Significant Accounting Policies (Pass-Through Costs Included In Revenues) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 02, 2015	Sep. 26, 2014	Sep. 27, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Pass-through costs included in revenues	$ 2,602.6	$ 2,954.9	$ 2,624.8