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Employee Pension and Other Benefit Plans - Weighted Average Assumptions (Details) - Pension Benefit Plans
12 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jul. 02, 2016
Used to determine net period cost at end of year:      
Discount rate 1.90% 2.10% 2.10%
Expected long-term return on plan assets 5.70% 4.80% 5.30%
Rate of pension increase 2.30% 2.20% 2.30%
Used to determine benefit obligation at end of year:      
Discount rate 1.90% 2.00% 1.70%
Rate of pension increase 2.30% 2.30% 2.10%