3.22.2.2 html 7 80 1 true 6 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.abfunds.com/role/DocumentDocumentandEntityInformationElements000000 Document and Entity Information 1 false false R2.htm 000181 - Disclosure - Risk/Return Detail Data {Elements} - AB Ohio Portfolio Sheet http://www.abfunds.com/role/DisclosureRiskReturnDetailDataElementsABOhioPortfolio000181 Risk/Return Detail Data- AB Ohio Portfolio 2 false false All Reports Book All Reports [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010348Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010351Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010352Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010353Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010355Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010357Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010358Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010360Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000010361Member declared as a domainItemType element. abmif-20221005.xsd [dq-0541-Series-Id-Member-Not-Declared] Submission type 497 should have S000027380Member declared as a domainItemType element. abmif-20221005.xsd abmif-20221005.htm abmif-20221005.xsd abmif-20221005_cal.xml abmif-20221005_def.xml abmif-20221005_lab.xml abmif-20221005_pre.xml g1g12c59.jpg g1g16c63.jpg g1g19d95.jpg g1g19t59.jpg g1g20r22.jpg g1g22c48.jpg g1g31a51.jpg g1g49d54.jpg g1g67z55.jpg g1g70a28.jpg g1g71b29.jpg g1g71m70.jpg g1g78d41.jpg g1g78f52.jpg http://xbrl.sec.gov/dei/2021 http://xbrl.sec.gov/rr/2021 true true