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Segment information and information by geographical area (Details 1) - EUR (€) € in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | € 85,483 | € 89,816 | € 99,068
Capital expenditure in tangible and intangible assets |  | 9,119 | 8,681 | 9,180
In Italy [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 18,646 | 18,449 | 18,769
Capital expenditure in tangible and intangible assets |  | 1,424 | 1,090 | 1,163
Other European Union [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 7,086 | 7,706 | 7,370
Capital expenditure in tangible and intangible assets |  | 267 | 316 | 331
Rest of Europe [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 1,031 | 6,160 | 6,960
Capital expenditure in tangible and intangible assets |  | 538 | 387 | 460
Americas [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 4,546 | 4,406 | 5,397
Capital expenditure in tangible and intangible assets |  | 534 | 278 | 233
Asia [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 16,910 | 16,527 | 19,471
Capital expenditure in tangible and intangible assets |  | 1,782 | 898 | 1,978
Africa [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 36,155 | 35,385 | 39,812
Capital expenditure in tangible and intangible assets |  | 4,533 | 5,699 | 5,004
Other areas [Member] |  |  |  |
Disclosure Of Segmental Analysis [Line Items] |  |  |  |
Identifiable assets | [1] | 1,109 | 1,183 | 1,289
Capital expenditure in tangible and intangible assets |  | € 41 | € 13 | € 11
[1] | Includes assets directly associated with the generation of operating profit.

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