Condensed Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Net earnings including noncontrolling interests	$ 512.5	$ 417.8	$ 1,480.2	$ 1,240.9
Other comprehensive income/(loss), net of tax:
Reclassification adjustment for net (gains)/losses realized in earnings for cash flow hedges and available-for-sale securities, before tax	(2.6)	11.1	2.8	27.3
Reclassification adjustment for net (gains)/losses realized in net earnings for cash flow hedges and available-for-sale securities, tax expense/(benefit)	1.1	(0.5)	2.0	(1.9)
Translation adjustment, before tax	19.8	(25.0)	(2.9)	(74.7)
Translation adjustment, tax (expense)/benefit	(2.2)	5.8	(5.6)	4.5
Other comprehensive income/(loss)	6.6	31.8	3.9	(8.2)
Comprehensive income including noncontrolling interests	519.1	449.6	1,484.1	1,232.7
Comprehensive income/(loss) attributable to noncontrolling interests	(0.1)	0	(0.1)	0.6
Comprehensive income attributable to Starbucks	519.2	449.6	1,484.2	1,232.1
Available-for-sale Securities [Member]
Other comprehensive income/(loss), net of tax:
Unrealized holding gains/(losses) on available-for-sale securities, before tax	1.7	(0.3)	0.8	(0.3)
Unrealized holding gains/(losses) on available-for-sale securities, tax (expense)/benefit	(0.6)	0.1	(0.2)	0.1
Cash Flow Hedging [Member]
Other comprehensive income/(loss), net of tax:
Unrealized gains/(losses) on derivatives, before tax	(13.8)	55.6	6.1	34.9
Unrealized gains/(losses) on derivatives, tax (expense)/benefit	3.6	(20.0)	(2.4)	(19.7)
Net Investment Hedging [Member]
Other comprehensive income/(loss), net of tax:
Unrealized gains/(losses) on derivatives, before tax	(0.7)	7.9	5.2	34.3
Unrealized gains/(losses) on derivatives, tax (expense)/benefit	$ 0.3	$ (2.9)	$ (1.9)	$ (12.7)