Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 25, 2015	Sep. 26, 2014	Sep. 27, 2013
Schedule of Significant Accounting Policies [Line Items]
Shipping costs	$ 42.3	$ 47.8	$ 46.9
Foreign currency gain (loss)	30.7	3.8	(12.8)
Foreign currency transactions gain (loss), derivative instruments	$ (24.8)	$ (6.3)	$ 10.1
Customer relationships
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	12 years
Minimum | Completed Technology
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	5 years
Minimum | Licensing Agreements
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	8 years
Minimum | Trademarks
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	13 years
Minimum | Buildings
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Minimum | Leasehold improvements
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	1 year
Minimum | Capitalized software
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	1 year
Minimum | Machinery and equipment
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	1 year
Maximum | Completed Technology
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	25 years
Maximum | Licensing Agreements
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	30 years
Maximum | Trademarks
Schedule of Significant Accounting Policies [Line Items]
Finite-lived intangible assets - useful lives	30 years
Maximum | Buildings
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	45 years
Maximum | Leasehold improvements
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	20 years
Maximum | Capitalized software
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	10 years
Maximum | Machinery and equipment
Schedule of Significant Accounting Policies [Line Items]
Property, plant and equipment, useful life	20 years