Pension and Postretirement Benefits Pension and Postretirement Benefits (Narrative) (Details) $ in Thousands	6 Months Ended
	Dec. 29, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	$ 0
Cash Contributions to Qualified Pension Plans	0
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	6,300
Payment for Other Postretirement Benefits	4,300
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Estimated Future Employer Contributions in Current Fiscal Year	3,500
Defined Benefit Plan, Benefits Paid	$ 1,800