XML 132 R125.htm IDEA: XBRL DOCUMENT
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Property, plant and equipment (Details 2) | 12 Months Ended
--- | ---
Dec. 31, 2017
Buildings [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 2%
Buildings [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 10%
Mineral exploration wells and plants [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | UOP
Refining and chemical plants [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 2%
Refining and chemical plants [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 17%
Gas pipelines and compression stations [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 2%
Gas pipelines and compression stations [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 12%
Power plants [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 5%
Other Plant And Machinery [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 6%
Other Plant And Machinery [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 12%
Industrial and commercial equipment [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 5%
Industrial and commercial equipment [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 25%
Other Property Plant And Equipment [Member] | Bottom Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 10%
Other Property Plant And Equipment [Member] | Top Of Range [Member] |
DisclosureOfPropertyPlantAndEquipmentExplanatoryLineItems [Line Items] |
Useful lives or depreciation rates, property, plant and equipment | 20%

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- Definition The useful lives or depreciation rates used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_c&doctype=Standard -URIDate 2017-03-09 + Details
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