XML 99 R92.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Customers, Traders and Power Transport Concession Holders - Summary of Terms of Advances from Clients (Detail) R$ in Millions, GWh in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2017 BRL (R$) GWh | Dec. 31, 2016 BRL (R$)
Disclosure Of Advances From Customers [line items] |  |
Advances from clients | R$ 233 | R$ 181
Cemig GT [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Advances from clients | R$ 233 | 181
Cemig GT [member] | BTG Pactual [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Specified period for billing | Jan. 2018 |
Index for adjusting prepaid amounts | 1.57% p.m. |
GWh deliverable | GWh | 137 |
Advances from clients | R$ 18 | R$ 181
Cemig GT [member] | BTG Pactual1 [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Specified period for billing | Jan. 2018 |
Index for adjusting prepaid amounts | 1.2% p.m. |
GWh deliverable | GWh | 172 |
Advances from clients | R$ 26 |
Cemig GT [member] | Deal Comercializadora [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Specified period for billing | Jan. 2018 |
Index for adjusting prepaid amounts | 1.2% p.m. |
GWh deliverable | GWh | 5 |
Advances from clients | R$ 1 |
Cemig GT [member] | White Martins Gases Industriais Ltda [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Specified period for billing | Feb. 2018 to Mar. 2019 |
Index for adjusting prepaid amounts | 124% of CDI |
GWh deliverable | GWh | 334 |
Advances from clients | R$ 146 |
Cemig GT [member] | White Martins Gases Industriais Ltda1 [member] |  |
Disclosure Of Advances From Customers [line items] |  |
Specified period for billing | Feb. 2018 to Jul. 2019 |
Index for adjusting prepaid amounts | 124% of CDI |
Advances from clients | R$ 42 |

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- Definition The amount of current payments received for goods or services to be provided in the future. [Refer: Advances received] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_55&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition Disclosure Of Advances From Customers [line items] + References No definition available. + Details
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- Definition Specified period for billing of advances received. + References No definition available. + Details
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- Details
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- Details
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- Details
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