Pension and Postretirement Benefits Net Periodic Income and Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 30, 2018	Dec. 31, 2017	Dec. 30, 2018	Dec. 31, 2017
Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 1,138	$ (300)	$ 2,270	$ 1,201
Interest Cost on Projected Benefit Obligation	9,923	10,760	19,860	21,534
Expected Return on Plan Assets	(13,574)	(15,482)	(27,164)	(30,956)
Amortization of Prior Service Cost (Credit)	45	45	90	90
Amortization of Actuarial Loss	2,893	3,871	5,819	7,666
Net Periodic Expense (Income)	425	(1,106)	875	(465)
Other Postretirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	19	25	53	67
Interest Cost on Projected Benefit Obligation	586	591	1,166	1,186
Expected Return on Plan Assets	0	0	0	0
Amortization of Prior Service Cost (Credit)	(182)	(359)	(365)	(717)
Amortization of Actuarial Loss	778	856	1,580	1,726
Net Periodic Expense (Income)	$ 1,201	$ 1,113	$ 2,434	$ 2,262