XML 142 R135.htm IDEA: XBRL DOCUMENT v3.8.0.1

Loans, Financings and Debentures - Summary of Loans Financing and Debentures (Parenthetical) (Detail) - Banco do Brasil (Cemig GT) [member] - Debt in Foreign Currency [member] - Various [member]	12 Months Ended
	Dec. 31, 2017
Bottom of range [member]
Disclosure of detailed information about borrowings [line items]
Interest rate	2.00%
Libor plus spreadrate	0.81%
Top of range [member]
Disclosure of detailed information about borrowings [line items]
Interest rate	8.00%
Libor plus spreadrate	0.88%

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2017-01-01
-Paragraph 7
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-URIDate 2017-03-09

+ Details

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X

- 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

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- Definition

Libor plus spread rate.

+ References

No definition available.

+ Details

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- Details

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