Stock-Based Compensation - Full Value Awards Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Full Value Awards - Total
Full Value Awards, Total number of shares
Outstanding at the beginning of the period (in shares)	7.3	9.4	8.8
Awards granted (in shares)	4.1	4.3	6.8
Awards vested (in shares)	(4.2)	(5.1)	(5.5)
Awards forfeited (in shares)	(0.8)	(1.3)	(2.2)
Net adjustment due to the separation (in shares)			1.5
Outstanding at the end of the period (in shares)	6.4	7.3	9.4
Full Value Awards, Weighted-average grant-dated fair value
Outstanding at the beginning of the period (in dollars per share)	$ 7.17	$ 6.55	$ 12.36
Awards granted (in dollars per share)	10.01	7.86	5.75
Awards vested (in dollars per share)	7.10	6.66	6.01
Awards forfeited (in dollars per share)	8.01	6.83	7.89
Outstanding at the end of the period (in dollars per share)	$ 8.93	$ 7.17	$ 6.55
Full Value Awards - Total \| Minimum
Full Value Awards, Weighted-average grant-dated fair value
Vesting period	1 year
Full Value Awards - Total \| Maximum
Full Value Awards, Weighted-average grant-dated fair value
Vesting period	4 years
Full Value Awards - Performance shares
Full Value Awards, Total number of shares
Outstanding at the beginning of the period (in shares)	1.0	1.0	1.0
Awards granted (in shares)	0.8	0.6	0.7
Awards vested (in shares)	(0.6)	(0.6)	(0.7)
Awards forfeited (in shares)	(0.1)	0.0	(0.4)
Net adjustment due to the separation (in shares)			0.4
Outstanding at the end of the period (in shares)	1.1	1.0	1.0
Full Value Awards, Weighted-average grant-dated fair value
Aggregate grant-date fair value (in dollars)	$ 1.4
Full Value Awards - Non-performance shares
Full Value Awards, Total number of shares
Outstanding at the beginning of the period (in shares)	6.3	8.4	7.8
Awards granted (in shares)	3.3	3.7	6.1
Awards vested (in shares)	(3.6)	(4.5)	(4.8)
Awards forfeited (in shares)	(0.7)	(1.3)	(1.8)
Net adjustment due to the separation (in shares)			1.1
Outstanding at the end of the period (in shares)	5.3	6.3	8.4
MSUs
Full Value Awards, Weighted-average grant-dated fair value
Aggregate grant-date fair value (in dollars)	$ 4.7	$ 3.3	$ 3.7
MSUs \| Minimum
Full Value Awards, Weighted-average grant-dated fair value
Vesting period	3 years
MSUs \| Maximum
Full Value Awards, Weighted-average grant-dated fair value
Vesting period	4 years

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Adjustment For Spin-Off

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The total fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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