Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 02, 2017	Mar. 27, 2016	Apr. 02, 2017	Mar. 27, 2016
Net revenues:
Total net revenues	$ 5,294.0	$ 4,993.2	$ 11,027.0	$ 10,366.8
Cost of sales including occupancy costs	2,141.2	2,010.3	4,436.2	4,196.5
Store operating expenses	1,586.4	1,466.4	3,224.6	2,972.6
Other operating expenses	134.7	139.6	280.1	285.8
Depreciation and amortization expenses	253.6	247.8	503.3	483.3
General and administrative expenses	326.8	330.5	683.1	636.0
Total operating expenses	4,442.7	4,194.6	9,127.3	8,574.2
Income from equity investees	84.1	65.6	168.6	129.7
Operating income	935.4	864.2	2,068.3	1,922.3
Interest income and other, net	67.9	14.5	92.0	22.5
Interest expense	(22.9)	(18.3)	(46.7)	(34.8)
Earnings before income taxes	980.4	860.4	2,113.6	1,910.0
Income tax expense	327.6	285.4	709.0	647.4
Net earnings including noncontrolling interests	652.8	575.0	1,404.6	1,262.6
Net earnings/(loss) attributable to noncontrolling interests	0.0	(0.1)	(0.3)	0.0
Net earnings attributable to Starbucks	$ 652.8	$ 575.1	$ 1,404.9	$ 1,262.6
Earnings per share - basic	$ 0.45	$ 0.39	$ 0.97	$ 0.85
Earnings per share - diluted	$ 0.45	$ 0.39	$ 0.96	$ 0.84
Weighted average shares outstanding:
Basic	1,453.2	1,472.1	1,455.3	1,479.0
Diluted	1,464.8	1,486.6	1,467.7	1,495.0
Cash dividends declared per share	$ 0.250	$ 0.20	$ 0.50	$ 0.4
Company-operated stores [Member]
Net revenues:
Total net revenues	$ 4,195.4	$ 3,944.2	$ 8,664.7	$ 8,154.8
Licensed stores [Member]
Net revenues:
Total net revenues	546.7	493.1	1,149.1	1,033.8
CPG, foodservice and other [Member]
Net revenues:
Total net revenues	$ 551.9	$ 555.9	$ 1,213.2	$ 1,178.2