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<xbrl xmlns="http://www.xbrl.org/2003/instance" xmlns:dei="http://xbrl.sec.gov/dei/2022" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:us-gaap="http://fasb.org/us-gaap/2022" xmlns:wba="http://walgreensbootsalliance.com/20230526" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:xlink="http://www.w3.org/1999/xlink"> |
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| | | <identifier scheme="http://www.sec.gov/CIK"> 0001618921 </identifier> |
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| <context id="duration_2023-05-26_to_2023-05-26_us-gaap-StatementClassOfStockAxis_wba-A2125NotesPayableDue2026Member"> |
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| | | <identifier scheme="http://www.sec.gov/CIK"> 0001618921 </identifier> |
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| <dei:EntityRegistrantName contextRef="duration_2023-05-26_to_2023-05-26"> WALGREENS BOOTS ALLIANCE, INC. </dei:EntityRegistrantName> |
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