XML 105 R109.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Risks and contingencies (Details) | Jan. 30, 2015 lawsuit
--- | ---
Putative shareholder class action lawsuits filed |
Risks and contingencies |
Number of putative shareholder class action lawsuits filed | 7

X
- 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_LossContingenciesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 + Details
Name: | us-gaap_LossContingencyNewClaimsFiledNumber
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LitigationCaseAxis=baba_PutativeShareholderClassActionLawsuitsFiledInUnitedStatesDistrictCourtsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |