10-Q 1 mmm-20210930.htm 10-Q mmm-20210930
0000066740TRUEFALSEFALSE12-312021Q3P20YP1Y00000667402021-01-012021-09-300000066740us-gaap:CommonStockMemberexch:XCHI2021-01-012021-09-300000066740us-gaap:CommonStockMemberexch:XNYS2021-01-012021-09-300000066740mmm:Notes1500PercentDue2026Memberexch:XNYS2021-01-012021-09-300000066740mmm:Notes0375PercentDue2022Memberexch:XNYS2021-01-012021-09-300000066740mmm:Notes0950PercentDue2023Memberexch:XNYS2021-01-012021-09-300000066740exch:XNYSmmm:Notes1750PercentDue2030Member2021-01-012021-09-300000066740mmm:Notes1.500PercentDue2031Memberexch:XNYS2021-01-012021-09-30xbrli:shares00000667402021-09-30iso4217:USD00000667402021-07-012021-09-3000000667402020-07-012020-09-3000000667402020-01-012020-09-30iso4217:USDxbrli:shares00000667402020-12-3100000667402019-12-3100000667402020-09-300000066740srt:ScenarioPreviouslyReportedMember2020-07-012020-09-300000066740srt:ScenarioPreviouslyReportedMember2020-01-012020-09-300000066740srt:ScenarioPreviouslyReportedMember2020-12-310000066740srt:CumulativeEffectPeriodOfAdoptionAdjustmentMember2019-12-310000066740mmm:AbrasivesMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:AbrasivesMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:AbrasivesMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:AbrasivesMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:AutomotiveAftermarketMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:AutomotiveAftermarketMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:AutomotiveAftermarketMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:AutomotiveAftermarketMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ClosureAndMaskingSystemsMember2021-07-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ClosureAndMaskingSystemsMember2020-07-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ClosureAndMaskingSystemsMember2021-01-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ClosureAndMaskingSystemsMember2020-01-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ElectricalMarketsMember2021-07-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ElectricalMarketsMember2020-07-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ElectricalMarketsMember2021-01-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMembermmm:ElectricalMarketsMember2020-01-012020-09-300000066740mmm:IndustrialAdhesivesAndTapesMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:IndustrialAdhesivesAndTapesMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:IndustrialAdhesivesAndTapesMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:IndustrialAdhesivesAndTapesMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:PersonalSafetyMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:PersonalSafetyMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:PersonalSafetyMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:PersonalSafetyMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:RoofingGranulesMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:RoofingGranulesMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:RoofingGranulesMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:RoofingGranulesMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:OtherSafetyAndIndustrialMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:OtherSafetyAndIndustrialMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:OtherSafetyAndIndustrialMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:OtherSafetyAndIndustrialMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AdvancedMaterialsMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AdvancedMaterialsMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AdvancedMaterialsMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AdvancedMaterialsMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AutomotiveAndAerospaceMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AutomotiveAndAerospaceMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AutomotiveAndAerospaceMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:AutomotiveAndAerospaceMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:CommercialSolutionsMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:CommercialSolutionsMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:CommercialSolutionsMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:CommercialSolutionsMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:ElectronicsMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:ElectronicsMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:ElectronicsMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:ElectronicsMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:TransportationSafetyMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:TransportationSafetyMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:TransportationSafetyMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:TransportationSafetyMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:OtherTransportationAndElectronicsMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:OtherTransportationAndElectronicsMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:OtherTransportationAndElectronicsMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:OtherTransportationAndElectronicsMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:DrugDeliveryMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:DrugDeliveryMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:DrugDeliveryMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:DrugDeliveryMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:FoodSafetyMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:FoodSafetyMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:FoodSafetyMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:FoodSafetyMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:HealthInformationSystemsMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:HealthInformationSystemsMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:HealthInformationSystemsMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:HealthInformationSystemsMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:MedicalSolutionsMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:MedicalSolutionsMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:MedicalSolutionsMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:MedicalSolutionsMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:OralCareMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:OralCareMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:OralCareMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:OralCareMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:SeparationAndPurificationSciencesMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:SeparationAndPurificationSciencesMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:SeparationAndPurificationSciencesMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:SeparationAndPurificationSciencesMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembermmm:OtherHealthCareMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembermmm:OtherHealthCareMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:OtherHealthCareMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:OtherHealthCareMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMembermmm:ConsumerHealthAndSafetyMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMembermmm:ConsumerHealthAndSafetyMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembermmm:ConsumerHealthAndSafetyMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMembermmm:ConsumerHealthAndSafetyMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMembermmm:HomeCareMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMembermmm:HomeCareMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembermmm:HomeCareMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMembermmm:HomeCareMember2020-01-012020-09-300000066740mmm:HomeImprovementMembermmm:ConsumerSegmentMember2021-07-012021-09-300000066740mmm:HomeImprovementMembermmm:ConsumerSegmentMember2020-07-012020-09-300000066740mmm:HomeImprovementMembermmm:ConsumerSegmentMember2021-01-012021-09-300000066740mmm:HomeImprovementMembermmm:ConsumerSegmentMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMembermmm:StationeryAndOfficeMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMembermmm:StationeryAndOfficeMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembermmm:StationeryAndOfficeMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMembermmm:StationeryAndOfficeMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMembermmm:OtherConsumerMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMembermmm:OtherConsumerMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembermmm:OtherConsumerMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMembermmm:OtherConsumerMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMember2020-01-012020-09-300000066740us-gaap:CorporateNonSegmentMember2021-07-012021-09-300000066740us-gaap:CorporateNonSegmentMember2020-07-012020-09-300000066740us-gaap:CorporateNonSegmentMember2021-01-012021-09-300000066740us-gaap:CorporateNonSegmentMember2020-01-012020-09-300000066740us-gaap:IntersegmentEliminationMember2021-07-012021-09-300000066740us-gaap:IntersegmentEliminationMember2020-07-012020-09-300000066740us-gaap:IntersegmentEliminationMember2021-01-012021-09-300000066740us-gaap:IntersegmentEliminationMember2020-01-012020-09-300000066740srt:AmericasMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740srt:AsiaPacificMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMemberus-gaap:EMEAMember2021-07-012021-09-300000066740mmm:OtherUnallocatedGeographicalMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AmericasMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AsiaPacificMember2021-07-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMemberus-gaap:EMEAMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembersrt:AmericasMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMembersrt:AsiaPacificMember2021-07-012021-09-300000066740mmm:HealthCareSegmentMemberus-gaap:EMEAMember2021-07-012021-09-300000066740srt:AmericasMembermmm:ConsumerSegmentMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMembersrt:AsiaPacificMember2021-07-012021-09-300000066740mmm:ConsumerSegmentMemberus-gaap:EMEAMember2021-07-012021-09-300000066740srt:AmericasMemberus-gaap:CorporateNonSegmentMember2021-07-012021-09-300000066740us-gaap:CorporateNonSegmentMemberus-gaap:EMEAMember2021-07-012021-09-300000066740mmm:OtherUnallocatedGeographicalMemberus-gaap:CorporateNonSegmentMember2021-07-012021-09-300000066740srt:AmericasMemberus-gaap:IntersegmentEliminationMember2021-07-012021-09-300000066740srt:AsiaPacificMemberus-gaap:IntersegmentEliminationMember2021-07-012021-09-300000066740us-gaap:IntersegmentEliminationMemberus-gaap:EMEAMember2021-07-012021-09-300000066740srt:AmericasMember2021-07-012021-09-300000066740srt:AsiaPacificMember2021-07-012021-09-300000066740us-gaap:EMEAMember2021-07-012021-09-300000066740mmm:OtherUnallocatedGeographicalMember2021-07-012021-09-300000066740srt:AmericasMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740srt:AsiaPacificMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:SafetyAndIndustrialSegmentMemberus-gaap:EMEAMember2021-01-012021-09-300000066740mmm:OtherUnallocatedGeographicalMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AmericasMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AsiaPacificMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMemberus-gaap:EMEAMember2021-01-012021-09-300000066740mmm:TransportationAndElectronicsSegmentMembermmm:OtherUnallocatedGeographicalMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembersrt:AmericasMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembersrt:AsiaPacificMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMemberus-gaap:EMEAMember2021-01-012021-09-300000066740mmm:HealthCareSegmentMembermmm:OtherUnallocatedGeographicalMember2021-01-012021-09-300000066740srt:AmericasMembermmm:ConsumerSegmentMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMembersrt:AsiaPacificMember2021-01-012021-09-300000066740mmm:ConsumerSegmentMemberus-gaap:EMEAMember2021-01-012021-09-300000066740srt:AmericasMemberus-gaap:CorporateNonSegmentMember2021-01-012021-09-300000066740us-gaap:CorporateNonSegmentMemberus-gaap:EMEAMember2021-01-012021-09-300000066740srt:AmericasMemberus-gaap:IntersegmentEliminationMember2021-01-012021-09-300000066740srt:AsiaPacificMemberus-gaap:IntersegmentEliminationMember2021-01-012021-09-300000066740us-gaap:IntersegmentEliminationMemberus-gaap:EMEAMember2021-01-012021-09-300000066740mmm:OtherUnallocatedGeographicalMemberus-gaap:IntersegmentEliminationMember2021-01-012021-09-300000066740srt:AmericasMember2021-01-012021-09-300000066740srt:AsiaPacificMember2021-01-012021-09-300000066740us-gaap:EMEAMember2021-01-012021-09-300000066740mmm:OtherUnallocatedGeographicalMember2021-01-012021-09-300000066740srt:AmericasMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740srt:AsiaPacificMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMemberus-gaap:EMEAMember2020-07-012020-09-300000066740mmm:OtherUnallocatedGeographicalMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AmericasMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AsiaPacificMember2020-07-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMemberus-gaap:EMEAMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembersrt:AmericasMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembersrt:AsiaPacificMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMemberus-gaap:EMEAMember2020-07-012020-09-300000066740mmm:HealthCareSegmentMembermmm:OtherUnallocatedGeographicalMember2020-07-012020-09-300000066740srt:AmericasMembermmm:ConsumerSegmentMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembersrt:AsiaPacificMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMemberus-gaap:EMEAMember2020-07-012020-09-300000066740mmm:ConsumerSegmentMembermmm:OtherUnallocatedGeographicalMember2020-07-012020-09-300000066740mmm:OtherUnallocatedGeographicalMemberus-gaap:CorporateNonSegmentMember2020-07-012020-09-300000066740srt:AmericasMemberus-gaap:IntersegmentEliminationMember2020-07-012020-09-300000066740srt:AsiaPacificMemberus-gaap:IntersegmentEliminationMember2020-07-012020-09-300000066740us-gaap:IntersegmentEliminationMemberus-gaap:EMEAMember2020-07-012020-09-300000066740srt:AmericasMember2020-07-012020-09-300000066740srt:AsiaPacificMember2020-07-012020-09-300000066740us-gaap:EMEAMember2020-07-012020-09-300000066740mmm:OtherUnallocatedGeographicalMember2020-07-012020-09-300000066740srt:AmericasMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740srt:AsiaPacificMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:SafetyAndIndustrialSegmentMemberus-gaap:EMEAMember2020-01-012020-09-300000066740mmm:OtherUnallocatedGeographicalMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AmericasMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMembersrt:AsiaPacificMember2020-01-012020-09-300000066740mmm:TransportationAndElectronicsSegmentMemberus-gaap:EMEAMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembersrt:AmericasMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMembersrt:AsiaPacificMember2020-01-012020-09-300000066740mmm:HealthCareSegmentMemberus-gaap:EMEAMember2020-01-012020-09-300000066740srt:AmericasMembermmm:ConsumerSegmentMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMembersrt:AsiaPacificMember2020-01-012020-09-300000066740mmm:ConsumerSegmentMemberus-gaap:EMEAMember2020-01-012020-09-300000066740srt:AmericasMemberus-gaap:CorporateNonSegmentMember2020-01-012020-09-300000066740srt:AmericasMemberus-gaap:IntersegmentEliminationMember2020-01-012020-09-300000066740srt:AsiaPacificMemberus-gaap:IntersegmentEliminationMember2020-01-012020-09-300000066740us-gaap:IntersegmentEliminationMemberus-gaap:EMEAMember2020-01-012020-09-300000066740srt:AmericasMember2020-01-012020-09-300000066740srt:AsiaPacificMember2020-01-012020-09-300000066740us-gaap:EMEAMember2020-01-012020-09-300000066740mmm:OtherUnallocatedGeographicalMember2020-01-012020-09-300000066740country:US2021-07-012021-09-300000066740country:US2020-07-012020-09-300000066740country:US2021-01-012021-09-300000066740country:US2020-01-012020-09-30mmm:businessAcquired00000667402020-01-012020-12-31mmm:businessDivested0000066740mmm:SafetyAndIndustrialSegmentMember2020-12-310000066740mmm:TransportationAndElectronicsSegmentMember2020-12-310000066740mmm:HealthCareSegmentMember2020-12-310000066740mmm:ConsumerSegmentMember2020-12-310000066740mmm:SafetyAndIndustrialSegmentMember2021-09-300000066740mmm:TransportationAndElectronicsSegmentMember2021-09-300000066740mmm:HealthCareSegmentMember2021-09-300000066740mmm:ConsumerSegmentMember2021-09-300000066740us-gaap:CustomerRelatedIntangibleAssetsMember2021-09-300000066740us-gaap:CustomerRelatedIntangibleAssetsMember2020-12-310000066740us-gaap:PatentsMember2021-09-300000066740us-gaap:PatentsMember2020-12-310000066740us-gaap:TechnologyBasedIntangibleAssetsMember2021-09-300000066740us-gaap:TechnologyBasedIntangibleAssetsMember2020-12-310000066740us-gaap:TrademarksAndTradeNamesMember2021-09-300000066740us-gaap:TrademarksAndTradeNamesMember2020-12-310000066740us-gaap:OtherIntangibleAssetsMember2021-09-300000066740us-gaap:OtherIntangibleAssetsMember2020-12-310000066740srt:MinimumMember2021-01-012021-09-30mmm:position0000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2020-10-012020-12-310000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2021-01-012021-03-310000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2021-04-012021-06-