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Investments In Associates And Joint Ventures, Other Investments And Non-Current Accounts Receivable - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Camcem [member]
Disclosure of detailed information about financial instruments [line items]
Percentage Of Total Assets	78.00%	76.00%
Percentage Of Total Liabilities	79.00%	77.00%
Associates and Joint Ventures [Member]
Disclosure of detailed information about financial instruments [line items]
Percentage Of Total Assets	68.00%	59.00%	53.00%

X

- Definition

Percentage of total assets.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of total liabilities.

+ References

No definition available.

+ 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 members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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X

- Details

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X

- Details

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Period Type: