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Assets And Liabilities Classified As Held For Sale; Profit (Loss) From Discontinued Operations - Summary of Changes in Assets and Liabilities Classified as Held for Sale (Parenthetical) (Detail) R$ in Millions	12 Months Ended
	Dec. 31, 2018 BRL (R$)
Disclosure of assets and liabilities classified as held for sale [abstract]
Net value of adjustment to fair value less costs of disposal	R$ (42)

X

- Definition

Adjustments for gains (losses) on change in fair value less costs of disposal.

+ References

No definition available.

+ Details

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X

- Definition

Disclosure of assets and liabilities classified as held for sale.

+ References

No definition available.

+ Details

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