Fair Value Measurements (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Jun. 27, 2020
Not Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of total debt	$ 15,800,000	$ 16,300,000
Carrying value of total debt	13,700,000	14,400,000
Recurring Fair Value Measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	5,507,663	5,545,687
Other assets	24,354	36,143
Total assets at fair value	5,532,017	5,581,830
Recurring Fair Value Measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	5,038,629	5,245,487
Other assets	24,354	36,143
Total assets at fair value	5,062,983	5,281,630
Recurring Fair Value Measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	469,034	300,200
Other assets	0	0
Total assets at fair value	469,034	300,200
Recurring Fair Value Measurements | 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