Goodwill and Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Millions	Dec. 30, 2016	Sep. 30, 2016
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	$ 10,322.2	$ 10,331.4
Accumulated amortization	1,755.8	1,583.2
Indefinite-lived intangible assets, gross	434.1	434.1
Trademarks
Schedule of Intangible Asset by Major Class [Line Items]
Indefinite-lived intangible assets, gross	35.0	35.0
In-process Research and Development
Schedule of Intangible Asset by Major Class [Line Items]
Indefinite-lived intangible assets, gross	399.1	399.1
Completed Technology
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	10,028.7	10,028.8
Accumulated amortization	1,617.1	1,446.2
Licenses
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	177.1	185.1
Accumulated amortization	112.7	112.3
Customer Relationships
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	27.6	28.6
Accumulated amortization	8.4	8.0
Trademarks
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	82.1	82.2
Accumulated amortization	10.9	10.0
Other
Schedule of Intangible Asset by Major Class [Line Items]
Finite-lived intangible assets, gross	6.7	6.7
Accumulated amortization	$ 6.7	$ 6.7