Pension and Postretirement Benefits Net Periodic Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 02, 2017	Mar. 27, 2016	Apr. 02, 2017	Mar. 27, 2016
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 1,689	$ 883	$ 5,068	$ 2,649
Interest Cost on Projected Benefit Obligation	10,839	13,028	32,517	39,083
Expected Return on Plan Assets	(16,107)	(17,800)	(48,320)	(53,401)
Amortization of Prior Service Cost (Credit)	45	45	135	135
Amortization of Actuarial Loss	4,239	3,252	12,718	9,755
Net Periodic Expense (Income)	705	(592)	2,118	(1,779)
Other Postretirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	48	65	143	196
Interest Cost on Projected Benefit Obligation	596	811	1,787	2,432
Expected Return on Plan Assets	0	0	0	0
Amortization of Prior Service Cost (Credit)	(663)	(665)	(1,990)	(1,994)
Amortization of Actuarial Loss	699	1,011	2,097	3,033
Net Periodic Expense (Income)	$ 680	$ 1,222	$ 2,037	$ 3,667