Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 25, 2017	Mar. 31, 2018	Mar. 25, 2017
Statements of Income and Comprehensive Income [Abstract]
Net income	$ 193,627	$ 140,213	$ 273,146	$ 408,304
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	(1,213)	349	(3,433)	(1,408)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(217)	1,648	133	927
Unrealized gains (losses) on post-retirement benefits, net of tax benefit (expense)	18	59	(14)	4,965
Other Comprehensive Income (Loss), Net of Tax	(1,412)	2,056	(3,314)	4,484
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	192,215	142,269	269,832	412,788
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax	274	0	274	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	6	(590)	(45)	(273)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	$ (4)	$ (28)	$ (168)	$ (2,861)