Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 30, 2019	Jun. 30, 2018	Mar. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of total debt	$ 8,300,000
Not Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of total debt	8,900,000	$ 8,400,000	$ 9,300,000
Carrying value of total debt	8,700,000	8,300,000	9,100,000
Recurring Fair Value Measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	105,917	199,404	433,718
Prepaid expenses and other current assets			43,364
Other assets	28,155	163,519	102,211
Total assets at fair value	134,072	362,923	579,293
Recurring Fair Value Measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	105,717	169,214	384,528
Prepaid expenses and other current assets			43,364
Other assets	28,155	163,519	102,211
Total assets at fair value	133,872	332,733	530,103
Recurring Fair Value Measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	200	30,190	49,190
Prepaid expenses and other current assets			0
Other assets	0	0	0
Total assets at fair value	200	30,190	49,190
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	0
Prepaid expenses and other current assets			0
Other assets	0	0	0
Total assets at fair value	$ 0	$ 0	$ 0