Equity (Changes in Components Of Accumulated Other Comprehensive Income, Net Of Tax) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption	$ (2.2)	$ 17.3	$ 495.6
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(5,314.5)	(7,799.4)	(6,231.0)	$ 1,175.8
Other comprehensive income/(loss)	511.8	133.9	(173.0)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption		(0.7)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	1.5	5.7	3.9	(4.9)
Net gains/(losses) recognized in OCI before reclassifications, net of tax	(2.7)	6.5	8.2
Net (gains)/losses reclassified from AOCI to earnings, net of tax	(1.5)	(4.0)	0.6
Other comprehensive income/(loss)	(4.2)	2.5	8.8
Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption		3.0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	158.3	(82.1)	11.0	17.7
Net gains/(losses) recognized in OCI before reclassifications, net of tax	240.2	(95.0)	(10.7)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	0.2	(1.1)	4.0
Other comprehensive income/(loss)	240.4	(96.1)	(6.7)
Accumulated Net Investment Hedge Gain (Loss) Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption		2.5
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	48.6	11.5	(10.1)	19.6
Net gains/(losses) recognized in OCI before reclassifications, net of tax	47.1	28.9	(29.7)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	(10.0)	(9.8)	0.0
Other comprehensive income/(loss)	37.1	19.1	(29.7)
Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption		0.0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(61.2)	(299.7)	(508.1)	(362.7)
Net gains/(losses) recognized in OCI before reclassifications, net of tax	190.4	208.4	(143.7)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	48.1	0.0	(1.7)
Other comprehensive income/(loss)	238.5	208.4	(145.4)
Accumulated Other Comprehensive Income/(Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Pronouncement in Period of Adoption	0.0	4.8	0.0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	147.2	(364.6)	(503.3)	$ (330.3)
Net gains/(losses) recognized in OCI before reclassifications, net of tax	475.0	148.8	(175.9)
Net (gains)/losses reclassified from AOCI to earnings, net of tax	36.8	(14.9)	2.9
Other comprehensive income/(loss)	$ 511.8	$ 133.9	$ (173.0)