Equity (Changes in Components Of Accumulated Other Comprehensive Income, Net Of Tax) (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 01, 2017	Oct. 02, 2016	Sep. 27, 2015	Sep. 28, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 5,457.0	$ 5,890.7	$ 5,819.8	$ 5,273.7
Net gains/(losses) in AOCI, beginning of period	(108.4)
Other comprehensive income/(loss)	(47.2)	91.0	(224.7)
Net gains/(losses) in AOCI, end of period	(155.6)	(108.4)
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(2.5)	1.1	(0.1)	(0.4)
Net gains/(losses) recognized in OCI before reclassifications, net of tax	(6.6)	2.2	0.9
Net (gains)/losses reclassified from AOCI to earnings, net of tax	3.0	(1.0)	(0.6)
Other comprehensive income/(loss)	(3.6)	1.2	0.3
Purchase of noncontrolling interest			0.0
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(4.1)	10.9	25.6	46.3
Net gains/(losses) recognized in OCI before reclassifications, net of tax	40.6	(82.1)	30.8
Net (gains)/losses reclassified from AOCI to earnings, net of tax	(55.6)	67.4	(51.5)
Other comprehensive income/(loss)	(15.0)	(14.7)	(20.7)
Purchase of noncontrolling interest			0.0
Accumulated Net Investment Hedge Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		1.3	1.3	3.2
Net gains/(losses) in AOCI, beginning of period	1.3	1.3
Net gains/(losses) recognized in OCI before reclassifications, net of tax	12.7	0.0	2.7
Net (gains)/losses reclassified from AOCI to earnings, net of tax	0.0	0.0	(4.6)
Other comprehensive income/(loss)	12.7	0.0	(1.9)
Purchase of noncontrolling interest			0.0
Net gains/(losses) in AOCI, end of period	14.0	1.3	1.3
Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest		(121.7)	(226.2)	(23.8)
Net gains/(losses) in AOCI, beginning of period	(121.7)	(226.2)
Net gains/(losses) recognized in OCI before reclassifications, net of tax	(40.7)	104.5	(185.6)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	(0.6)	0.0	14.3
Other comprehensive income/(loss)	(41.3)	104.5	(171.3)
Purchase of noncontrolling interest			(31.1)
Net gains/(losses) in AOCI, end of period	(163.0)	(121.7)	(226.2)
Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	5,450.1	5,884.0	5,818.0	$ 5,272.0
Net gains/(losses) in AOCI, beginning of period	(108.4)	(199.4)	25.3
Net gains/(losses) recognized in OCI before reclassifications, net of tax	6.0	24.6	(151.2)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	(53.2)	66.4	(42.4)
Other comprehensive income/(loss)	(47.2)	91.0	(193.6)
Purchase of noncontrolling interest			(31.1)
Net gains/(losses) in AOCI, end of period	$ (155.6)	$ (108.4)	$ (199.4)

Impact to accumulated other comprehensive income due to the purchase of noncontrolling interest

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Amount after tax, before reclassification adjustments of other comprehensive income (loss).

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

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