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

No definition available.

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

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable related to reopening of previous debt issuance.

+ References

No definition available.

+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium related to reopening of previous issuance.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ 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))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Publisher FASB
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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
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

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+ Details

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

- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
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-Paragraph 10
-Subparagraph (a)
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+ Details

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

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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

- Definition

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

+ References

+ Details

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

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

- Definition

Amount, after accumulated amortization, of debt discount (premium).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 4
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+ Details

Name:	us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
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+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	instant

- Details

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Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=sbux_FourPointThreePercentageSeniorNotesMember
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- Details

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Debt (Components of Long-Term Debt Including Associated Interest Rates and Related Fair Values) (Details) - USD ($) $ in Millions	Oct. 02, 2016	Jun. 26, 2016	Sep. 27, 2015
Debt Instrument [Line Items]
Total, Face Value	$ 3,600.0		$ 2,350.0
Total, Estimated Fair Value	3,814.0		2,402.0
Aggregate unamortized premium/(discount)	(2.2)		2.5
Total, Carrying Value, net of aggregate unamortized discount	3,602.2		2,347.5
Point Eight Seven Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 400.0		400.0
Stated Interest Rate	0.875%
Effective Interest Rate	0.941%
Two Point Zero Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 350.0		350.0
Stated Interest Rate	2.00%
Effective Interest Rate	2.012%
Two Point One Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 500.0		0.0
Face amount from reopening of previous Senior Notes	$ 250.0	$ 250.0	0.0
Stated Interest Rate	2.10%
Effective Interest Rate	2.293%
Effective Interest Rate for reopening of previous Senior Notes	1.60%
Two Point Seven Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 500.0		500.0
Stated Interest Rate	2.70%
Effective Interest Rate	2.819%
Three Point Eight Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 750.0		750.0
Stated Interest Rate	3.85%
Effective Interest Rate	2.86%
Two Point Four Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 500.0		0.0
Stated Interest Rate	2.45%
Effective Interest Rate	2.511%
Four Point Three Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Value	$ 350.0		350.0
Stated Interest Rate	4.30%
Effective Interest Rate	4.348%
Fair Value, Inputs, Level 2 [Member] \| Point Eight Seven Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	$ 400.0		400.0
Fair Value, Inputs, Level 2 [Member] \| Two Point Zero Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	357.0		354.0
Fair Value, Inputs, Level 2 [Member] \| Two Point One Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	511.0		0.0
Estimated Fair Value for reopening of previous Senior Notes	255.0		0.0
Fair Value, Inputs, Level 2 [Member] \| Two Point Seven Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	526.0		503.0
Fair Value, Inputs, Level 2 [Member] \| Three Point Eight Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	839.0		790.0
Fair Value, Inputs, Level 2 [Member] \| Two Point Four Five Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	509.0		0.0
Fair Value, Inputs, Level 2 [Member] \| Four Point Three Percentage Senior Notes [Member]
Debt Instrument [Line Items]
Estimated Fair Value	$ 417.0		$ 355.0