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Debt (Components of Long-Term Debt Including Associated Interest Rates and Related Fair Values) (Details) (USD $)
In Millions, unless otherwise specified
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Mar. 29, 2015
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Sep. 28, 2014
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| Debt Instrument [Line Items] |
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| Total, Face Value |
$ 2,050.0us-gaap_DebtInstrumentCarryingAmount |
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$ 2,050.0us-gaap_DebtInstrumentCarryingAmount |
| Aggregate unamortized discount |
1.5us-gaap_DebtInstrumentUnamortizedDiscount |
|
1.7us-gaap_DebtInstrumentUnamortizedDiscount |
| Total, Carrying Value, net of aggregate unamortized discount |
2,048.5us-gaap_LongTermDebt |
|
2,048.3us-gaap_LongTermDebt |
| Total, Estimated Fair Value |
2,187us-gaap_LongTermDebtFairValue |
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2,164us-gaap_LongTermDebtFairValue |
| Point Eight Seven Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Debt Instrument, Face Value |
400.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember |
|
400.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember |
| Stated Interest Rate |
0.875%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember |
|
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| Effective Interest Rate |
0.941%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember |
[1] |
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| Six Point Two Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Debt Instrument, Face Value |
550.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember |
|
550.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember |
| Stated Interest Rate |
6.25%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember |
|
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| Effective Interest Rate |
6.292%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember |
[1] |
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| Two Point Zero Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Debt Instrument, Face Value |
350.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember |
|
350.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember |
| Stated Interest Rate |
2.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember |
|
|
| Effective Interest Rate |
2.012%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember |
[1] |
|
| Three Point Eight Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Debt Instrument, Face Value |
750.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember |
|
750.0us-gaap_DebtInstrumentFaceAmount
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember |
| Stated Interest Rate |
3.85%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember |
|
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| Effective Interest Rate |
2.86%us-gaap_DebtInstrumentInterestRateEffectivePercentage
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember |
[1] |
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| Fair Value, Inputs, Level 2 [Member] | Point Eight Seven Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Estimated Fair Value |
400us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
|
400us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_PointEightSevenFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
| Fair Value, Inputs, Level 2 [Member] | Six Point Two Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Estimated Fair Value |
610us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
|
625us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_SixPointTwoFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
| Fair Value, Inputs, Level 2 [Member] | Two Point Zero Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Estimated Fair Value |
359us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
|
353us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_TwoPointZeroPercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
| Fair Value, Inputs, Level 2 [Member] | Three Point Eight Five Percentage Senior Notes [Member] |
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| Debt Instrument [Line Items] |
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| Estimated Fair Value |
$ 818us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
|
$ 786us-gaap_DebtInstrumentFairValue
/ us-gaap_DebtInstrumentAxis
= sbux_ThreePointEightFivePercentageSeniorNotesMember
/ us-gaap_FairValueByFairValueHierarchyLevelAxis
= us-gaap_FairValueInputsLevel2Member |
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