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35. INSURANCE (Details) R$ in Millions | 12 Months Ended
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Dec. 31, 2019 BRL (R$)
Companhia Energetica De Minas Gerais [Member] | Facilities In Buildings [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire |
Coverage period | Jan. 8, 2020 to Jan. 8, 2021 |
Amount insured | R$ 8,661 | [1]
Annual premium | R$ 2 | [1]
Cemig Geracao E Transmissao [Member] | Air Transport Aircraft [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fuselage |
Coverage period | April 29, 2019 to 29-Apr-20 |
Amount insured | R$ 4,385 | [1]
Annual premium | R$ 49 | [1]
Cemig Geracao E Transmissao [Member] | Air Transport Aircraft [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Third party |
Coverage period | April 29, 2019 to 29-Apr-20 |
Amount insured | R$ 14,000 | [1]
Cemig Geracao E Transmissao [Member] | Warehouse Stores [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire |
Coverage period | Nov. 2, 2019 to Nov. 2, 2020 |
Amount insured | R$ 20,771 | [1]
Annual premium | R$ 20 | [1]
Cemig Geracao E Transmissao [Member] | Buildings [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire |
Coverage period | Jan. 8, 2020 to Jan. 8, 2021 |
Amount insured | R$ 275,773 | [1]
Annual premium | R$ 75 | [1]
Cemig Geracao E Transmissao [Member] | Telecoms Equipment [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire | [2]
Coverage period | Jan. 8, 2019 to Jan. 8, 2020 | [2]
Amount insured | R$ 2,650 | [1],[2]
Annual premium | R$ 2 | [1],[2]
Cemig Geracao E Transmissao [Member] | Operational Risk [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Total | [3]
Coverage period | Dec. 7, 2019 to Dec. 7, 2020 | [3]
Amount insured | R$ 959,243 | [1],[3]
Annual premium | R$ 1,262 | [1],[3]
GASMIG [Member] | Gas Distribution Network Third Party [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Third party |
Coverage period | Dec. 15, 2019 to Dec. 15, 2020 |
Amount insured | R$ 60,000 | [1]
Annual premium | R$ 398 | [1]
GASMIG [Member] | Own Vehicle Fleet (Operation) [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Damage to third parties only |
Coverage period | Jul. 7, 2019 to Jul. 7, 2020 |
Amount insured | R$ 500 | [1]
Annual premium | R$ 3 | [1]
GASMIG [Member] | Own Vehicle Fleet Directors [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Full cover |
Coverage period | Oct. 25, 2019 to Oct. 25, 2020 |
Amount insured | R$ 100 | [1]
Annual premium | R$ 2 | [1]
GASMIG [Member] | Facilities Multirisk [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Robbery, theft and fire |
Coverage period | Jan. 1, 2020 to Jan. 1, 2021 |
Amount insured | R$ 41,374 | [1]
Annual premium | R$ 448 | [1]
Cemig Distribuicao [Member] | Warehouse Stores [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire |
Coverage period | Nov. 2, 2019 to Nov. 2, 2020 |
Amount insured | R$ 120,007 | [1]
Annual premium | R$ 117 | [1]
Cemig Distribuicao [Member] | Buildings [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire |
Coverage period | Jan. 8, 2019 to Jan. 8, 2020 |
Amount insured | R$ 744,134 | [1]
Annual premium | R$ 201 | [1]
Cemig Distribuicao [Member] | Telecoms Equipment [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fire | [2]
Amount insured | R$ 31,083 | [2]
Annual premium | R$ 28 | [2]
Cemig Distribuicao [Member] | Operational Risk [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Total | [3]
Coverage period | Dec. 7, 2019 to Dec. 7, 2020 | [3]
Amount insured | R$ 528,071 | [3]
Annual premium | R$ 695 | [3]
Cemig Distribuicao [Member] | Air Transport Aircraft Guimbal Equipment [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Fuselage |
Coverage period | April 29, 2019 to 29-Apr-20 |
Amount insured | R$ 3,370 | [1]
Annual premium | R$ 34 | [1]
Cemig Distribuicao [Member] | Air Transport Aircraft Guimbal Equipment [Member] |  |
Disclosure of types of insurance contracts [line items] |  |
Coverage | Third party |
Coverage period | April 29, 2019 to 29-Apr-20 |
Amount insured | R$ 14,000 | [1]
[1] | Amounts expressed in R$ '000 or US$'000.
[2] | Contracting of a new policy is in progress.
[3] | Maximum indemnity limit: R$ 231.

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- Definition The amount of premiums written, net of amounts reinsured with third parties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 85 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_85&doctype=Standard -URIDate 2019-03-27 + Details
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