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2021-07-012021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMember2021-01-012021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMembersrt:MinimumMember2021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMembersrt:MaximumMember2021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMemberus-gaap:CostOfSalesMember2021-01-012021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMemberus-gaap:SellingGeneralAndAdministrativeExpensesMember2021-01-012021-09-300000066740mmm:OperationalMarketingCapabilityRestructuringMembermmm:ResearchDevelopmentAndRelatedExpensesMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMembermmm:TransportationAndElectronicsSegmentMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMembermmm:HealthCareSegmentMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMembermmm:ConsumerSegmentMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMemberus-gaap:CorporateNonSegmentMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2020-12-310000066740us-gaap:EmployeeSeveranceMembermmm:OperationalMarketingCapabilityRestructuringMember2021-09-300000066740mmm:DivestitureRelatedRestrucutringMemberus-gaap:CorporateNonSegmentMember2020-04-012020-06-300000066740us-gaap:EmployeeSeveranceMembermmm:DivestitureRelatedRestrucutringMember2020-12-310000066740mmm:AssetRelatedAndOtherRestructuringMembermmm:DivestitureRelatedRestrucutringMember2020-12-310000066740mmm:DivestitureRelatedRestrucutringMember2020-12-310000066740us-gaap:EmployeeSeveranceMembermmm:DivestitureRelatedRestrucutringMember2021-01-012021-09-300000066740mmm:AssetRelatedAndOtherRestructuringMembermmm:DivestitureRelatedRestrucutringMember2021-01-012021-09-300000066740mmm:DivestitureRelatedRestrucutringMember2021-01-012021-09-300000066740us-gaap:EmployeeSeveranceMembermmm:DivestitureRelatedRestrucutringMember2021-09-300000066740mmm:AssetRelatedAndOtherRestructuringMembermmm:DivestitureRelatedRestrucutringMember2021-09-300000066740mmm:DivestitureRelatedRestrucutringMember2021-09-300000066740mmm:COVID19PandemicMember2020-04-012020-06-300000066740us-gaap:EmployeeSeveranceMembermmm:COVID19PandemicMember2020-12-310000066740us-gaap:EmployeeSeveranceMembermmm:COVID19PandemicMember2021-01-012021-03-310000066740us-gaap:EmployeeSeveranceMembermmm:COVID19PandemicMember2021-03-310000066740mmm:FixedRateMediumTermNoteDue2022Member2021-01-012021-03-3100000667402021-01-012021-03-3100000667402021-04-012021-06-3000000667402020-04-012020-06-3000000667402020-01-012020-03-3100000667402021-06-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2021-06-300000066740us-gaap:RetainedEarningsMember2021-06-300000066740us-gaap:TreasuryStockCommonMember2021-06-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-06-300000066740us-gaap:NoncontrollingInterestMember2021-06-300000066740us-gaap:RetainedEarningsMember2021-07-012021-09-300000066740us-gaap:NoncontrollingInterestMember2021-07-012021-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-07-012021-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2021-07-012021-09-300000066740us-gaap:TreasuryStockCommonMember2021-07-012021-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2021-09-300000066740us-gaap:RetainedEarningsMember2021-09-300000066740us-gaap:TreasuryStockCommonMember2021-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-09-300000066740us-gaap:NoncontrollingInterestMember2021-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2020-12-310000066740us-gaap:RetainedEarningsMember2020-12-310000066740us-gaap:TreasuryStockCommonMember2020-12-310000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-12-310000066740us-gaap:NoncontrollingInterestMember2020-12-310000066740us-gaap:RetainedEarningsMember2021-01-012021-09-300000066740us-gaap:NoncontrollingInterestMember2021-01-012021-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2021-01-012021-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2021-01-012021-09-300000066740us-gaap:TreasuryStockCommonMember2021-01-012021-09-3000000667402020-06-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2020-06-300000066740us-gaap:RetainedEarningsMember2020-06-300000066740us-gaap:TreasuryStockCommonMember2020-06-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-06-300000066740us-gaap:NoncontrollingInterestMember2020-06-300000066740us-gaap:RetainedEarningsMember2020-07-012020-09-300000066740us-gaap:NoncontrollingInterestMember2020-07-012020-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-07-012020-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2020-07-012020-09-300000066740us-gaap:TreasuryStockCommonMember2020-07-012020-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2020-09-300000066740us-gaap:RetainedEarningsMember2020-09-300000066740us-gaap:TreasuryStockCommonMember2020-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-09-300000066740us-gaap:NoncontrollingInterestMember2020-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2019-12-310000066740us-gaap:RetainedEarningsMember2019-12-310000066740us-gaap:TreasuryStockCommonMember2019-12-310000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2019-12-310000066740us-gaap:NoncontrollingInterestMember2019-12-310000066740us-gaap:RetainedEarningsMember2020-01-012020-09-300000066740us-gaap:NoncontrollingInterestMember2020-01-012020-09-300000066740us-gaap:AccumulatedOtherComprehensiveIncomeMember2020-01-012020-09-300000066740us-gaap:CommonStockIncludingAdditionalPaidInCapitalMember2020-01-012020-09-300000066740us-gaap:TreasuryStockCommonMember2020-01-012020-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2021-06-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-06-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-06-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2021-07-012021-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-07-012021-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-07-012021-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2021-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2020-12-310000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-12-310000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-12-310000066740us-gaap:AccumulatedTranslationAdjustmentMember2021-01-012021-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2021-01-012021-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2020-06-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-06-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-06-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2020-07-012020-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-07-012020-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-07-012020-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2020-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-09-300000066740us-gaap:AccumulatedTranslationAdjustmentMember2019-12-310000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2019-12-310000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2019-12-310000066740us-gaap:AccumulatedTranslationAdjustmentMember2020-01-012020-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMember2020-01-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember2021-07-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember2020-07-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember2021-01-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetTransitionAssetObligationMember2020-01-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2021-07-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2020-07-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2021-01-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember2020-01-012020-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-07-012021-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-07-012020-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-01-012021-09-300000066740us-gaap:AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermmm:AccumulatedDefinedBenefitPlansAdjustmentSettlementAndCurtailmentPortionAttributableToParentMember2021-07-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermmm:AccumulatedDefinedBenefitPlansAdjustmentSettlementAndCurtailmentPortionAttributableToParentMember2020-07-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermmm:AccumulatedDefinedBenefitPlansAdjustmentSettlementAndCurtailmentPortionAttributableToParentMember2021-01-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMembermmm:AccumulatedDefinedBenefitPlansAdjustmentSettlementAndCurtailmentPortionAttributableToParentMember2020-01-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-07-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-07-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2021-01-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMemberus-gaap:AccumulatedDefinedBenefitPlansAdjustmentMember2020-01-012020-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-07-012021-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-07-012020-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-01-012021-09-300000066740us-gaap:AccumulatedGainLossNetCashFlowHedgeParentMemberus-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-07-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-07-012020-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2021-01-012021-09-300000066740us-gaap:ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember2020-01-012020-09-30xbrli:pure0000066740us-gaap:CorporateDebtSecuritiesMember2021-09-300000066740us-gaap:CorporateDebtSecuritiesMember2020-12-310000066740us-gaap:CommercialPaperMember2021-09-300000066740us-gaap:CommercialPaperMember2020-12-310000066740us-gaap:CertificatesOfDepositMember2021-09-300000066740us-gaap:CertificatesOfDepositMember2020-12-310000066740us-gaap:USTreasurySecuritiesMember2021-09-300000066740us-gaap:USTreasurySecuritiesMember2020-12-310000066740us-gaap:USStatesAndPoliticalSubdivisionsMember2021-09-300000066740us-gaap:USStatesAndPoliticalSubdivisionsMember2020-12-310000066740mmm:FixedRateMediumTermNoteDue2022Member2021-03-012021-03-310000066740mmm:FixedRateMediumTermNoteDue2022Member2021-03-310000066740us-gaap:InterestRateSwapMember2021-09-300000066740mmm:FloatingRateRegisteredNoteDue2049Member2021-09-300000066740us-gaap:LondonInterbankOfferedRateLIBORMembermmm:FloatingRateRegisteredNoteDue2050Member2021-09-300000066740mmm:FixedRateRegisteredNoteDue2049Member2021-03-310000066740mmm:FixedRateRegisteredNoteDue2050Member2021-03-310000066740us-gaap:CommercialPaperMember2020-12-310000066740us-gaap:CommercialPaperMember2021-09-300000066740country:USus-gaap:PensionPlansDefinedBenefitMember2021-07-012021-09-300000066740country:USus-gaap:PensionPlansDefinedBenefitMember2020-07-012020-09-300000066740us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2021-07-012021-09-300000066740us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2020-07-012020-09-300000066740us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-07-012021-09-300000066740us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-07-012020-09-300000066740country:USus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-09-300000066740country:USus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-09-300000066740us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2021-01-012021-09-300000066740us-gaap:ForeignPlanMemberus-gaap:PensionPlansDefinedBenefitMember2020-01-012020-09-300000066740us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2021-01-012021-09-300000066740us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember2020-01-012020-09-300000066740us-gaap:PensionPlansDefinedBenefitMember2021-01-012021-09-300000066740mmm:PensionAndOtherPostretirementPlansDefinedBenefitMembersrt:MaximumMember2021-09-300000066740us-gaap:CashFlowHedgingMember2021-09-300000066740us-gaap:CashFlowHedgingMembermmm:InterestRateSwapAndTreasuryLockInAggregateMember2021-09-300000066740us-gaap:CashFlowHedgingMember2021-01-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2021-07-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2020-07-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2021-01-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2020-01-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:CashFlowHedgingMember2021-07-012021-09-300000066740us-gaap:CashFlowHedgingMember2020-07-012020-09-300000066740us-gaap:CashFlowHedgingMember2020-01-012020-09-300000066740us-gaap:LondonInterbankOfferedRateLIBORMembermmm:FloatingRateRegisteredNoteDue2049Member2021-09-300000066740us-gaap:FairValueHedgingMembermmm:ShortTermBorrowingsAndCurrentPortionOfLongTermDebtMember2021-09-300000066740us-gaap:FairValueHedgingMembermmm:ShortTermBorrowingsAndCurrentPortionOfLongTermDebtMember2020-12-310000066740us-gaap:FairValueHedgingMemberus-gaap:LongTermDebtMember2021-09-300000066740us-gaap:FairValueHedgingMemberus-gaap:LongTermDebtMember2020-12-310000066740us-gaap:FairValueHedgingMember2021-09-300000066740us-gaap:FairValueHedgingMember2020-12-31iso4217:EUR0000066740us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeForwardMember2021-09-300000066740us-gaap:NetInvestmentHedgingMembermmm:ForeignCurrencyDenominatedDebtMember2021-09-300000066740us-gaap:NetInvestmentHedgingMembermmm:ForeignCurrencyDenominatedDebtMember2021-07-012021-09-300000066740us-gaap:NetInvestmentHedgingMembermmm:ForeignCurrencyDenominatedDebtMember2020-07-012020-09-300000066740us-gaap:NetInvestmentHedgingMembermmm:ForeignCurrencyDenominatedDebtMember2021-01-012021-09-300000066740us-gaap:NetInvestmentHedgingMembermmm:ForeignCurrencyDenominatedDebtMember2020-01-012020-09-300000066740us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeForwardMember2021-07-012021-09-300000066740us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeForwardMember2020-07-012020-09-300000066740us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeForwardMember2021-01-012021-09-300000066740us-gaap:NetInvestmentHedgingMemberus-gaap:ForeignExchangeForwardMember2020-01-012020-09-300000066740us-gaap:NetInvestmentHedgingMember2021-07-012021-09-300000066740us-gaap:NetInvestmentHedgingMember2020-07-012020-09-300000066740us-gaap:NetInvestmentHedgingMember2021-01-012021-09-300000066740us-gaap:NetInvestmentHedgingMember2020-01-012020-09-300000066740us-gaap:CostOfSalesMember2021-07-012021-09-300000066740us-gaap:CostOfSalesMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMember2020-07-012020-09-300000066740us-gaap:CostOfSalesMember2021-01-012021-09-300000066740us-gaap:CostOfSalesMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMember2020-01-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:ForeignExchangeContractMember2021-07-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:ForeignExchangeContractMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2020-07-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:ForeignExchangeContractMember2021-01-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:ForeignExchangeContractMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:ForeignExchangeContractMember2020-01-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:CashFlowHedgingMemberus-gaap:CostOfSalesMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:CashFlowHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-07-012020-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:CostOfSalesMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:FairValueHedgingMemberus-gaap:InterestRateSwapMember2020-01-012020-09-300000066740us-gaap:CostOfSalesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-07-012021-09-300000066740us-gaap:CostOfSalesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2020-07-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-07-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2020-07-012020-09-300000066740us-gaap:CostOfSalesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-01-012021-09-300000066740us-gaap:CostOfSalesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2020-01-012020-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-01-012021-09-300000066740us-gaap:OtherOperatingIncomeExpenseMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2020-01-012020-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMembermmm:CurrentBalanceSheetLocationMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMembermmm:NoncurrentBalanceSheetLocationMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMembermmm:CurrentBalanceSheetLocationMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMemberus-gaap:OtherCurrentAssetsMember2021-09-300000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMembermmm:NoncurrentBalanceSheetLocationMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:InterestRateSwapMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMemberus-gaap:OtherNoncurrentLiabilitiesMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMember2021-09-300000066740us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMembermmm:CurrentBalanceSheetLocationMember2021-09-300000066740us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2021-09-300000066740us-gaap:NondesignatedMember2021-09-300000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMembermmm:CurrentBalanceSheetLocationMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherCurrentAssetsMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMembermmm:NoncurrentBalanceSheetLocationMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentAssetsMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:OtherNoncurrentLiabilitiesMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMembermmm:CurrentBalanceSheetLocationMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMemberus-gaap:OtherCurrentAssetsMember2020-12-310000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