Discontinued Operations - Supplemental Cash Flow and Other Disclosures (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 31, 2016	Jan. 02, 2016	Dec. 31, 2016	Jan. 02, 2016
Discontinued Operations
Depreciation expense			$ 15.5	$ 21.7
Amortization of other intangibles	$ 3.4	$ 3.7	6.9	7.5
Stock-based compensation expense	$ 9.1	$ 8.9	$ 17.8	24.9
Spinoff \| Discontinued Operations \| Lumentum
Discontinued Operations
Depreciation expense				3.7
Amortization of other intangibles				0.6
Stock-based compensation expense				1.6
Capital expenditures				$ 5.8

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Amount of capital expenditure attributable to discontinued operations.

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The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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