Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

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- Definition

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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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

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-Publisher FASB
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Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

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Pension and retirement plans (Plan Asset Allocations) (Details)		12 Months Ended
	Jul. 01, 2019	Jun. 29, 2019	Jun. 30, 2018
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	7.70%	8.00%	8.00%
Equity Securities.
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations		58.00%	60.00%
Target allocation percentage of investments equity securities		65.00%
Fixed income debt securities
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations		42.00%	39.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations			1.00%