Summary of Significant Accounting Policies - Principles of Consolidation and Segment Reporting - Additional Information (Details)	12 Months Ended
Nov. 30, 2021 segment
Consolidation, Less than Wholly Owned Subsidiary, parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of assets and liabilities of majority-owned subsidiaries included in consolidated financial statements	100.00%
Number of reportable segments	2
Minimum
Consolidation, Less than Wholly Owned Subsidiary, parent Ownership Interest, Effects of Changes, Net [Line Items]
Equity method investment, percentage of ownership	20.00%
Maximum
Consolidation, Less than Wholly Owned Subsidiary, parent Ownership Interest, Effects of Changes, Net [Line Items]
Equity method investment, percentage of ownership	50.00%
Cost or fair value method investment, percentage of ownership	20.00%

Cost or fair value method investment percentage for treatment.

No definition available.

Name:	snx_CostOrFairValueMethodInvestmentPercentageForTreatment
Namespace Prefix:	snx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Equity method investment percentage for treatment.

+ References

No definition available.

+ Details

Name:	snx_EquityMethodInvestmentPercentageForTreatment
Namespace Prefix:	snx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Majority owned subsidiary assets and liabilities percentage included in consolidated financial statements of parent.

+ References

No definition available.

+ Details

Name:	snx_MajorityOwnedSubsidiaryAssetsAndLiabilitiesPercentageIncludedInConsolidatedFinancialStatementsOfParent
Namespace Prefix:	snx_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestEffectsOfChangesNetLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: