FAIR VALUE MEASUREMENTS (Details) - Recurring Fair Value Measurements - USD ($) $ in Thousands	Dec. 26, 2020	Jun. 27, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 5,228,419	$ 5,545,687
Other assets	22,451	36,143
Total assets at fair value	5,250,870	5,581,830
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	4,738,442	5,245,487
Other assets	22,451	36,143
Total assets at fair value	4,760,893	5,281,630
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	489,977	300,200
Other assets	0	0
Total assets at fair value	489,977	300,200
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	0	0
Other assets	0	0
Total assets at fair value	$ 0	$ 0