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Provisions for employees' benefits - Additional Information (Details)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Fair value level 1
Provisions for employees' benefits
Percentage of plan assets	55.70%	53.76%
Fair value level 2
Provisions for employees' benefits
Percentage of plan assets	44.30%	46.24%

X

- Definition

The percentage of plan assets in total assets.

+ References

No definition available.

+ Details

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- 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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Period Type:	duration

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

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Namespace Prefix:
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Balance Type:
Period Type: