Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 02, 2011		Oct. 03, 2010		Sep. 27, 2009	Sep. 28, 2008
Number of stores closed globally due to portfolio rationalization	918
Costs incurred and charged to expense during the period	$ 0		$ 53.0		$ 332.4	$ 266.9
Cumulative costs incurred to date	652.3
Accrued liability, beginning balance	89.2	[1]	104.0
Costs incurred excluding non-cash charges			53.4	[2]
Cash payments	(27.1)		(68.2)
Other	0.5
Accrued liability, ending balance	62.6	[1]	89.2	[1]	104.0
US [Member]
Costs incurred and charged to expense during the period			27.2		246.3	210.9
Cumulative costs incurred to date	484.4
International [Member]
Costs incurred and charged to expense during the period			25.8		27.0	19.2
Cumulative costs incurred to date	72.0
Other [Member]
Costs incurred and charged to expense during the period			0		59.1	36.8
Cumulative costs incurred to date	95.9
Lease Exit And Other Related Costs [Member]
Costs incurred and charged to expense during the period			53.0		184.2	47.8
Cumulative costs incurred to date	285.0
Accrued liability, beginning balance	89.2	[1]	102.8
Costs incurred excluding non-cash charges			53.7	[2]
Cash payments	(27.1)		(67.3)
Other	0.5
Accrued liability, ending balance	62.6	[1]	89.2	[1]	102.8
Asset Impairments [Member]
Costs incurred and charged to expense during the period			0.2		129.2	201.6
Cumulative costs incurred to date	331.0
Employee Termination Costs [Member]
Costs incurred and charged to expense during the period			(0.2)		19.0	17.5
Cumulative costs incurred to date	36.3
Accrued liability, beginning balance			1.2
Costs incurred excluding non-cash charges			(0.3)	[2]
Cash payments			(0.9)
Accrued liability, ending balance			$ 0	[1]	$ 1.2

[1] The remaining liability relates to lease obligations for stores that were previously closed where Starbucks has been unable to terminate the lease or find subtenants for the unused space.

[2] Non-cash charges and credits for lease exit and other related costs primarily represent deferred rent balances recognized as expense credits at the cease-use date.