Equity And Cost Investments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 02, 2011	Oct. 03, 2010	Sep. 27, 2009
Ownership interest in equity investees	50.00%
Revenues generated from related parties, net of eliminations	$ 151.6	$ 125.7	$ 125.3
Related costs of sales, net of eliminations	83.2	65.3	64.9
Accounts receivable from equity investees	31.9	31.4
Investment of equity interests	37.9
Equity method investments	334.4	308.1
Percentage of investees financial information presented for equity method investments	100.00%
Starbucks Coffee Japan, Ltd. [Member]
Ownership interest in equity investees	39.80%
Equity method investments	182.0
Equity method investment, quoted market value	$ 334
The North America Coffee Partnership [Member]
Ownership interest in equity investees	50.00%

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Investment Of Equity Interests Cost Method Investments

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Percentage Of Investees Financial Information Presented For Equity Method Investments

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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