Risks and Uncertainties (Narrative) (Details) - COVID-19 Pandemic $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Jun. 27, 2020 $ / shares	Jun. 27, 2020 USD ($)
Concentration Risk [Line Items]
Dividends, per share, suspended (in dollars per share) | $ / shares	$ 0.30
Annualized suspended dividend payments | $		$ 23
Director
Concentration Risk [Line Items]
Temporary salary decrease, percentage	20.00%	20.00%
Minimum | Executive Officer
Concentration Risk [Line Items]
Temporary salary decrease, percentage	10.00%	10.00%
Maximum | Executive Officer
Concentration Risk [Line Items]
Temporary salary decrease, percentage	15.00%	15.00%