Income Taxes (Reconciliation of the Statutory U.S. Federal Income Tax Rate With Our Effective Income Tax Rate) (Details)	12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Income Tax Disclosure [Abstract]
Statutory rate, Total	35.00%	35.00%	35.00%
Statutory rate, Related to litigation charge			35.00%
Statutory rate, All Other			35.00%
State income taxes, net of federal tax benefit, Total	2.80%	2.60%	15.80%
State income taxes, net of federal tax benefit, Related to litigation charge			3.50%
State income taxes, net of federal tax benefit, All Other			2.40%
Benefits and taxes related to foreign operations, Total	(2.10%)	(1.90%)	37.50%
Benefits and taxes related to foreign operations, Related to litigation charge			0.00%
Benefits and taxes related to foreign operations, All Other			(3.40%)
Domestic production activity deduction, Total	(2.20%)	(0.70%)	8.10%
Domestic production activity deduction, Related to litigation charge			(0.00%)
Domestic production activity deduction, All Other			(0.70%)
Domestic tax credits, Total	(0.20%)	(0.20%)	2.80%
Domestic tax credits, Related to litigation charge			(0.00%)
Domestic tax credits, All Other			(0.30%)
Charitable contributions, Total	(0.30%)	(0.40%)	3.90%
Charitable contributions, Related to litigation charge			0.00%
Charitable contributions, All Other			(0.30%)
Gain resulting from acquisition of joint venture, Total	(3.70%)	0.00%	0.00%
Gain resulting from acquisition of joint venture, Related to litigation charge			0.00%
Gain resulting from acquisition of joint venture, Other			0.00%
Other, net, Total	0.00%	0.20%	0.70%
Other, net, Related to litigation charge			0.00%
Other, net, All Other			(0.10%)
Effective tax rate, Total	29.30%	34.60%	103.80%
Effective tax rate, Related to litigation charge			38.50%
Effective tax rate, Other			32.60%