For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Description of the types of products and services from which the reportable segment derives its revenue.

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Description of the factors used to identify reportable segments, including the basis of organization (for example, whether management has chosen to organize the enterprise around differences in products and services, geographic areas, regulatory environments, or a combination of factors and whether operating segments have been aggregated to reportable segments).

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Disclosure of the extent of enterprise reliance on its major customers. For example, includes revenues from transactions with a single external customer amounting to 10 percent or more of the entity's revenues, the total amount of revenues from each such customer, and the identity of the segment or segments reporting the revenues. A group of entities that the entity knows to be under common control generally will be considered a single customer for inclusion in this item. The federal government, a state government, a local government (for example, a county or municipality), or a foreign government each will generally be considered as a single customer for inclusion in this item.

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Segment Reporting (Narrative) (Details)	12 Months Ended
Segment Reporting (Narrative) (Details)	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Basis for segment information	Segment information is prepared on the same basis that our ceo, who is our Chief Operating Decision Maker, manages the segments, evaluates financial results and makes key operating decisions.
Number of Reportable Segments	3
Disclosure of significant customers	No customer accounts for 10% or more of our revenues
Total net revenues [Member]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	100.00%	100.00%	100.00%
Total net revenues [Member] \| Japan, Canada and the UK Member [Domain]
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	78.00%
Operating Segments [Member] \| Americas and International [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information, Description of Products and Services	Americas and International operations sell coffee and other beverages, complementary food, packaged coffees, single-serve coffee products and a focused selection of merchandise through company-operated stores and licensed stores.
Operating Segments [Member] \| Channel Development [Member]
Segment Reporting Information [Line Items]
Segment Reporting Information, Description of Products and Services	Channel Development revenues include packaged coffee sales, tea and ready-to-drink beverages to customers outside of our company-operated and licensed stores. Historically revenues have included domestic and international sales of our packaged coffee, tea and ready-to-drink products to grocery, warehouse club and specialty retail stores and through institutional foodservice companies which serviced businesses. Since the fourth quarter of fiscal 2018, most of our Channel Development revenues are from product sales to and royalty revenues from Nestlé. The collaborative business relationships for ready-to-drink products and the associated revenues remain unchanged due to the Global Coffee Alliance.