:DesignatedAsHedgingInstrumentMemberus-gaap:InterestRateSwapMember2020-12-310000066740us-gaap:DesignatedAsHedgingInstrumentMember2020-12-310000066740us-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMembermmm:CurrentBalanceSheetLocationMember2020-12-310000066740us-gaap:NondesignatedMemberus-gaap:OtherCurrentAssetsMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:OtherCurrentLiabilitiesMemberus-gaap:NondesignatedMemberus-gaap:ForeignExchangeContractMember2020-12-310000066740us-gaap:NondesignatedMember2020-12-310000066740us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:FairValueInputsLevel3Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2021-09-300000066740us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2021-09-300000066740us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:FairValueInputsLevel3Memberus-gaap:CorporateDebtSecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:FairValueInputsLevel3Memberus-gaap:CommercialPaperMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:CertificatesOfDepositMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel1Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:USTreasurySecuritiesMemberus-gaap:FairValueInputsLevel3Memberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:FairValueInputsLevel3Memberus-gaap:USStatesAndPoliticalSubdivisionsMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:FairValueInputsLevel3Memberus-gaap:ForeignExchangeContractMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueInputsLevel1Memberus-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMemberus-gaap:FairValueInputsLevel2Member2020-12-310000066740us-gaap:FairValueInputsLevel3Memberus-gaap:InterestRateSwapMemberus-gaap:FairValueMeasurementsRecurringMember2020-12-310000066740us-gaap:FairValueMeasurementsNonrecurringMember2021-07-012021-09-300000066740us-gaap:FairValueMeasurementsNonrecurringMember2021-01-012021-09-300000066740us-gaap:FairValueMeasurementsNonrecurringMember2020-01-012020-03-310000066740us-gaap:FairValueMeasurementsNonrecurringMember2020-07-012020-09-300000066740us-gaap:CarryingReportedAmountFairValueDisclosureMember2021-09-300000066740us-gaap:EstimateOfFairValueFairValueDisclosureMember2021-09-300000066740us-gaap:CarryingReportedAmountFairValueDisclosureMember2020-12-310000066740us-gaap:EstimateOfFairValueFairValueDisclosureMember2020-12-31mmm:plaintiff0000066740mmm:RespiratorMaskAsbestosLitigationMember2021-01-012021-09-300000066740mmm:RespiratorMaskAsbestosLitigationMember2020-01-012020-12-31mmm:casemmm:lawsuit0000066740mmm:RespiratorMaskAsbestosLitigationMember2018-01-012018-12-310000066740mmm:StateCourtOfCaliforniaMembermmm:RespiratorMaskAsbestosLitigationMember2018-01-012018-12-310000066740mmm:StateCourtOfKentuckyMembermmm:RespiratorMaskAsbestosLitigationMember2018-04-012018-04-300000066740mmm:KentuckyAndWestVirginiaMembermmm:RespiratorMaskAsbestosLitigationMember2019-03-012019-04-30mmm:party0000066740mmm:RespiratorMaskAsbestosLitigationWestVirginiaMember2021-09-300000066740mmm:RespiratorMaskAsbestosLitigationMember2019-01-012019-03-310000066740mmm:RespiratorMaskAsbestosLitigationMember2021-09-300000066740mmm:RespiratorMaskAsbestosLitigationAearoMember2021-09-300000066740mmm:RespiratorMaskAsbestosLitigationAearoMember2020-04-012020-06-300000066740mmm:RespiratorMaskAsbestosLitigationAearoMember2021-01-012021-09-300000066740mmm:EnvironmentalMattersRegulatoryActivitiesMember2021-01-012021-09-300000066740mmm:ZwijndrechtSiteMember2021-09-300000066740mmm:ZwijndrechtSiteMember2021-09-012021-09-30mmm:bill0000066740mmm:EnvironmentalMattersRegulatoryActivitiesMemberstpr:CAus-gaap:SubsequentEventMember2021-10-012021-10-310000066740mmm:DecaturAlabamaPlantMembermmm:EnvironmentalMattersLitigationMember2021-01-012021-09-30mmm:localWaterWork0000066740stpr:ALmmm:EnvironmentalMattersLitigationMember2015-10-012015-10-310000066740stpr:ALmmm:EnvironmentalMattersLitigationMember2019-04-012019-04-30mmm:individual0000066740srt:MinimumMembermmm:StateCourtOfLawrenceCountyAlabamaMembermmm:EnvironmentalMattersLitigationMember2016-08-012016-08-310000066740mmm:StateCourtOfLawrenceCountyAlabamaMembermmm:EnvironmentalMattersLitigationMember2021-01-012021-09-300000066740mmm:EnvironmentalMattersLitigationMembermmm:U.s.DistrictCourtForNorthernDistrictOfAlabamaMember2021-01-012021-09-30mmm:closedMunicipalLandfill0000066740mmm:DecaturAlabamaPlantMembermmm:EnvironmentalMattersLitigationMember2019-07-012019-07-310000066740mmm:CityOfDecaturDecaturUtilitiesAndMorganCountyMemberus-gaap:SubsequentEventMember2021-10-310000066740mmm:CityOfLakeElmoMembersrt:MaximumMembermmm:EnvironmentalMattersLitigationMember2019-04-012019-04-300000066740stpr:MNmmm:EnvironmentalMattersLitigationMember2018-02-012018-02-280000066740stpr:MNmmm:EnvironmentalMattersLitigationMember2018-01-012018-03-31mmm:recommendedOption0000066740stpr:MNmmm:EnvironmentalMattersLitigationMember2021-01-012021-09-300000066740mmm:StateCourtOfNewYorkStateMembermmm:EnvironmentalMattersLitigationMember2021-01-012021-09-300000066740stpr:NJmmm:EnvironmentalMattersLitigationMember2019-03-012019-03-31mmm:facility0000066740mmm:SalemCountyMembermmm:EnvironmentalMattersLitigationMember2019-03-012019-03-310000066740stpr:NJmmm:EnvironmentalMattersLitigationMember2020-06-012020-06-300000066740stpr:NJmmm:EnvironmentalMattersLitigationMember2019-05-310000066740stpr:NHmmm:EnvironmentalMattersLitigationMember2019-05-012019-05-310000066740stpr:NHmmm:EnvironmentalMattersLitigationMember2019-05-310000066740stpr:VTmmm:EnvironmentalMattersLitigationMember2019-06-012019-06-300000066740stpr:VTmmm:EnvironmentalMattersLitigationMember2019-06-300000066740stpr:MImmm:EnvironmentalMattersLitigationMember2020-08-012020-08-310000066740mmm:EnvironmentalMattersLitigationMembermmm:UsFederalCourtOfMichiganMember2020-08-012020-08-310000066740mmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMember2021-01-012021-09-300000066740mmm:USJudicialPanelOnMultidistrictLitigationMembermmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMember2021-02-012021-02-280000066740mmm:USJudicialPanelOnMultidistrictLitigationMembermmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMemberus-gaap:SubsequentEventMember2021-10-012021-10-310000066740mmm:VariousStateCourtsMembermmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMember2019-06-012019-06-300000066740mmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMembermmm:FederalCourtMember2021-09-300000066740mmm:VariousStateCourtsMembermmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMember2021-09-300000066740mmm:VariousStateCourtsMembermmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMember2021-01-012021-09-30mmm:subsidiary0000066740mmm:EnvironmentalMattersAqueousFilmFormingFoamLitigationMembermmm:StateCourtOfWisconsinMember2020-04-012020-04-300000066740mmm:UsDistrictCourtOfNewYorkStateMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740mmm:UsDistrictCourtOfNewYorkStateMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-07-012021-07-310000066740mmm:USDistrictCourtOfEasternDistrictOfNewYorkMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-09-300000066740stpr:MImmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740stpr:MImmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2019-12-012019-12-31mmm:company0000066740stpr:MImmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2020-02-012020-02-290000066740stpr:MImmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2020-03-012020-03-310000066740mmm:AlabamaAndGeorgiaMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740mmm:CitiesDownstreamCoosaRiverMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740mmm:FederalCourtMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-30mmm:waterProvider0000066740mmm:StateCourtOfCaliforniaMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2020-12-012020-12-310000066740stpr:DEmmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740stpr:NJmmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-30mmm:perfluorinatedMaterial0000066740mmm:DecaturAlabamaPlantMembermmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-30mmm:defendant0000066740srt:MinimumMemberstpr:NJmmm:EnvironmentalMattersOtherEnvironmentalLitigationMember2021-01-012021-09-30mmm:mile0000066740stpr:NJmmm:EnvironmentalMattersOtherEnvironmentalLitigationMember2021-01-012021-09-300000066740stpr:NJmmm:EnvironmentalMattersOtherEnvironmentalLitigationMember2018-07-012018-07-31mmm:chemical0000066740mmm:EnvironmentalRemediationRegulatoryActivitiesAndLitigationMember2021-09-300000066740mmm:EnvironmentalMattersOtherPfcRelatedEnvironmentalLitigationMember2021-01-012021-09-300000066740mmm:EnvironmentalMattersOtherEnvironmentalLitigationMember2021-09-300000066740us-gaap:EnvironmentalRemediationMember2021-09-300000066740us-gaap:EnvironmentalRemediationMember2021-01-012021-09-300000066740mmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-01-012021-09-300000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2020-12-012020-12-310000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-04-012021-04-300000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMembersrt:MaximumMember2021-04-012021-04-300000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-05-012021-06-300000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-06-012021-06-300000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMemberus-gaap:SubsequentEventMember2021-10-012021-10-310000066740mmm:MultidistrictLitigationMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMemberus-gaap:SubsequentEventMember2021-10-31mmm:wave0000066740mmm:StateCourtMembermmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-01-012021-09-300000066740mmm:ProductLiabilityDualEndedCombatArmsEarplugsMember2021-09-300000066740mmm:ProductLiabilityBairHuggerMember2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMembercountry:CA2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMembersrt:MinimumMember2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMembercountry:US2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMembermmm:MultidistrictLitigationMember2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMembermmm:StateCourtMember2021-01-012021-09-300000066740mmm:JacksonCountyMissouriMembermmm:ProductLiabilityBairHuggerAndMedicalMalpracticeClaimsMember2020-02-290000066740mmm:HidalgoCountyTexasMembermmm:ProductLiabilityBairHuggerAndMedicalMalpracticeClaimsMember2021-09-300000066740mmm:ProductLiabilityBairHuggerMembermmm:UsDistrictCourtForDistrictOfMinnesotaMember2021-01-012021-09-300000066740mmm:ProductLiabilityBairHuggerMember2021-09-300000066740mmm:SecuritiesLitigationMembermmm:UsDistrictCourtForDistrictOfMinnesotaMember2019-11-012019-12-310000066740mmm:FederalFalseClaimsActQuiTamLitigationMember2011-12-310000066740mmm:FederalFalseClaimsActQuiTamLitigationMember2021-09-30mmm:employee0000066740mmm:FederalFalseClaimsActQuiTamLitigationMember2021-01-012021-09-300000066740mmm:GodeckeCaseMembermmm:FederalFalseClaimsActQuiTamLitigationMember2021-09-300000066740mmm:LongTermIncentivePlanMember2021-05-012021-05-310000066740mmm:LongTermIncentivePlanMember2021-09-30mmm:age0000066740us-gaap:SellingGeneralAndAdministrativeExpensesMember2021-07-012021-09-300000066740us-gaap:SellingGeneralAndAdministrativeExpensesMember2020-07-012020-09-300000066740us-gaap:SellingGeneralAndAdministrativeExpensesMember2021-01-012021-09-300000066740us-gaap:SellingGeneralAndAdministrativeExpensesMember2020-01-012020-09-300000066740mmm:ResearchDevelopmentAndRelatedExpensesMember2021-07-012021-09-300000066740mmm:ResearchDevelopmentAndRelatedExpensesMember2020-07-012020-09-300000066740mmm:ResearchDevelopmentAndRelatedExpensesMember2021-01-012021-09-300000066740mmm:ResearchDevelopmentAndRelatedExpensesMember2020-01-012020-09-300000066740srt:MinimumMemberus-gaap:EmployeeStockOptionMember2021-01-012021-09-300000066740us-gaap:EmployeeStockOptionMembersrt:MaximumMember2021-01-012021-09-300000066740us-gaap:EmployeeStockOptionMember2021-01-012021-09-300000066740us-gaap:EmployeeStockOptionMember2021-09-300000066740us-gaap:EmployeeStockOptionMember2020-01-012020-09-300000066740mmm:RestrictedStockAndRestrictedStockUnitsMember2020-12-310000066740mmm:RestrictedStockAndRestrictedStockUnitsMember2021-01-012021-09-300000066740mmm:RestrictedStockAndRestrictedStockUnitsMember2021-09-300000066740mmm:RestrictedStockAndRestrictedStockUnitsMember2020-01-012020-09-300000066740us-gaap:PerformanceSharesMember2021-01-012021-09-300000066740srt:MinimumMemberus-gaap:PerformanceSharesMember2021-01-012021-09-300000066740us-gaap:PerformanceSharesMembersrt:MaximumMember2021-01-012021-09-300000066740us-gaap:PerformanceSharesMember2020-12-310000066740us-gaap:PerformanceSharesMember2021-09-300000066740us-gaap:PerformanceSharesMember2020-01-012020-09-30mmm:segment0000066740us-gaap:OperatingSegmentsMembermmm:SafetyAndIndustrialSegmentMember2021-07-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:SafetyAndIndustrialSegmentMember2020-07-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:SafetyAndIndustrialSegmentMember2021-01-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:SafetyAndIndustrialSegmentMember2020-01-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:TransportationAndElectronicsSegmentMember2021-07-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:TransportationAndElectronicsSegmentMember2020-07-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:TransportationAndElectronicsSegmentMember2021-01-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:TransportationAndElectronicsSegmentMember2020-01-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:HealthCareSegmentMember2021-07-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:HealthCareSegmentMember2020-07-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:HealthCareSegmentMember2021-01-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:HealthCareSegmentMember2020-01-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:ConsumerSegmentMember2021-07-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:ConsumerSegmentMember2020-07-012020-09-300000066740us-gaap:OperatingSegmentsMembermmm:ConsumerSegmentMember2021-01-012021-09-300000066740us-gaap:OperatingSegmentsMembermmm:ConsumerSegmentMember2020-01-012020-09-300000066740us-gaap:OperatingSegmentsMember2021-07-012021-09-300000066740us-gaap:OperatingSegmentsMember2020-07-012020-09-300000066740us-gaap:OperatingSegmentsMember2021-01-012021-09-300000066740us-gaap:OperatingSegmentsMember2020-01-012020-09-30
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended September 30, 2021

Commission file number: 1-3285

3M COMPANY
(Exact name of registrant as specified in its charter)
Delaware41-0417775
(State or other jurisdiction of incorporation)(IRS Employer Identification No.)
3M Center, St. Paul, Minnesota
55144-1000
(Address of Principal Executive Offices)(Zip Code)
(Registrant’s Telephone Number, Including Area Code) (651) 733-1110
Not Applicable
(Former Name or Former Address, if Changed Since Last Report)
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, Par Value $.01 Per ShareMMMNew York Stock Exchange
MMMChicago Stock Exchange, Inc.
1.500% Notes due 2026MMM26New York Stock Exchange
0.375% Notes due 2022MMM22ANew York Stock Exchange
0.950% Notes due 2023MMM23New York Stock Exchange
1.750% Notes due 2030MMM30New York Stock Exchange
1.500% Notes due 2031MMM31New York Stock Exchange
Note: The common stock of the Registrant is also traded on the SWX Swiss Exchange.
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes No
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes No
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.:
Large accelerated filerAccelerated filer
Non-accelerated filerSmaller reporting company
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for
complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes No
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
Class
Outstanding at September 30, 2021
Common Stock, $0.01 par value per share
576,252,803 shares


3M COMPANY
Form 10-Q for the Quarterly Period Ended September 30, 2021
TABLE OF CONTENTS
BEGINNING
PAGE
Note 1. Significant Accounting Policies
2

3M COMPANY
FORM 10-Q
For the Quarterly Period Ended September 30, 2021
PART I. Financial Information
Item 1. Financial Statements.

3M Company and Subsidiaries
Consolidated Statement of Income
(Unaudited)
Three months ended
September 30,
Nine months ended
September 30,
(Millions, except per share amounts)2021202020212020
Net sales$8,942 $8,350 $26,743 $23,601 
Operating expenses
Cost of sales4,853 4,303 14,097 12,217 
Selling, general and administrative expenses1,819 1,677 5,373 5,039 
Research, development and related expenses 482 461 1,520 1,422 
Gain on sale of businesses   (389)
Total operating expenses 7,154 6,441 20,990 18,289 
Operating income 1,788 1,909 5,753 5,312 
Other expense (income), net31 83 113 248 
Income before income taxes 1,757 1,826 5,640 5,064 
Provision for income taxes 324 391 1,058 1,016 
Income of consolidated group1,433 1,435 4,582 4,048 
Income (loss) from unconsolidated subsidiaries, net of taxes4 (1)7 (1)
Net income including noncontrolling interest 1,437 1,434 4,589 4,047 
Less: Net income (loss) attributable to noncontrolling interest 3 4 7 3 
Net income attributable to 3M $1,434 $1,430 $4,582 $4,044 
Weighted average 3M common shares outstanding — basic 579.6 577.8 580.3 577.2 
Earnings per share attributable to 3M common shareholders — basic$2.47 $2.47 $7.90 $7.01 
Weighted average 3M common shares outstanding — diluted586.3 582.4 587.1 581.6 
Earnings per share attributable to 3M common shareholders — diluted $2.45 $2.45 $7.81 $6.95 
The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.
