Amount of credit facility available for issuances of letters of credit

No definition available.

Name:	sbux_AmountOfCreditFacilityAvailableForIssuancesOfLettersOfCredit
Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity under the financing arrangement that is available to the entity as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	sbux_DebtInstrumentBorrowingCapacityAmount
Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of Credit Facility, Borrowing Capacity before Increase/(Decrease)

+ References

No definition available.

+ Details

Name:	sbux_LineOfCreditFacilityBorrowingCapacityBeforeIncreaseDecrease
Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum increase in commitment amount allowable under the credit facility

+ References

No definition available.

+ Details

Name:	sbux_MaximumIncreaseInCommitmentAmountAllowableUnderCreditFacility
Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityCovenantCompliance
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

+ Details

Name:	us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(1))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(13))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_TwothousandeighteencreditfacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_EurodollarMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_BaseRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_ThreehundredsixtyfourdaycreditfacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_CommercialPaperMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_A1BillionYenCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CurrencyAxis=currency_JPY
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_A5BillionYenCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=sbux_TokyoInterbankOfferedRateTIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_A2BillionYenCreditFacilityMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_A10BillionYenCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=sbux_A5BillionAnd10BillionYenCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt (Narrative) (Details) ¥ in Millions			12 Months Ended
Debt (Narrative) (Details) ¥ in Millions	Mar. 26, 2021	Dec. 31, 2020	Sep. 27, 2020 USD ($)	Sep. 27, 2020 JPY (¥)	Sep. 29, 2019 USD ($)
Short-term Debt			$ 438,800,000		$ 0
Revolving Credit Facility [Member]
Line of credit covenant compliance			As of September 27, 2020, we were in compliance with all applicable covenants.
Two Thousand Eighteen Credit Facility [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Expiration Date			Oct. 25, 2022
Amount of credit facility available for issuances of letters of credit			$ 150,000,000
Line of Credit Facility, Maximum Borrowing Capacity			2,000,000,000.0
Maximum increase in commitment amount allowable under the credit facility			$ 500,000,000
Two Thousand Eighteen Credit Facility [Member] \| Eurocurrency Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Basis Spread on Variable Rate			1.10%
Two Thousand Eighteen Credit Facility [Member] \| Base Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Basis Spread on Variable Rate			0.00%
Three Hundred Sixty Four Day Credit Facility [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Expiration Date			Sep. 22, 2021
Amount of credit facility available for issuances of letters of credit			$ 0
Line of Credit Facility, Maximum Borrowing Capacity			1,000,000,000.0
Maximum increase in commitment amount allowable under the credit facility			$ 500,000,000
Three Hundred Sixty Four Day Credit Facility [Member] \| Eurocurrency Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Basis Spread on Variable Rate			1.15%
Three Hundred Sixty Four Day Credit Facility [Member] \| Base Rate [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Basis Spread on Variable Rate			0.15%
Commercial Paper [Member]
Short-term Debt			$ 296,500,000
Debt Instrument, Borrowing Capacity, Amount			$ 3,000,000,000.0
Commercial Paper [Member] \| Maximum [Member]
Debt Instrument, Term			397 days
Revolving Credit Facility [Member]
Line of Credit Facility, Fair Value of Amount Outstanding			$ 0
Revolving Credit Facility [Member] \| 1 billion Yen Credit Facility [Member] \| Japan, Yen
Line of Credit Facility, Borrowing Capacity before Increase/(Decrease) \| ¥				¥ 1,000.0
Revolving Credit Facility [Member] \| 5 billion Yen Credit Facility [Member]
Line of Credit Facility, Expiration Date		Dec. 31, 2020
Line of Credit Facility, Maximum Borrowing Capacity			$ 47,400,000
Revolving Credit Facility [Member] \| 5 billion Yen Credit Facility [Member] \| Japan, Yen
Line of Credit Facility, Maximum Borrowing Capacity \| ¥				5,000.0
Revolving Credit Facility [Member] \| 5 billion Yen Credit Facility [Member] \| Tokyo Interbank Offered Rate TIBOR [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate			0.40%
Revolving Credit Facility [Member] \| 2 billion Yen Credit Facility [Member] \| Japan, Yen
Line of Credit Facility, Borrowing Capacity before Increase/(Decrease) \| ¥				2,000.0
Revolving Credit Facility [Member] \| 10 billion Yen Credit Facility [Member]
Line of Credit Facility, Expiration Date	Mar. 26, 2021
Line of Credit Facility, Maximum Borrowing Capacity			$ 94,900,000
Revolving Credit Facility [Member] \| 10 billion Yen Credit Facility [Member] \| Japan, Yen
Line of Credit Facility, Maximum Borrowing Capacity \| ¥				10,000.0
Revolving Credit Facility [Member] \| 10 billion Yen Credit Facility [Member] \| Tokyo Interbank Offered Rate TIBOR [Member]
Debt Instrument, Basis Spread on Variable Rate			0.30%
Revolving Credit Facility [Member] \| 5 billion and 10 billion Yen Credit Facility [Member]
Short-term Debt			$ 142,300,000
Revolving Credit Facility [Member] \| 5 billion and 10 billion Yen Credit Facility [Member] \| Japan, Yen
Short-term Debt \| ¥				¥ 15,000.0