Inventories (Components of Inventory) (Details) - USD ($) $ in Millions	Jun. 28, 2020	Sep. 29, 2019
Inventory Disclosure [Abstract]
Unroasted coffee	$ 757.5	$ 656.5
Roasted Coffee Inventory	214.3	276.5
Other merchandise held for sale	268.8	288.0
Retail Related Inventory, Packaging and Other Supplies	343.2	308.4
Total	$ 1,583.8	$ 1,529.4

Carrying amount as of the balance sheet date of roasted coffee held by the company.

No definition available.

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- Definition

Carrying amount as of the balance sheet date of unroasted coffee held by the company.

+ References

No definition available.

+ Details

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Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
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- References

No definition available.

+ Details

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- Definition

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or 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 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

Carrying amount as of the balance sheet date of merchandise inventory purchased by a retailer, wholesaler or distributor and held for future sale.

+ 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 210.5-02.6(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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- Definition

Carrying amount as of the balance sheet date of items used in storage, presentation or transportation of physical goods that are targeted for sale to end users.

+ References

+ Details

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