Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Statements of Income and Comprehensive Income [Abstract]
Net income	$ 130,613	$ 193,627	$ 459,928	$ 273,146
Change in net unrealized gains and losses on available-for-sale securities, net of tax benefit (expense) of $97, $274, ($131), and $274, respectively	1,139	(1,213)	3,116	(3,433)
Change in net unrealized gains and losses on cash flow hedges, net of tax benefit (expense) of $69, $6, $(241), and $(45), respectively	(351)	(217)	1,167	133
Change in net unrealized gains and losses on post-retirement benefits, net of tax benefit (expense) of $(23), $(4), $(60), and $(168), respectively	78	18	232	(14)
Other comprehensive income (loss), net	866	(1,412)	4,515	(3,314)
Total comprehensive income	131,479	192,215	464,443	269,832
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	97	274	(131)	274
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	69	6	(241)	(45)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	$ (23)	$ (4)	$ (60)	$ (168)