Name:	baba_AccrualForFineImposedPursuantToAntiMonopolyLawCurrent
Namespace Prefix:	baba_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Number of consecutive years the Company is required to file a self-assessment and compliance report to the State Administration for Market Regulation of the PRC (the 'SAMR').

No definition available.

Name:	baba_AntiMonopolyInvestigationSelfAssessmentAndComplianceReportTerm
Namespace Prefix:	baba_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Fine imposed.

No definition available.

Name:	baba_FineImposed
Namespace Prefix:	baba_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.

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

Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349