Fair Value (Tables)

9 Months Ended

Jul. 03, 2015

Fair Value Disclosures [Abstract]

Schedule of Fair Value Assets and Liabilities Measured on Recurring Basis

As of July 3, 2015, assets and liabilities recorded at fair value on a recurring basis consisted of the following (in millions):         

			Fair Value Measurements
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Money market funds	$	594.6	$	594.6	$	—	$	—
Auction rate security	2.3		—		—		2.3
Foreign currency derivative asset	3.6		—		—		3.6
Total	$	600.5	$	594.6	$	—	$	5.9
Liabilities
Purchase obligation recorded for business combinations	$	75.0	$	—	$	—	$	75.0
Foreign currency derivative liability	3.3		—		—		3.3
Contingent consideration liability recorded for business combinations	0.5		—		—		0.5
Total	$	78.8	$	—	$	—	$	78.8

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

The following table summarizes changes to the fair value of the Level 3 assets (in millions):

	Auction rate security		Foreign currency derivative
Balance as of October 3, 2014	$	2.3	$	0.7
Changes in fair value included in earnings	—		2.9
Balance as of July 3, 2015	$	2.3	$	3.6

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The following table summarizes changes to the fair value of the Level 3 liabilities (in millions):

	Purchase obligation		Foreign currency derivative		Contingent consideration
Balance as of October 3, 2014	$	74.0	$	0.7	$	—
Changes in fair value included in earnings	1.0		2.6		—
Purchases and additions	—		—		0.5
Balance as of July 3, 2015	$	75.0	$	3.3	$	0.5