COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - INVESTMENTS STRATEGY (Details) - Pension Benefits	12 Months Ended
Jun. 30, 2018	Jun. 29, 2019
United States
Defined Benefit Plan Disclosure [Line Items]
Actual investment allocation		100.00%
United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Target investment allocation		2.90%
Actual investment allocation		100.00%
Maximum allowable portfolio annual risk	12.00%
Growth assets \| United States
Defined Benefit Plan Disclosure [Line Items]
Target investment allocation		30.00%
Actual investment allocation		27.00%
Liability hedging assets \| United States
Defined Benefit Plan Disclosure [Line Items]
Target investment allocation		70.00%
Actual investment allocation		73.00%
Liability hedging assets \| United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Target investment allocation		25.00%
Actual investment allocation		29.00%
Common contractual fund \| United Kingdom
Defined Benefit Plan Disclosure [Line Items]
Target investment allocation		75.00%
Actual investment allocation		71.00%

Defined Benefit Plan, Plan Assets, Maximum Allowable Portfolio Annual Risk Percent

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- Definition

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+ References

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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
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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