XML 118 R96.htm IDEA: XBRL DOCUMENT v3.22.1

Financial Assets and Liabilities - Summary of Market Value of Senior Notes that are listed on Luxembourg Stock Exchange (Detail)	Dec. 31, 2021	Dec. 31, 2020
Senior notes due 2023 [member] | Cosan S.A. [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	100.26%	101.02%
Senior notes due 2024 [member] | Rumo S A [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage		104.17%
Senior notes due 2024 [member] | Cosan Limited [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage		103.22%
Senior notes due 2025[member] | Rumo S A [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	103.04%	105.96%
Senior notes due 2027 [member] | Cosan S.A. [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	103.79%	108.20%
Senior Notes Due 2028 [Member] | Rumo S A [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	103.42%	108.75%
Senior Notes Due 2029[Member] | Cosan S.A. [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	104.39%	110.05%
Senior Notes Due 2032 [Member] | Rumo S A [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	94.34%
Perpetual notes [member] | Cosan S.A. [member]
Disclosure of detailed information about borrowings [line items]
Senior Notes, quoted market price percentage	102.17%	102.88%

X

- Definition

The percentage of quoted market price of debt instruments.

+ References

No definition available.

+ Details

Name:	csan_DebtInstrumentQuotedMarketPricePercentage
Namespace Prefix:	csan_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBorrowingsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDueTwoThousandTwentyThreeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=csan_CosanSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDueTwoThousandAndTwentyFourMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=csan_RumoSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDueTwoThousandAndTwentyFourOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=csan_CosanLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDueTwoThousandAndTwentyFiveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDueTwoZeroTwoSevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDue2028Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDue2029Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_SeniorNotesDue2032Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=csan_PerpetualNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: