COMPANY-SPONSORED EMPLOYEE BENEFIT PLANS - ASSUMPTIONS (Details)	12 Months Ended
	Jul. 03, 2021	Jun. 27, 2020	Jun. 29, 2019
Pension Benefits | United States
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.12%	2.94%
Rate of compensation increase	2.56%	2.56%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	2.94%	3.70%	4.28%
Expected rate of return	4.75%	5.00%	5.00%
Rate of compensation increase	2.56%	2.56%	2.62%
Discount rate used to calculate next year benefit costs	3.12%
Expected rate of return on plan assets used in calculating net periodic benefit cost for next fiscal year	4.50%
Pension Benefits | United Kingdom
Weighted-average assumptions used to determine benefit obligations
Discount rate	1.90%	1.60%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	1.60%	2.30%	2.85%
Expected rate of return	2.55%	4.55%	4.55%
Discount rate used to calculate next year benefit costs	1.90%
Expected rate of return on plan assets used in calculating net periodic benefit cost for next fiscal year	3.30%
Supplemental executive retirement plan
Weighted-average assumptions used to determine benefit obligations
Discount rate	2.91%	2.91%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	2.91%	3.62%	4.41%
Discount rate used to calculate next year benefit costs	2.91%