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Restructuring and Related Charges - Summary of Restructuring Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015
Summary of various restructuring plans
Accrual balance at the beginning of the period	$ 18.0
Restructuring and related charges	21.6	$ 10.5	$ 26.8
Cash Settlements	(28.6)
Non-cash settlements and other adjustments	0.0
Accrual balance at the end of the period	11.0	18.0
OSP Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	0.0
Restructuring and related charges	0.8
Cash Settlements	0.0
Non-cash settlements and other adjustments	0.0
Accrual balance at the end of the period	0.8	0.0
Focused NSE Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	0.0
Restructuring and related charges	21.3
Cash Settlements	(16.5)
Non-cash settlements and other adjustments	0.1
Accrual balance at the end of the period	4.9	0.0
Other Plans
Summary of various restructuring plans
Accrual balance at the beginning of the period	0.0
Restructuring and related charges	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
NE, SE, and Shared Service Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	8.6
Restructuring and related charges	(0.7)
Cash Settlements	(7.7)
Non-cash settlements and other adjustments	0.0
Accrual balance at the end of the period	0.2	8.6
NE and SE Agile Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	0.8
Restructuring and related charges	(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
NE, SE, and Shared Separation Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	1.4
Restructuring and related charges	(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
NE Product Strategy Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	1.5
Restructuring and related charges	0.0
Cash Settlements	(0.5)
Non-cash settlements and other adjustments	(0.1)
Accrual balance at the end of the period	0.9	1.5
NE Lease Restructuring Plan
Summary of various restructuring plans
Accrual balance at the beginning of the period	4.0
Restructuring and related charges	0.1
Cash Settlements	(1.5)
Non-cash settlements and other adjustments	0.0
Accrual balance at the end of the period	2.6	4.0
Other Plans Prior to Fiscal 2015
Summary of various restructuring plans
Accrual balance at the beginning of the period	1.7
Restructuring and related charges	0.0
Cash Settlements	(0.6)
Non-cash settlements and other adjustments	0.0
Accrual balance at the end of the period	$ 1.1	$ 1.7

X

- Definition

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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