XML 107 R85.htm IDEA: XBRL DOCUMENT
v3.22.1

Financial Assets and Liabilities - Summary of Changes in Loans, Borrowings and Debentures (Detail) - BRL (R$) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of detailed information about borrowings [abstract] |  |  |
Beginning Balance | R$ 42,249,460 | R$ 29,052,215 |
Raised | 12,548,547 | 10,336,257 |
Repayment of principal | (9,925,067) | (3,397,060) |
Payment of interest on loans, borrowings and debentures | (2,321,868) | (1,782,976) | R$ (1,384,184)
Interest, exchange rate and fair value | 3,107,965 | 8,041,024 |
Ending balance | R$ 45,659,037 | R$ 42,249,460 | R$ 29,052,215

X
- Definition Increase decrease through acquisitions, Borrowings + References No definition available. + Details
Name: | csan_IncreaseDecreaseThroughAcquisitionsBorrowings
Namespace Prefix: | csan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Increase (decrease) through net exchange differences, Borrowings + References No definition available. + Details
Name: | csan_IncreaseDecreaseThroughNetExchangeDifferencesBorrowings
Namespace Prefix: | csan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Payment of interest of loans borrowings and debentures. + References No definition available. + Details
Name: | csan_PaymentOfInterestOfLoansBorrowingsAndDebentures
Namespace Prefix: | csan_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_d&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration