Restructuring and Related Charges (Details) $ in Millions	3 Months Ended					6 Months Ended	9 Months Ended		18 Months Ended
	Apr. 01, 2017 USD ($)	Jul. 02, 2016 USD ($) employee	Apr. 02, 2016 USD ($)	Jan. 02, 2016 employee	Mar. 29, 2014 employee	Apr. 01, 2017 USD ($)	Apr. 01, 2017 USD ($) employee	Apr. 02, 2016 USD ($)	Apr. 02, 2016 employee	Sep. 27, 2014 company
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 18.0
Restructuring Charges (Benefits)	$ 18.4		$ (0.1)				20.2	$ 1.7
Cash Settlements							(22.3)
Non-cash Settlements and Other Adjustments							(0.1)
Accrual balance at the end of the period	15.8	$ 18.0				$ 15.8	15.8
Long-term restructuring accrual	2.7	4.7				2.7	2.7
Number of new public entities (in company) | company										2
Focused NSE Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.0
Restructuring Charges (Benefits)	19.3					20.6	20.7
Cash Settlements							(11.0)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	9.7	0.0				9.7	$ 9.7
Number of employees impacted (employee) | employee							300
Other Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 0.0
Restructuring Charges (Benefits)	0.0						0.4
Cash Settlements							(0.4)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	0.0	0.0				0.0	0.0
NE, SE and Shared Services Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							8.6
Restructuring Charges (Benefits)	(0.8)						(0.7)
Cash Settlements							(7.5)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	0.4	$ 8.6				0.4	0.4
Number of employees impacted (employee) | employee		170
NE and SE Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.8
Restructuring Charges (Benefits)	(0.1)						(0.1)
Cash Settlements							(0.3)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	0.4	$ 0.8				0.4	0.4
Number of employees impacted (employee) | employee				40
NE, SE, and Shared Separation Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							1.4
Restructuring Charges (Benefits)	0.0						(0.2)
Cash Settlements							(1.1)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	0.1	1.4				0.1	0.1
Number of employees impacted (employee) | employee									330
Plans Prior to Fiscal 2015
Summary of various restructuring plans
Accrual balance at the end of the period	1.2					1.2	1.2
NE Product Strategy Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							1.5
Restructuring Charges (Benefits)	0.0						0.0
Cash Settlements							(0.4)
Non-cash Settlements and Other Adjustments							(0.1)
Accrual balance at the end of the period	1.0	1.5				1.0	1.0
Number of employees impacted (employee) | employee					60
NE Lease Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							4.0
Restructuring Charges (Benefits)	0.0						0.1
Cash Settlements							(1.1)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	3.0	4.0				3.0	3.0
Contractual obligations under the operating lease, net of sublease income, fair value	3.0					3.0	3.0
Other Plans
Summary of various restructuring plans
Accrual balance at the beginning of the period							1.7
Restructuring Charges (Benefits)	0.0						0.0
Cash Settlements							(0.5)
Non-cash Settlements and Other Adjustments							0.0
Accrual balance at the end of the period	$ 1.2	$ 1.7				$ 1.2	$ 1.2