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Equity (Impact of Reclassifications from Accumulated Other Comprehensive Income on Earnings) (Details) (USD $) In Millions, unless otherwise specified
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3 Months Ended |
6 Months Ended |
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Mar. 29, 2015
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Mar. 30, 2014
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Mar. 29, 2015
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Mar. 30, 2014
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Sep. 28, 2014
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Interest expense |
$ (16.9)us-gaap_InterestExpense |
$ (16.7)us-gaap_InterestExpense |
$ (33.2)us-gaap_InterestExpense |
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$ (31.3)us-gaap_InterestExpense |
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| Amounts Reclassified from AOCI, Interest income and other, net |
1.3us-gaap_InterestAndOtherIncome |
17.8us-gaap_InterestAndOtherIncome |
11.1us-gaap_InterestAndOtherIncome |
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37.6us-gaap_InterestAndOtherIncome |
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| Amounts Reclassified from AOCI, Revenue |
4,563.5us-gaap_SalesRevenueNet |
3,873.8us-gaap_SalesRevenueNet |
9,366.8us-gaap_SalesRevenueNet |
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8,113.4us-gaap_SalesRevenueNet |
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| Amounts Reclassified from AOCI, Cost of sales including occupancy costs |
(1,859.8)us-gaap_CostOfGoodsAndServicesSold |
(1,629.2)us-gaap_CostOfGoodsAndServicesSold |
(3,851.0)us-gaap_CostOfGoodsAndServicesSold |
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(3,424.2)us-gaap_CostOfGoodsAndServicesSold |
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| Gain resulting from acquisition of joint venture |
0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |
0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |
390.6us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |
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0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain |
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| Amounts Reclassified from AOCI, Tax (expense)/benefit |
(266.3)us-gaap_IncomeTaxExpenseBenefit |
(218.3)us-gaap_IncomeTaxExpenseBenefit |
(581.2)us-gaap_IncomeTaxExpenseBenefit |
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(496.4)us-gaap_IncomeTaxExpenseBenefit |
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| Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Total before tax |
(4.6)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
2.5us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
55.0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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(5.1)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodBeforeTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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| Amounts Reclassified from AOCI, Tax (expense)/benefit |
0.6us-gaap_IncomeTaxExpenseBenefit / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
(1.1)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
(16.5)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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(1.0)us-gaap_IncomeTaxExpenseBenefit / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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| Amounts Reclassified from AOCI |
(4.0)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
1.4us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
38.5us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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(6.1)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember |
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| Net Investment Hedging [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI |
0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
(4.6)us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
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0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
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| Net Investment Hedging [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Gain resulting from acquisition of joint venture |
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7.2us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
[1] |
0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
[1] |
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| Translation Adjustment [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI |
0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
14.3us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
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0us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
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| Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Interest income and other, net |
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(7.1)us-gaap_InterestAndOtherIncome / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
[2] |
0us-gaap_InterestAndOtherIncome / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
[2] |
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| Gain resulting from acquisition of joint venture |
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(7.2)us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
[2] |
0us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedTranslationAdjustmentMember |
[2] |
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| Interest Rate Contract [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Interest expense |
1.3us-gaap_InterestExpense / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
1.3us-gaap_InterestExpense / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
2.6us-gaap_InterestExpense / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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2.5us-gaap_InterestExpense / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_InterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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| Cross-Currency Swap [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Interest income and other, net |
(10.6)us-gaap_InterestAndOtherIncome / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
0us-gaap_InterestAndOtherIncome / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
52.5us-gaap_InterestAndOtherIncome / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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0us-gaap_InterestAndOtherIncome / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_CrossCurrencyInterestRateContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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| Foreign Exchange Contract - Other [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Revenue |
3.4us-gaap_SalesRevenueNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
1.3us-gaap_SalesRevenueNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
5.9us-gaap_SalesRevenueNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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2.3us-gaap_SalesRevenueNet / us-gaap_DerivativeInstrumentRiskAxis = us-gaap_ForeignExchangeContractMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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| Foreign Currency and Coffee Contracts [Member] | Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Amounts Reclassified from AOCI, Cost of sales including occupancy costs |
1.3us-gaap_CostOfGoodsAndServicesSold / us-gaap_DerivativeInstrumentRiskAxis = sbux_ForeignCurrencyandCoffeeContractsMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
(0.1)us-gaap_CostOfGoodsAndServicesSold / us-gaap_DerivativeInstrumentRiskAxis = sbux_ForeignCurrencyandCoffeeContractsMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
1.1us-gaap_CostOfGoodsAndServicesSold / us-gaap_DerivativeInstrumentRiskAxis = sbux_ForeignCurrencyandCoffeeContractsMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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(9.9)us-gaap_CostOfGoodsAndServicesSold / us-gaap_DerivativeInstrumentRiskAxis = sbux_ForeignCurrencyandCoffeeContractsMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember |
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| Starbucks Coffee Japan Ltd Member |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Gain resulting from acquisition of joint venture |
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390.6us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_BusinessAcquisitionAxis = sbux_StarbucksCoffeeJapanLtdMember |
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| Preexisting ownership percentage in Starbucks Japan |
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39.50%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_BusinessAcquisitionAxis = sbux_StarbucksCoffeeJapanLtdMember |
| Starbucks Coffee Japan Ltd Member | Net Investment Hedging [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] |
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| Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
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| Gain resulting from acquisition of joint venture |
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$ 7.2us-gaap_BusinessCombinationStepAcquisitionEquityInterestInAcquireeRemeasurementGain / us-gaap_BusinessAcquisitionAxis = sbux_StarbucksCoffeeJapanLtdMember / us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis = us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember / us-gaap_StatementEquityComponentsAxis = us-gaap_NetInvestmentHedgingMember |
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