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Restructuring and Related Charges (Details) $ in Millions	3 Months Ended						6 Months Ended
	Sep. 30, 2017 USD ($)	Jul. 01, 2017 USD ($) employee	Oct. 01, 2016 USD ($)	Jul. 02, 2016 employee	Jan. 02, 2016 employee	Mar. 29, 2014 employee	Apr. 01, 2017 USD ($) employee
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 11.0
Restructuring Charges (Benefits)	$ 1.5		$ 0.0
Cash Settlements	(3.9)
Non-cash Settlements and Other Adjustments	0.5
Accrual balance at the end of the period	9.1		11.0
Long-term restructuring accrual	2.3	$ 2.2
OSP Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.8
Restructuring Charges (Benefits)	0.0
Cash Settlements	0.0
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	0.8		0.8
Focused NSE Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 4.9
Restructuring Charges (Benefits)	1.2
Cash Settlements	(3.1)
Non-cash Settlements and Other Adjustments	0.4
Accrual balance at the end of the period	3.4		4.9
Number of employees impacted (employee) | employee		30					320
Fair value of remaining contractual obligation	1.3
Other Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 0.0
Restructuring Charges (Benefits)	0.4
Cash Settlements	(0.2)
Non-cash Settlements and Other Adjustments	0.1
Accrual balance at the end of the period	0.3		0.0
NE, SE and Shared Services Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.2
Restructuring Charges (Benefits)	(0.1)
Cash Settlements	(0.1)
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	0.0		0.2
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							0.4
Restructuring Charges (Benefits)	0.0
Cash Settlements	0.0
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	0.4		0.4
Number of employees impacted (employee) | employee					40
Plans Prior to Fiscal 2015
Summary of various restructuring plans
Accrual balance at the end of the period	1.1
NE Product Strategy Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							0.9
Restructuring Charges (Benefits)	0.0
Cash Settlements	(0.1)
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	0.8		0.9
Number of employees impacted (employee) | employee						60
NE Lease Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period							2.6
Restructuring Charges (Benefits)	0.0
Cash Settlements	(0.3)
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	2.3		2.6
Contractual obligations under the operating lease, net of sublease income, fair value	2.3
Other Plans
Summary of various restructuring plans
Accrual balance at the beginning of the period							$ 1.2
Restructuring Charges (Benefits)	0.0
Cash Settlements	(0.1)
Non-cash Settlements and Other Adjustments	0.0
Accrual balance at the end of the period	$ 1.1		$ 1.2

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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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