Segment Reporting (Revenue from External Customers by Products and Services) (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 29, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total net revenues		$ 9,397.8	$ 9,425.3
Beverage Member
Segment Reporting Information [Line Items]
Total net revenues	[1]	5,678.0	5,695.9
Food Member
Segment Reporting Information [Line Items]
Total net revenues	[2]	1,790.4	1,757.1
Other Products Member
Segment Reporting Information [Line Items]
Total net revenues	[3]	$ 1,929.4	$ 1,972.3
Revenue Benchmark [Member] | Product type
Segment Reporting Information [Line Items]
Concentration Risk, Percentage		100.00%	100.00%
Revenue Benchmark [Member] | Beverage Member | Product type
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	[1]	60.00%	60.00%
Revenue Benchmark [Member] | Food Member | Product type
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	[2]	19.00%	19.00%
Revenue Benchmark [Member] | Other Products Member | Product type
Segment Reporting Information [Line Items]
Concentration Risk, Percentage	[3]	21.00%	21.00%

[1] Beverage” represents sales within our company-operated stores.

[2] Food” includes sales within our company-operated stores.

[3] Other” primarily consists of packaged and single-serve coffees and teas, royalty and licensing revenues, beverage-related ingredients, and serveware, among other items.