Deferred Revenue (Narrative) (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Mar. 29, 2026 |
Mar. 30, 2025 |
Mar. 29, 2026 |
Mar. 30, 2025 |
Sep. 28, 2025 |
|
| Deferred Revenue Arrangement [Line Items] | |||||
| Stored value card liability and current portion of deferred revenue | $ 1,828.7 | $ 1,828.7 | $ 1,840.6 | ||
| Deferred revenue | 5,678.7 | 5,678.7 | 5,772.6 | ||
| Deferred Revenue, Revenue Recognized | 44.1 | $ 44.1 | 88.2 | $ 88.2 | |
| Nestle Global Coffee Alliance [Member] | |||||
| Deferred Revenue Arrangement [Line Items] | |||||
| Stored value card liability and current portion of deferred revenue | 177.0 | 177.0 | 177.0 | ||
| Deferred revenue | $ 5,600.0 | $ 5,600.0 | $ 5,600.0 | ||