Restructuring and Related Charges (Details) $ in Millions	3 Months Ended						9 Months Ended		18 Months Ended
	Apr. 02, 2016 USD ($)	Jan. 02, 2016 USD ($) employee	Mar. 28, 2015 USD ($)	Jun. 28, 2014 employee	Mar. 29, 2014 employee	Dec. 28, 2013 employee	Apr. 02, 2016 USD ($)	Mar. 28, 2015 USD ($)	Apr. 02, 2016 USD ($) employee	Jun. 27, 2015 USD ($)	Sep. 27, 2014 company
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 27.2
Restructuring Charges	$ (0.1)		$ 7.8				1.7	$ 18.0
Cash Settlements							(16.4)
Non-cash Settlements and Other Adjustments							(0.2)
Accrual balance at the end of the period	12.3						12.3		$ 12.3
Long-term restructuring accrual	5.3						5.3		5.3	$ 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	0.0						0.2
Cash Settlements							(1.0)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	4.4						4.4		4.4
Contractual obligations under the operating lease, net of sublease income, fair value	4.4						4.4		4.4
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	0.0						(0.1)
Cash Settlements							(0.8)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	1.5						1.5		1.5
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	0.0	$ 3.0					3.0
Cash Settlements							(1.1)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	1.9						1.9		1.9
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	(0.1)						(0.6)
Cash Settlements							(11.7)
Non-cash Settlements and Other Adjustments							(0.2)
Accrual balance at the end of the period	2.4						2.4		$ 2.4
Number of employees expected to be reduced (employee) | employee									330
Workforce Reduction | NE Realignment Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.6
Restructuring Charges	0.0						(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							(0.5)
Non-cash Settlements and Other Adjustments							0.0
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	0.0						(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