Restructuring and Related Charges (Details) $ in Millions	3 Months Ended					6 Months Ended		15 Months Ended
	Jan. 02, 2016 USD ($) employee	Dec. 27, 2014 USD ($)	Jun. 28, 2014 employee	Mar. 29, 2014 employee	Dec. 28, 2013 employee	Jan. 02, 2016 USD ($)	Dec. 27, 2014 USD ($)	Jan. 02, 2016 USD ($) employee	Aug. 01, 2015 company	Jun. 27, 2015 USD ($)
Summary of various restructuring plans
Accrual balance at the beginning of the period						$ 27.2
Restructuring Charges	$ 1.4	$ 9.1				1.8	$ 10.2
Cash Settlements						(13.4)
Non-cash Settlements and Other Adjustments						(0.3)
Accrual balance at the end of the period	15.3					15.3		$ 15.3
Long-term restructuring accrual	5.9					5.9		5.9		$ 8.2
Number of new public entities | company									2
NE Realignment Plan
Summary of various restructuring plans
Number of employees expected to be reduced (employee) | employee			100
Shared Services Restructuring Plan
Summary of various restructuring plans
Number of employees expected to be reduced (employee) | employee			40
NE Product Strategy Restructuring Plan
Summary of various restructuring plans
Number of employees expected to be reduced (employee) | employee				60
NE Lease Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						5.2
Restructuring Charges	0.1					0.2
Cash Settlements						(0.7)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	4.7					4.7		4.7
Contractual obligations under the operating lease, net of sublease income, fair value	4.7					4.7		4.7
Central Finance and IT Restructuring Plan
Summary of various restructuring plans
Number of employees expected to be reduced (employee) | employee					20
Plans Prior to Fiscal 2014
Summary of various restructuring plans
Accrual balance at the beginning of the period						2.4
Restructuring Charges	(0.1)					(0.1)
Cash Settlements						(0.3)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	2.0					2.0		2.0
Workforce Reduction | NE and SE Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						0.0
Restructuring Charges	3.0					3.0
Cash Settlements						(0.4)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	$ 2.6					2.6		2.6
Number of employees expected to be reduced (employee) | employee	50
Workforce Reduction | NE, SE, and Shared Separation Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						14.9
Restructuring Charges	$ (0.8)					(0.5)
Cash Settlements						(10.3)
Non-cash Settlements and Other Adjustments						(0.2)
Accrual balance at the end of the period	3.9					3.9		$ 3.9
Number of employees expected to be reduced (employee) | employee								340
Workforce Reduction | NE Realignment Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						0.6
Restructuring Charges	(0.1)					(0.1)
Cash Settlements						(0.5)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	0.0					0.0		$ 0.0
Workforce Reduction | Shared Services Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						0.7
Restructuring Charges	0.0					0.0
Cash Settlements						(0.7)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	0.0					0.0		0.0
Workforce Reduction | NE Product Strategy Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						2.3
Restructuring Charges	0.0					0.0
Cash Settlements						(0.4)
Non-cash Settlements and Other Adjustments						(0.1)
Accrual balance at the end of the period	1.8					1.8		1.8
Workforce Reduction | Central Finance and IT Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period						1.1
Restructuring Charges	(0.7)					(0.7)
Cash Settlements						(0.1)
Non-cash Settlements and Other Adjustments						0.0
Accrual balance at the end of the period	$ 0.3					$ 0.3		$ 0.3