Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Sep. 27, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and intangible assets, net consisted of the following components (amounts in millions):

	September 27, 2015					September 28, 2014					Life (in years)
	Gross Carrying Value		Accumulated Amortization			Gross Carrying Value		Accumulated Amortization
Amortizable intangible assets
Completed technology	$	489.7	$	(251.7	)	$	402.7	$	(201.3	)	2 to 15
Customer relationships	316.2		(197.1		)	301.8		(152.5		)	4 to 15
Backlog, trade name and other	18.8		(18.1		)	17.9		(16.7		)	1 to 5
	$	824.7	$	(466.9	)	$	722.4	$	(370.5	)
Non-amortizable intangible assets
Goodwill	$	1,139.3				$	885.6

Reconciliation of Goodwill

A reconciliation of our goodwill for the years ended September 27, 2015 and September 28, 2014 is as follows (amounts in millions):

	September 27, 2015		September 28, 2014
Beginning balance	$	885.6	$	790.2
Additions from acquisitions	253.7		95.4
Ending balance	$	1,139.3	$	885.6

Finite-lived Intangible Assets Amortization Expense

Amortization of intangible assets included in operating expenses for each of the three fiscal years in the period ended September 27, 2015 is as follows (amounts in millions):

	2015		2014		2013
Completed technology	$	50.4	$	43.9	$	39.0
Customer relationships	44.6		45.0		42.6
Backlog, trade name and other	1.5		3.9		3.2
	$	96.5	$	92.8	$	84.8

Estimated Amortization Expense

Estimated amortization expense in each of the five succeeding years and thereafter is as follows (amounts in millions):

2016		2017		2018		2019		2020		Thereafter
$	100.8	$	96.6	$	53.2	$	30.8	$	25.6	$	50.8