Fair Value Measurements (Details) - USD ($) $ in Thousands	Dec. 26, 2015	Jun. 27, 2015	Dec. 27, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of total debt	$ 4,400,000
Recurring Fair Value Measurements
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	295,634	$ 4,741,424	$ 4,677,275
Restricted cash		168,274	165,465
Total assets at fair value	299,570	4,922,295	4,847,542
Current portion of long-term debt		1,257,127
Long-term debt	1,241,786	503,379	1,752,118
Total liabilities at fair value	1,248,361	1,760,506	1,752,270
Recurring Fair Value Measurements | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	6,575		152
Recurring Fair Value Measurements | Other assets | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	3,936	12,597	4,802
Recurring Fair Value Measurements | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	234,161	4,677,735	4,655,434
Restricted cash		168,274	165,465
Total assets at fair value	234,161	4,846,009	4,820,899
Current portion of long-term debt		0
Long-term debt	0	0	0
Total liabilities at fair value	0	0	0
Recurring Fair Value Measurements | Level 1 | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	0		0
Recurring Fair Value Measurements | Level 1 | Other assets | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	0	0	0
Recurring Fair Value Measurements | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	61,473	63,689	21,841
Restricted cash		0	0
Total assets at fair value	65,409	76,286	26,643
Current portion of long-term debt		1,257,127
Long-term debt	1,241,786	503,379	1,752,118
Total liabilities at fair value	1,248,361	1,760,506	1,752,270
Recurring Fair Value Measurements | Level 2 | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	6,575		152
Recurring Fair Value Measurements | Level 2 | Other assets | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	3,936	12,597	4,802
Recurring Fair Value Measurements | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents	0	0	0
Restricted cash		0	0
Total assets at fair value	0	0	0
Current portion of long-term debt		0
Long-term debt	0	0	0
Total liabilities at fair value	0	0	0
Recurring Fair Value Measurements | Level 3 | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	0		0
Recurring Fair Value Measurements | Level 3 | Other assets | Interest rate swap agreements:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate swap agreement	0	0	0
Not Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of total debt	3,300,000	5,600,000	7,600,000
Carrying value of total debt	$ 3,100,000	$ 5,400,000	$ 7,100,000