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Segment information and information by geographical area - Identifiable assets and investments (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Geographical areas |  |  |
Assets | € 123,440 | € 118,373 |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 8,376 | 9,119 | € 8,681
Italy |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 1,402 | 1,424 | 1,090
Other European Union |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 306 | 267 | 316
Rest of Europe |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 9 | 538 | 387
Americas |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 1,017 | 534 | 278
Asia |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 1,685 | 1,782 | 898
Africa |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 3,902 | 4,533 | 5,699
Other areas |  |  |
Geographical areas |  |  |
Capital expenditure in tangible and intangible assets and prepaid right-of-use assets | 55 | 41 | 13
Allocated amounts |  |  |
Geographical areas |  |  |
Assets | 91,795 | 85,483 | 89,816
Allocated amounts | Italy |  |  |
Geographical areas |  |  |
Assets | 19,346 | 18,646 | 18,449
Allocated amounts | Other European Union |  |  |
Geographical areas |  |  |
Assets | 7,237 | 7,086 | 7,706
Allocated amounts | Rest of Europe |  |  |
Geographical areas |  |  |
Assets | 1,151 | 1,031 | 6,160
Allocated amounts | Americas |  |  |
Geographical areas |  |  |
Assets | 5,230 | 4,546 | 4,406
Allocated amounts | Asia |  |  |
Geographical areas |  |  |
Assets | 17,898 | 16,910 | 16,527
Allocated amounts | Africa |  |  |
Geographical areas |  |  |
Assets | 40,021 | 36,155 | 35,385
Allocated amounts | Other areas |  |  |
Geographical areas |  |  |
Assets | € 912 | € 1,109 | € 1,183

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