The period for contractual fixed term for sub-concession contracts under financial commitment.

No definition available.

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- 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

No definition available.

+ Details

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- Definition

The amount of an estimated investments to be made for sub-concession contracts under financial commitment.

+ References

No definition available.

+ Details

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Balance Type:	credit
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- Definition

The amount of an estimated present value of financial commitment.

+ References

No definition available.

+ Details

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- Definition

The amount of investments at cost for sub-concession contracts under financial commitment.

+ References

No definition available.

+ Details

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- Definition

The amount of obligations value of an estimated investments for sub-concession contracts under financial commitment.

+ References

No definition available.

+ Details

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- Definition

The percentage of physical execution for sub-concession contracts under financial commitment.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Energy measure of oil and natural gas production reserves.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204
-Subsection Instruction 5

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1204
-Subsection Instruction 5

+ Details

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- Details

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- Details

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Namespace Prefix:
Data Type:	na
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Commitments (Detail) R$ in Thousands, MMBTU in Millions	12 Months Ended
Commitments (Detail) R$ in Thousands, MMBTU in Millions	Dec. 31, 2021 BRL (R$) MMBTU	Dec. 31, 2020 BRL (R$)	May 27, 2020 BRL (R$)
Comgas [member] \| Natural gas distribution [member]
Disclosure of detailed information about commitments [line items]
Financial commitment in an estimated present value	R$ 7,745,842
Rumo S.A. [member] \| Port elevation [member]
Disclosure of detailed information about commitments [line items]
Financial commitment in an estimated present value	340,000
Investments at cost	270,629	R$ 270,629
Rumo Malha Paulista S.A. [member]
Disclosure of detailed information about commitments [line items]
Estimated investments to be made for sub-concession contracts	6,100,000		R$ 6,100,000
Obligations of estimated investments for sub-concession contracts	R$ 3,000,000
Percentage of physical execution	16.00%
Rumo Malha Central S.A. [member]
Disclosure of detailed information about commitments [line items]
Estimated investments to be made for sub-concession contracts	R$ 645,573
Percentage of physical execution	65.00%	56.00%
Rumo Malha Central S.A. [member] \| Bottom of range [member]
Disclosure of detailed information about commitments [line items]
Contractual fixed term	1 year
Rumo Malha Central S.A. [member] \| Top of range [member]
Disclosure of detailed information about commitments [line items]
Contractual fixed term	3 years
Compass Gas e Energia [Member] \| Natural gas distribution [member]
Disclosure of detailed information about commitments [line items]
Contractual fixed term	10 years
Supply capacity committed \| MMBTU	120