3

3M Company and Subsidiaries
Consolidated Statement of Comprehensive Income
(Unaudited)
Three months ended
September 30,
Nine months ended
September 30,
(Millions)2021202020212020
Net income including noncontrolling interest$1,437 $1,434 $4,589 $4,047 
Other comprehensive income (loss), net of tax:
Cumulative translation adjustment(302)271 (354)(67)
Defined benefit pension and postretirement plans adjustment119 116 359 271 
Cash flow hedging instruments48 (71)95 (60)
Total other comprehensive income (loss), net of tax(135)316 100 144 
Comprehensive income (loss) including noncontrolling interest1,302 1,750 4,689 4,191 
Comprehensive (income) loss attributable to noncontrolling interest(2)(5)(6)(1)
Comprehensive income (loss) attributable to 3M$1,300 $1,745 $4,683 $4,190 
The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.
4

3M Company and Subsidiaries
Consolidated Balance Sheet
(Unaudited)
(Dollars in millions, except per share amount)September 30,
2021
December 31,
2020
Assets
Current assets
Cash and cash equivalents$4,878 $4,634 
Marketable securities — current 855 404 
Accounts receivable — net of allowances of $212 and $233
4,916 4,705 
Inventories
Finished goods 2,324 2,081 
Work in process 1,436 1,226 
Raw materials and supplies 1,190 932 
Total inventories 4,950 4,239 
Prepaids501 675 
Other current assets 326 325 
Total current assets 16,426 14,982 
Property, plant and equipment 27,211 26,650 
Less: Accumulated depreciation (17,888)(17,229)
Property, plant and equipment — net 9,323 9,421 
Operating lease right of use assets840 864 
Goodwill 13,597 13,802 
Intangible assets — net 5,426 5,835 
Other assets 2,666 2,440 
Total assets $48,278 $47,344 
Liabilities
Current liabilities
Short-term borrowings and current portion of long-term debt $1,972 $806 
Accounts payable 2,862 2,561 
Accrued payroll 1,019 747 
Accrued income taxes 278 300 
Operating lease liabilities — current262 256 
Other current liabilities 3,242 3,278 
Total current liabilities 9,635 7,948 
Long-term debt 16,193 17,989 
Pension and postretirement benefits 3,987 4,405 
Operating lease liabilities580 609 
Other liabilities 3,353 3,462 
Total liabilities 33,748 34,413 
Commitments and contingencies (Note 14)
Equity
3M Company shareholders’ equity:
Common stock par value, $.01 par value; 944,033,056 shares issued
9 9 
Shares outstanding - September 30, 2021: 576,252,803
Shares outstanding - December 31, 2020: 577,749,638
Additional paid-in capital 6,383 6,162 
Retained earnings 45,361 43,821 
Treasury stock, at cost:(29,673)(29,404)
Shares at September 30, 2021: 367,780,253
Shares at December 31, 2020: 366,283,418
Accumulated other comprehensive income (loss) (7,620)(7,721)
Total 3M Company shareholders’ equity 14,460 12,867 
Noncontrolling interest70 64 
Total equity 14,530 12,931 
Total liabilities and equity $48,278 $47,344 
The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.
5

3M Company and Subsidiaries
Consolidated Statement of Cash Flows
(Unaudited)
Nine months ended
September 30,
(Millions)20212020
Cash Flows from Operating Activities
Net income including noncontrolling interest $4,589 $4,047 
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization 1,408 1,413 
Company pension and postretirement contributions (121)(122)
Company pension and postretirement expense 137 232 
Stock-based compensation expense 227 216 
Gain on sale of businesses (389)
Deferred income taxes (155)(57)
Changes in assets and liabilities
Accounts receivable (324)113 
Inventories (823)43 
Accounts payable 340 (48)
Accrued income taxes (current and long-term) (41)146 
Other — net 212 4 
Net cash provided by (used in) operating activities 5,449 5,598 
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E) (1,047)(1,079)
Proceeds from sale of PP&E and other assets 44 29 
Acquisitions, net of cash acquired  (25)
Purchases of marketable securities and investments (1,810)(1,069)
Proceeds from maturities and sale of marketable securities and investments1,363 1,239 
Proceeds from sale of businesses, net of cash sold 576 
Other — net 18 8 
Net cash provided by (used in) investing activities (1,432)(321)
Cash Flows from Financing Activities
Change in short-term debt — net 4 (138)
Repayment of debt (maturities greater than 90 days) (450)(2,477)
Proceeds from debt (maturities greater than 90 days) 1 1,745 
Purchases of treasury stock (1,261)(366)
Proceeds from issuance of treasury stock pursuant to stock option and benefit plans566 325 
Dividends paid to shareholders (2,572)(2,540)
Other — net (21)(47)
Net cash provided by (used in) financing activities (3,733)(3,498)
Effect of exchange rate changes on cash and cash equivalents (40)(11)
Net increase (decrease) in cash and cash equivalents 244 1,768 
Cash and cash equivalents at beginning of year 4,634 2,353 
Cash and cash equivalents at end of period$4,878 $4,121 
The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.
6

3M Company and Subsidiaries
Notes to Consolidated Financial Statements
(Unaudited)
NOTE 1. Significant Accounting Policies
Basis of Presentation
The interim consolidated financial statements are unaudited but, in the opinion of management, reflect all adjustments necessary for a fair statement of the Company’s consolidated financial position, results of operations and cash flows for the periods presented. These adjustments consist of normal, recurring items. The results of operations for any interim period are not necessarily indicative of results for the full year. The interim consolidated financial statements and notes are presented as permitted by the requirements for Quarterly Reports on Form 10-Q. This Quarterly Report on Form 10-Q should be read in conjunction with the Company’s consolidated financial statements and notes included in its Annual Report on Form 10-K.
Effective in the first quarter of 2021, 3M made the following changes. Information provided herein reflects the impact of these changes for all periods presented.
Change in accounting principle for net periodic pension and postretirement plan cost. See below for additional information.
Change in measure of segment operating performance used by 3M’s chief operating decision maker—impacting 3M’s disclosed measure of segment profit/loss (business segment operating income). See additional information in Note 16.
Change in alignment of certain products within 3M’s Consumer business segment—creating the Consumer Health and Safety Division. See additional information in Note 16.
