Income Taxes (Tax Effect of Temporary Differences and Carryforwards That Comprise Significant Portions of Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Oct. 01, 2017	Oct. 02, 2016
Tax Credit Carryforward [Line Items]
Tax credit carryforward	$ 18.0
Foreign net operating loss carryforwards	262.2
Property, plant and equipment	71.3	$ 56.8
Accrued occupancy costs	118.0	104.5
Accrued compensation and related costs	95.0	88.6
Stored value card liability	130.7	124.2
Stock-based compensation	125.9	138.3
Net operating losses	80.8	79.0
Litigation charge	792.0	862.3
Other	180.8	197.4
Total	1,594.5	1,651.1
Valuation allowance	(80.1)	(70.3)
Total deferred tax asset, net of valuation allowance	1,514.4	1,580.8
Property, plant and equipment	(477.2)	(445.7)
Intangible assets and goodwill	(159.0)	(175.9)
Other	(89.1)	(88.5)
Total	(725.3)	(710.1)
Net deferred tax asset	789.1	870.7
Long-term deferred income tax assets	795.4	885.4
Long-term deferred income tax liabilities	(6.3)	$ (14.7)
expirationbeginningfiscal2024 [Member]
Tax Credit Carryforward [Line Items]
Tax credit carryforward	16.0
expirationindefinite [Member]
Tax Credit Carryforward [Line Items]
Foreign net operating loss carryforwards	$ 207.0