Retirement Plans (Schedule of Weighted Average Allocation of Plan Assets) (Details) - U.S. Plans	Sep. 30, 2016	Sep. 25, 2015
Defined Benefit Plan Disclosure [Line Items]
Pension plans, weighted-average plan asset allocation	100.00%	100.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Pension plans, weighted-average plan asset allocation	0.00%	27.00%
Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Pension plans, weighted-average plan asset allocation	96.00%	70.00%
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Pension plans, weighted-average plan asset allocation	4.00%	3.00%
Other
Defined Benefit Plan Disclosure [Line Items]
Pension plans, weighted-average plan asset allocation	0.00%	0.00%