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v3.10.0.1

Long-term assets - E.2.1. Accounting for property, plant and equipment (Details) | 12 Months Ended
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Dec. 31, 2018
Buildings |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 40 years
Bottom of range | Networks (including civil works) |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 5 years
Bottom of range | Other |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 2 years
Top of range | Networks (including civil works) |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 15 years
Top of range | Other |
Disclosure of detailed information about property, plant and equipment [line items] |
Estimated useful lives | 7 years

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
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Period Type: | duration

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- Definition Useful Lives Or Depreciation Rates, Property, Plant And Equipment, Period + References No definition available. + Details
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- Details
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Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |