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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
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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.

+ References

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Pension and retirement plans (Plan Asset Allocations) (Details)		12 Months Ended
	Jul. 04, 2021	Jul. 03, 2021	Jun. 27, 2020
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	7.00%	7.40%	7.70%
Return seeking investments
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations		69.00%	62.00%
Target allocation percentage of investments return seeking investments		65.00%
Fixed income investments
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations		29.00%	36.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocations		2.00%	2.00%