1.0.0.3 false Entity Information (USD $) false 1 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 u001 Standard http://www.xbrl.org/2003/instance shares xbrli 0 u002 Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 false 2 $ false false u001 Standard http://www.xbrl.org/2003/instance shares xbrli 0 false 3 $ false false u000 Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 2 0 dei_EntityTextBlock dei false na duration string No definition available. false false false false false true false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. false 3 1 dei_EntityRegistrantName dei false na duration normalizedstring No definition available. false false false false false false false false false 1 false false 0 0 QUALCOMM INC/DE QUALCOMM INC/DE false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 4 1 dei_EntityCentralIndexKey dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 0000804328 0000804328 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 5 1 dei_CurrentFiscalYearEndDate dei false na duration monthday No definition available. false false false false false false false false false 1 false false 0 0 --09-26 --09-26 false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 6 1 dei_EntityWellKnownSeasonedIssuer dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Yes Yes false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 7 1 dei_EntityVoluntaryFilers dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 No No false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 8 1 dei_EntityCurrentReportingStatus dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Yes Yes false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 9 1 dei_EntityFilerCategory dei false na duration na No definition available. false false false false false false false false false 1 false false 0 0 Large Accelerated Filer Large Accelerated Filer false false 2 false false 0 0 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false 10 1 dei_EntityPublicFloat dei false credit instant monetary No definition available. false false false false false false false false false 1 false false 0 0 false false 2 false false 0 0 false false 3 true true 62311546530 62311546530 false false No definition available. No authoritative reference available. false 11 1 dei_EntityCommonStockSharesOutstanding dei false na instant shares No definition available. false false false false false false false false false 1 false false 0 0 false false 2 false true 1680600735 1680600735 false false 3 false false 0 0 false false No definition available. No authoritative reference available. false false 3 10 false NoRounding NoRounding UnKnown false true