period | 2,516 | 2,641
Additions | 22 | 21
Depre-ciation | (209) | (206)
Dispo-sals | (21) | (21)
Impair-ments | (175) | 0
Transfers and others | 116 | 145
Transla-tion differences | (119) | (188)
Inflation adjust-ments | 166 | 124
Business combina-tions | 15 |
Property, plant and equipment at end of period | 2,326 | 2,516
Land and buildings | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
First applica-tion of IAS 21 | 15 |
Plant and machinery |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment at beginning of period | 17,947 | 18,165
Additions | 1,041 | 1,123
Depre-ciation | (3,680) | (3,650)
Dispo-sals | (13) | (14)
Impair-ments | (642) | 0
Transfers and others | 2,263 | 2,399
Transla-tion differences | (1,071) | (525)
Inflation adjust-ments | 583 | 449
Business combina-tions | 70 |
Property, plant and equipment at end of period | 16,521 | 17,947
Plant and machinery | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
First applica-tion of IAS 21 | 23 |
Furniture, tools and other items |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment at beginning of period | 618 | 576
Additions | 81 | 136
Depre-ciation | (213) | (199)
Dispo-sals | (2) |
Impair-ments | (24) | 0
Transfers and others | 146 | 112
Transla-tion differences | (40) | (43)
Inflation adjust-ments | 46 | 32
Property, plant and equipment at end of period | 605 | 618
Furniture, tools and other items | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
First applica-tion of IAS 21 | 3 |
PP&E in progress |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Property, plant and equipment at beginning of period | 1,863 | 2,332
Additions | 2,479 | 2,420
Depre-ciation | 0 | 0
Dispo-sals | (12) | (38)
Impair-ments | (5) | (3)
Transfers and others | (2,421) | (2,826)
Transla-tion differences | (108) | (110)
Inflation adjust-ments | 117 | 88
Business combina-tions | 13 |
Property, plant and equipment at end of period | 1,987 | 1,863
PP&E in progress | Increase (decrease) due to changes in accounting policy required by IFRSs, cumulative effect at date of initial application |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
First applica-tion of IAS 21 | 61 |
Netting |  |
Reconciliation of changes in property, plant and equipment [abstract] |  |
Dispo-sals |  | € 4
Business combina-tions | € (10) |

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- Definition The increase in property, plant and equipment resulting from acquisitions through business combinations. [Refer: Total for all business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_iii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Total for all business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 depreciation of property, plant and equipment. [Refer: Depreciation and amortisation expense; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_vii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 75 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_75_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The decrease in property, plant and equipment resulting from disposals. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_ii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The amount of impairment loss recognised in other comprehensive income for property, plant and equipment. [Refer: Impairment loss recognised in other comprehensive income; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_iv&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from transfers and changes that the entity does not separately disclose in the same statement or note. [Refer: Property, plant and equipment] + 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 tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. Note that right-of-use assets are not included. [Contrast: Property, plant and equipment including right-of-use assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from revaluations to fair value. [Refer: Property, plant and equipment; Revaluation surplus] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 73 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_73_e_iv&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2024-01-01 -Paragraph 77 -Subparagraph f -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2024-en-r&anchor=para_77_f&doctype=Standard -URIDate 2024-03-27 + Details
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