Goodwill and Intangible Assets, Net (Tables)

12 Months Ended

Oct. 02, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

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

	October 2, 2016					September 27, 2015					Life (in years)
	Gross Carrying Value		Accumulated Amortization			Gross Carrying Value		Accumulated Amortization
Amortizable intangible assets
Completed technology	$	907.7	$	(335.1	)	$	489.7	$	(251.7	)	2 to 15
Customer relationships	338.0		(219.2		)	316.2		(197.1		)	4 to 15
Backlog, trade name and other	24.9		(22.7		)	18.8		(18.1		)	1 to 5
	$	1,270.6	$	(577.0	)	$	824.7	$	(466.9	)
Non-amortizable intangible assets
Goodwill	$	2,479.4				$	1,139.3
In-process research and development	$	241.0				$	—

Reconciliation of Goodwill

A reconciliation of our goodwill for the years ended October 2, 2016 and September 27, 2015 is as follows (amounts in millions):

	October 2, 2016			September 27, 2015
Beginning balance	$	1,139.3		$	885.6
Additions from acquisitions	1,472.3			253.7
Reductions from divestitures	(125.0		)	—
Carrying value of goodwill classified as assets held for sale	(7.2		)	—
Ending balance	$	2,479.4		$	1,139.3

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 October 2, 2016 is as follows (amounts in millions):

	2016		2015		2014
Completed technology	$	108.7	$	50.4	$	43.9
Customer relationships	46.5		44.6		45.0
Backlog, trade name and other	6.0		1.5		3.9
	$	161.2	$	96.5	$	92.8

Estimated Amortization Expense

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

2017		2018		2019		2020		2021		Thereafter
$	174.3	$	130.7	$	111.1	$	105.8	$	105.8	$	65.7