Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument from reopening of previous debt issuance.

+ References

No definition available.

+ Details

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

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(2))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=sbux_ThreePointEightFivePercentageSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sbux_TwoPointOnePercentageSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=sbux_TwoPointFourFivePercentageSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

Derivative Financial Instruments Derivative Financial Instruments (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended
	Jun. 30, 2017	May 31, 2016	Feb. 29, 2016	Oct. 01, 2017	Oct. 02, 2016	Jun. 26, 2016	Mar. 27, 2016
Three Point Eight Five Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Face value of Senior Notes				$ 750.0	$ 750.0
Stated Interest Rate				3.85%
Two Point One Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Face value of Senior Notes				$ 500.0	500.0
Face amount from reopening of previous Senior Notes				$ 250.0	250.0	$ 250.0
Stated Interest Rate				2.10%
Two Point Four Five Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Face value of Senior Notes				$ 500.0	500.0
Stated Interest Rate				2.45%
Interest Rate Contract [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount				$ 750.0	0.0
Interest Rate Contract [Member] \| Two Point One Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount					375.0
Cross-Currency Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivative, Notional Amount				$ 514.0	$ 660.0
Senior Notes [Member] \| Three Point Eight Five Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Debt Instrument, Maturity	Oct. 01, 2023
Senior Notes [Member] \| Two Point One Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Face value of Senior Notes							$ 500.0
Stated Interest Rate							2.10%
Debt Instrument, Maturity			Feb. 04, 2021
Senior Notes [Member] \| Two Point Four Five Percentage Senior Notes [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Face value of Senior Notes						$ 500.0
Stated Interest Rate						2.45%
Debt Instrument, Maturity		Jun. 15, 2026