The percentage of voting equity interests acquired in a business combination. [Refer: Business combinations [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2018-01-01
-Paragraph B64
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2018-03-01&anchor=para_B64_c&doctype=Appendix&seq=2
-URIDate 2018-03-16

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- Definition

The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 17
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_iii&doctype=Standard
-URIDate 2018-03-16

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 27
-IssueDate 2018-01-01
-Paragraph 16
-Subparagraph b
-Clause iii
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_iii&doctype=Standard
-URIDate 2018-03-16

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 12
-IssueDate 2018-01-01
-Paragraph 19B
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_19B_c&doctype=Standard
-URIDate 2018-03-16

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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.

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- Definition

The interest in the joint operation held by the entity acquired in a business combination.

+ References

No definition available.

+ Details

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- Definition

The number of gas-fired combined cycle power plants acquired by the entity during the period.

+ References

No definition available.

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- Definition

Represents the number of offshore concessions in which participating interests awarded.

+ References

No definition available.

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- Definition

The percentage of concession rights acquired in a business combination.

+ References

No definition available.

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- Definition

The proportion of ownership interest in a joint operation acquired by the entity during the period.

+ References

No definition available.

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- Definition

The proportion of ownership interest in a joint operation sold by the entity during the period.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of ownership interest in joint venture sold by the entity.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage of ownership interest in joint venture sold by the co-venturer.

+ References

No definition available.

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Changes in the Group structure - Main acquisitions and divestments (Details) - item						1 Months Ended
	Dec. 31, 2018	Sep. 26, 2018	Mar. 18, 2018	Mar. 15, 2018	Mar. 01, 2018	Jan. 31, 2018	Jul. 06, 2018
Main acquisitions and divestments
Number of gas-fired combined cycle power plants acquired		2
Direct Energie
Main acquisitions and divestments
Percentage of share capital acquired							73.04%
Cumulative percentage of interest held	100.00%
Martin Linge field
Main acquisitions and divestments
Percentage of interest in joint operation sold				51.00%
Garantiana Discovery
Main acquisitions and divestments
Percentage of interest in joint operation sold				40.00%
TotalErg joint venture
Main acquisitions and divestments
Percentage of interest in joint venture sold by the co-venturer						51.00%
Percentage of interest in joint venture sold						49.00%
Lapa field \| Transfer of rights in the Lapa and Iara Concessions in Brazil
Main acquisitions and divestments
Percentage of rights acquired						35.00%
Iara area \| Transfer of rights in the Lapa and Iara Concessions in Brazil
Main acquisitions and divestments
Percentage of rights acquired						22.50%
Waha Concessions \| Marathon Oil Libya Limited
Main acquisitions and divestments
Percentage of acquired entity's interest in joint operation					16.33%
Umm Shaif & Nasr and Lower Zakum concessions
Main acquisitions and divestments
Number of offshore concessions in which participating interests awarded			2
Umm Shaif & Nasr concession
Main acquisitions and divestments
Percentage of interest acquired			20.00%
Lower Zakum concession
Main acquisitions and divestments
Percentage of interest acquired			5.00%