Stock-Based Compensation - Full Value Awards Activity (Details) - USD ($) $ / shares in Units, shares in Millions	12 Months Ended
Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Full Value Awards - Total
Number of Shares
Balance at beginning of period (in shares)	6.7	6.4	7.3
Awards granted (in shares)	3.9	4.4	4.1
Awards vested (in shares)	(4.1)	(3.8)	(4.2)
Awards forfeited (in shares)	(0.4)	(0.3)	(0.8)
Balance at end of period (in shares)	6.1	6.7	6.4
Weighted-average Grant-dated Fair Value
Balance at beginning of period (in dollars per share)	$ 10.81	$ 8.93	$ 7.17
Awards granted (in dollars per share)	13.76	11.52	10.01
Awards vested (in dollars per share)	10.40	8.61	7.10
Awards forfeited (in dollars per share)	11.44	9.63	8.01
Balance at end of period (in dollars per share)	$ 12.97	$ 10.81	$ 8.93
Full Value Awards - Total \| Minimum
Weighted-average Grant-dated Fair Value
Vesting period	1 year
Full Value Awards - Total \| Maximum
Weighted-average Grant-dated Fair Value
Vesting period	4 years
Full Value Awards - Performance shares
Number of Shares
Balance at beginning of period (in shares)	1.0	1.1	1.0
Awards granted (in shares)	0.7	0.5	0.8
Awards vested (in shares)	(0.7)	(0.6)	(0.6)
Awards forfeited (in shares)	0.0	0.0	(0.1)
Balance at end of period (in shares)	1.0	1.0	1.1
Weighted-average Grant-dated Fair Value
Aggregate grant-date fair value (in dollars)	$ 0	$ 1,400,000
MSUs
Weighted-average Grant-dated Fair Value
Aggregate grant-date fair value (in dollars)	$ 7,700,000	$ 6,200,000	$ 4,700,000
MSUs \| Minimum
Weighted-average Grant-dated Fair Value
Vesting period	3 years
MSUs \| Maximum
Weighted-average Grant-dated Fair Value
Vesting period	4 years
Full Value Awards - Non-performance shares
Number of Shares
Balance at beginning of period (in shares)	5.7	5.3	6.3
Awards granted (in shares)	3.2	3.9	3.3
Awards vested (in shares)	(3.4)	(3.2)	(3.6)
Awards forfeited (in shares)	(0.4)	(0.3)	(0.7)
Balance at end of period (in shares)	5.1	5.7	5.3

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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