Acquisitions and Divestitures (Allocation of Total Consideration to Fair Value of Assets Acquired and Liabilities Assumed) (Details) $ in Millions, ¥ in Billions							3 Months Ended						12 Months Ended
	Jun. 12, 2015 JPY (¥)	Jun. 12, 2015 USD ($)	Dec. 29, 2014 JPY (¥)	Dec. 29, 2014 USD ($)	Oct. 31, 2014 JPY (¥)	Oct. 31, 2014 USD ($)	Sep. 27, 2015 JPY (¥)	Sep. 27, 2015 USD ($)	Jun. 28, 2015 JPY (¥)	Jun. 28, 2015 USD ($)	Mar. 31, 2013 USD ($)	Mar. 31, 2013 USD ($)	Sep. 27, 2015 USD ($)	Dec. 31, 2012 USD ($)
Starbucks Coffee Japan Ltd [Member]
Cash paid to acquire additional ownership interest	¥ 13.5	$ 109.0	¥ 31.0	$ 258.0	¥ 55.0	$ 508.7	¥ 3.2	$ 26.0	¥ 9.6	$ 78.0
Fair value of preexisting equity interest						577.0
Cash and cash equivalents						224.4
Accounts receivable, net						37.4
Inventories						26.4
Prepaid expenses and other current assets						35.7
Deferred income taxes, net (current)						23.4
Property, plant and equipment						282.9
Other long-term assets						141.4
Other intangible assets, finite-lived						323.0
Goodwill						815.6							$ 730.5
Total assets acquired						1,910.2
Accounts payable						(54.5)
Accrued liabilities						(115.9)
Stored value card liability						(36.5)
Deferred income taxes (noncurrent)						(90.7)
Other long-term liabilities						(115.8)
Total liabilities assumed						413.4
Noncontrolling interest						(411.1)
Total consideration						$ 1,085.7
Teavana [Member]
Cash paid to acquire additional ownership interest												$ 615.8
Cash and cash equivalents														$ 47.0
Inventories														21.3
Property, plant and equipment														59.7
Other intangible assets														120.8
Goodwill											$ 467.5
Other current and noncurrent assets														19.8
Current liabilities														(36.0)
Deferred income taxes (noncurrent)														(54.3)
Long-term debt														(35.2)
Other long-term liabilities														$ (7.0)
Total consideration											$ 603.6