Change in Accounting Principle for Determining Net Periodic Pension and Postretirement Plan Cost
In the first quarter of 2021, 3M changed the method it uses to calculate the market-related value of fixed income securities included in its pension and other postretirement plan assets. The market-related value is used to determine the expected return on plan assets and the amortization of net unamortized actuarial gains or losses expense components of net periodic benefit cost. The Company previously used the calculated value approach for all plan assets, deferring over three years the impact on these amounts of asset gains or losses that differed from expected returns. 3M changed to the fair value approach for calculating market-related value for the fixed income class of plan assets, which does not involve deferring the impact of excess plan asset gains or losses in the determination of these two components of net periodic benefit cost. 3M considers the use of the fair value approach preferable to the calculated value approach as it results in a more current reflection of impacts of changes in value of these plan assets in the determination of net periodic benefit cost. Additionally, given the plans’ liability-driven investment strategy whereby the changes in value of the fixed income plan assets should offset changes in the value of the plans’ liabilities, this approach more closely aligns the expected return on plan assets expense component with the value reflected in the plans’ funded status. This change was applied retrospectively to all periods presented within 3M’s financial statements. The change did not impact consolidated operating income or net cash provided by operating activities but did impact the previously reported portion of pension and postretirement net periodic benefit cost (benefit) that was included within non-operating other expense (income) along with related consolidated income items such as net income and earnings per share. Other impacts included related changes to previously reported consolidated other comprehensive income, retained earnings, accumulated other comprehensive income (loss), and associated line items within the determination of net cash provided by operating activities. For classes of plan assets other than fixed income investments, the Company continues to use the calculated value approach to determine their market-related value.
7

The adoption of this change impacted previously reported amounts included herein as indicated in the tables below.

Consolidated Statement of Income
Three months ended
September 30, 2020
Nine months ended
September 30, 2020
(Millions, except per share amounts)Under Prior
Method
As AdjustedUnder Prior
Method
As Adjusted
Other expense (income), net$104$83$311$248
Income before income taxes1,8051,8265,0015,064
Provision for income taxes3873911,0021,016
Income of consolidated group1,4181,4353,9994,048
Net income including noncontrolling interest1,4171,4343,9984,047
Net income attributable to 3M1,4131,4303,9954,044
Earnings per share attributable to 3M common shareholders — basic$2.45$2.47$6.92$7.01
Earnings per share attributable to 3M common shareholders — diluted$2.43$2.45$6.87$6.95
Consolidated Statement of Comprehensive Income
Three months ended
September 30, 2020
Nine months ended
September 30, 2020
(Millions)Under Prior
Method
As AdjustedUnder Prior
Method
As Adjusted
Net income including noncontrolling interest$1,417$1,434$3,998$4,047
Other comprehensive income (loss), net of tax:
Defined benefit pension and postretirement plans adjustment127116304271
Total other comprehensive income (loss), net of tax327316177 144 
Comprehensive income (loss) including noncontrolling interest1,7441,7504,1754,191
Comprehensive income (loss) attributable to 3M1,7391,7454,1744,190
Consolidated Balance Sheet
As of December 31, 2020
(Millions)Under Prior
Method
As Adjusted
Retained earnings$43,761$43,821
Accumulated other comprehensive income (loss)(7,661)(7,721)
Consolidated Statement of Cash Flows
Nine months ended
September 30, 2020
(Millions)Under Prior
Method
As Adjusted
Net income including noncontrolling interest$3,998$4,047
Company pension and postretirement expense295232
Other — net (10)4 
The cumulative adjustment as of January 1, 2020, the beginning of the earliest period presented in the consolidated financial statements included herein, was a $5 million reduction to each of retained earnings and accumulated other comprehensive loss.
8

Earnings Per Share
The difference in the weighted average 3M shares outstanding for calculating basic and diluted earnings per share attributable to 3M common shareholders is a result of the dilution associated with the Company’s stock-based compensation plans. Certain options outstanding under these stock-based compensation plans were not included in the computation of diluted earnings per share attributable to 3M common shareholders because they would have had an anti-dilutive effect of 7.9 million average options for the three months ended September 30, 2021; 7.7 million average options for the nine months ended September 30, 2021; 18.8 million average options for the three months ended September 30, 2020; 19.6 million average options for the nine months ended September 30, 2020). The computations for basic and diluted earnings per share follow:
Earnings Per Share Computations
Three months ended
September 30,
Nine months ended
September 30,
(Amounts in millions, except per share amounts)2021202020212020
Numerator:
Net income attributable to 3M $1,434 $1,430 $4,582 $4,044 
Denominator:
Denominator for weighted average 3M common shares outstanding basic
579.6 577.8 580.3 577.2 
Dilution associated with the Company’s stock-based compensation plans 6.7 4.6 6.8 4.4 
Denominator for weighted average 3M common shares outstanding diluted
586.3 582.4 587.1 581.6 
Earnings per share attributable to 3M common shareholders basic
$2.47 $2.47 $7.90 $7.01 
Earnings per share attributable to 3M common shareholders diluted
$2.45 $2.45 $7.81 $6.95 
9

New Accounting Pronouncements
Refer to Note 1 in 3M’s 2020 Annual Report on Form 10-K for a more detailed discussion of the standards in the tables that follow, except for those pronouncements issued subsequent to the most recent Form 10-K filing date for which separate, more detailed discussion is provided below as applicable.
Standards Adopted During the Current Fiscal Year
StandardRelevant DescriptionEffective Date for 3MImpact and Other Matters
ASU No. 2019-12, Simplifying the Accounting for Income Taxes (Topic 740)
Eliminates certain existing exceptions related to the general approach in ASC 740 relating to franchise taxes, reducing complexity in the interim-period accounting for year-to-date loss limitations and changes in tax laws, and clarifying the accounting for transactions outside of business combination that result in a step-up in the tax basis of goodwill.January 1, 2021Adoption of this ASU did not have a material impact on 3M’s consolidated results of operations and financial condition.
ASU No. 2020-01, Clarifying the Interactions between Topic 321, Investments—Equity Securities, Topic 323, Investments—Equity Method and Joint Ventures, and Topic 815, Derivatives and Hedging
Clarifies when accounting for certain equity securities, a Company should consider observable transactions before applying or upon discontinuing the equity method of accounting for the purposes of applying the measurement alternative.
Indicates when determining the accounting for certain derivatives, a Company should not consider if the underlying securities would be accounted for under the equity method or fair value option.
January 1, 2021Adoption of this ASU did not have a material impact on 3M’s consolidated results of operations and financial condition.
ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on
Financial Reporting and ASU No. 2021-01, Reference Rate Reform (Topic 848): Scope
Provides temporary optional expedients and exceptions to existing guidance on contract modifications and hedge accounting to facilitate the market transition from existing reference rates, such as LIBOR which is being phased out beginning at the end of 2021, to alternate reference rates, such as SOFR.
Effective upon ASU issuances in 2020 & 2021
With the beginning of the phase out of LIBOR at the end of 2021, 3M continues to evaluate commercial contracts that may utilize LIBOR and will continue to monitor developments during the LIBOR transition period.
NOTE 2. Revenue
Contract Balances:
Deferred revenue primarily relates to revenue that is recognized over time for one-year software license contracts. Deferred revenue (current portion) as of September 30, 2021 and December 31, 2020 was $467 million and $498 million, respectively. Approximately $90 million and $410 million of the December 31, 2020 balance was recognized as revenue during the three and nine months ended September 30, 2021, respectively, while approximately $100 million and $370 million of the December 31, 2019 balance was recognized as revenue during the three and nine months ended September 30, 2020, respectively.
Operating Lease Revenue:
Net sales includes rental revenue from durable medical devices as part of operating lease arrangements (reported within the Medical Solutions Division), which was $148 million and $153 million during the three months ended September 30, 2021 and 2020, respectively, and $433 million and $428 million during the nine months ended September 30, 2021 and 2020.
10

Disaggregated revenue information:
The Company views the following disaggregated disclosures as useful to understanding the composition of revenue recognized during the respective reporting periods:
Three months ended
September 30,
Nine months ended
September 30,
Net Sales (Millions)2021202020212020
Abrasives$362$289$1,067$861