Condensed Consolidated Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 01, 2018	Apr. 02, 2017	Apr. 01, 2018	Apr. 02, 2017
Gain (Loss) on Disposition of Business	$ (4.9)	$ 9.6	$ 496.3	$ 9.6
Net revenues:
Total net revenues	6,031.8	5,294.0	12,105.5	11,027.0
Cost of sales including occupancy costs	2,516.0	2,141.2	5,018.9	4,436.2
Store operating expenses	1,789.6	1,586.4	3,526.5	3,224.6
Other operating expenses	134.3	134.7	276.0	280.1
Depreciation and amortization expenses	331.6	253.6	590.4	503.3
General and administrative expenses	405.8	326.8	784.9	683.1
Restructuring Charges	134.7	0.0	162.3	0.0
Total operating expenses	5,312.0	4,442.7	10,359.0	9,127.3
Income from equity investees	52.7	84.1	142.1	168.6
Operating income	772.5	935.4	1,888.6	2,068.3
Gain resulting from acquisition of joint venture	47.6	0.0	1,373.9	0.0
Interest income and other, net	35.5	58.3	123.7	82.4
Interest expense	(35.1)	(22.9)	(61.0)	(46.7)
Earnings before income taxes	815.6	980.4	3,821.5	2,113.6
Income tax expense	155.8	327.6	911.6	709.0
Net earnings including noncontrolling interests	659.8	652.8	2,909.9	1,404.6
Net earnings/(loss) attributable to noncontrolling interests	(0.3)	0.0	(0.4)	(0.3)
Net earnings attributable to Starbucks	$ 660.1	$ 652.8	$ 2,910.3	$ 1,404.9
Earnings per share - basic	$ 0.47	$ 0.45	$ 2.07	$ 0.97
Earnings per share - diluted	$ 0.47	$ 0.45	$ 2.05	$ 0.96
Weighted average shares outstanding:
Basic	1,394.9	1,453.2	1,407.9	1,455.3
Diluted	1,406.6	1,464.8	1,420.5	1,467.7
Cash dividends declared per share	$ 0.3	$ 0.25	$ 0.6	$ 0.5
Company-operated stores [Member]
Net revenues:
Total net revenues	$ 4,828.0	$ 4,195.4	$ 9,569.8	$ 8,664.7
Licensed stores [Member]
Net revenues:
Total net revenues	625.6	546.7	1,308.0	1,149.1
CPG, foodservice and other [Member]
Net revenues:
Total net revenues	$ 578.2	$ 551.9	$ 1,227.7	$ 1,213.2