Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
Sep. 28, 2025	Sep. 29, 2024	Oct. 01, 2023
Net earnings including noncontrolling interests	$ 1,856.7	$ 3,762.3	$ 4,124.7
Other comprehensive income/(loss), net of tax:
Other comprehensive income/(loss)	(30.5)	349.4	(315.0)
Comprehensive income including noncontrolling interests	1,826.2	4,111.7	3,809.7
Comprehensive Income, Net of Tax, Attributable to Parent	1,826.1	4,109.9	3,810.2
Available-for-sale Securities [Member]
Other comprehensive income/(loss), net of tax:
Unrealized holding gains/(losses) on available-for-sale securities, before tax	2.7	12.1	3.3
Unrealized holding gains/(losses) on available-for-sale securities, tax (expense)/benefit	(0.8)	(3.0)	(0.8)
Cash Flow Hedging [Member]
Other comprehensive income/(loss), net of tax:
Net Gains/(Losses) Included in AOCI	80.1	106.0	(149.4)
Net Gains/(Losses) Included in AOCI	(17.9)	(16.2)	17.2
Net Investment Hedges [Member]
Other comprehensive income/(loss), net of tax:
Unrealized gains/(losses) on hedging instruments, before tax	255.9	55.7	73.2
Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification, Tax	(64.6)	(14.1)	(18.5)
Translation Adjustment [Member]
Other comprehensive income/(loss), net of tax:
Translation adjustment and other, before tax	(113.4)	225.9	(109.0)
Translation adjustment and other, tax (expense)/benefit	0.0	(8.8)	1.8
Other comprehensive income/(loss)	(113.2)	216.6	(105.2)
Noncontrolling Interest [Member]
Net earnings including noncontrolling interests	0.3	1.4	0.2
Other comprehensive income/(loss), net of tax:
Other comprehensive income/(loss)	(0.2)	0.4	(0.7)
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	0.1	1.8	(0.5)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Other comprehensive income/(loss), net of tax:
Reclassification adjustment for net gains (losses) realized in net earnings for available-for-sale securities, hedging instruments, and translation adjustment, before tax	(224.9)	(19.2)	(158.9)
Reclassification adjustment for net gains (losses) realized in net earnings for available-for-sale securities, hedging instruments, and translation adjustment, tax expense/(benefit)	$ 52.4	$ 11.0	$ 26.1

Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification, Tax

No definition available.

Name:	sbux_OtherComprehensiveIncomeLossNetInvestmentHedgeGainLossBeforeReclassificationTax
Namespace Prefix:	sbux_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount before tax of reclassification adjustments from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss), gain (loss) realized upon the sale of available-for-sale securities, and translation gain (loss) realized upon the sale or liquidation of an investment in a foreign entity and foreign currency hedges that are designated and qualified as hedging instruments for hedges of the foreign currency exposure of a net investment in a foreign operation.

+ References

No definition available.