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Investments - Disclosure Of Fair Value Of The Assets Acquired Resulted In Fair Value (Detail) R$ in Millions	Nov. 30, 2017 BRL (R$)
Lepsa [member]
Disclosure of detailed information about business combination [line items]
Fair value, current	R$ 4
Fair value, non-current	428
Fair value, equity	432
Total	432
RME [member]
Disclosure of detailed information about business combination [line items]
Fair value, current	2
Fair value, non-current	428
Fair value, equity	430
Total	R$ 430

X

- Definition

The amount recognised as of the acquisition date for current assets acquired in a business combination. [Refer: Current assets; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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+ References

No definition available.

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- Definition

The amount recognised as of the acquisition date for net identifiable assets acquired or liabilities assumed in a business combination. [Refer: Business combinations [member]]

+ References

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- Definition

The amount of non-controlling interest in the acquiree recognised at the acquisition date for business combinations in which the acquirer holds less than 100 per cent of the equity interests in the acquiree at the acquisition date. [Refer: Business combinations [member]]

+ References

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- Definition

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+ References

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