Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Statements of Income and Comprehensive Income [Abstract]
Net income	$ 146,050	$ 131,892	$ 286,206	$ 329,315
Change in net unrealized gains and losses on available-for-sale securities, net of tax benefit (expense) of $(3), $(201), $(17) and $(228), respectively	0	885	118	1,977
Change in net unrealized gains and losses on cash flow hedges, net of tax benefit (expense) of $(117), $(96), $48 and $(310), respectively	610	423	(249)	1,518
Change in net unrealized gains and losses on post-retirement benefits, net of tax benefit (expense) of $(20), $(18), $(42) and $(37), respectively	98	76	196	154
Other comprehensive income (loss), net	708	1,384	65	3,649
Total comprehensive income	146,758	133,276	286,271	332,964
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax	(3)	(201)	(17)	(228)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(117)	(96)	48	(310)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	$ (20)	$ (18)	$ (42)	$ (37)