Consolidated Statements Of Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Shares At Cost	Stock Employee Compensation Trust (SECT)	Supplemental Retirement Plan (SERP) Trust	Accumulated Other Comprehensive (Loss) Income	Class A Common Stock Treasury Shares At Cost	Class B Common Stock Treasury Shares At Cost	Class B Common Stock Stock Employee Compensation Trust (SECT)	Class B Common Stock Supplemental Retirement Plan (SERP) Trust
TOTAL SHAREHOLDERS' EQUITY			$ 421,969	$ 1,169,216	$ (74,980)	$ (15,984)	$ 0	$ (246,711)
Beginning of year at Sep. 29, 2012			421,969	1,169,216	(74,980)	(15,984)	0	(246,711)
Issuance of treasury shares			7,134
Equity-based compensation expense			6,620
Adjustment to market - SECT, SERP and other			11,755
Net earnings	$ 120,497			120,497
Class A shares issued related to equity awards					3,591
Class A and B shares purchased					(11,614)
Issuance of shares						781
Purchase of shares	9,676					(9,676)
Purchase of shares	0						0
Adjustment to market						(10,666)	0
Other comprehensive income (loss)								112,553
End of year at Sep. 28, 2013	1,535,765	$ 51,280	447,478	1,289,713	(83,003)	(35,545)	0	(134,158)
TOTAL SHAREHOLDERS' EQUITY	1,535,765	51,280	421,969	1,169,216	(74,980)	(15,984)	0	(246,711)
Beginning of year at Sep. 29, 2012									(2,253,318)	(3,305,971)	(418,317)	0
Shares issued related to equity awards									495,297
Shares purchased									(246,241)	0
Shares issued											21,237
Purchase of shares											(213,143)
Purchase of shares												0
End of year at Sep. 28, 2013									(2,004,262)	(3,305,971)	(610,223)	0
TOTAL SHAREHOLDERS' EQUITY	1,535,765	51,280	447,478	1,289,713	(83,003)	(35,545)	0	(134,158)
Issuance of treasury shares			256
Equity-based compensation expense			7,189
Adjustment to market - SECT, SERP and other			9,042
Net earnings	158,198			158,198
Class A shares issued related to equity awards					1,991
Class A and B shares purchased					(279,433)
Issuance of shares						1,144
Purchase of shares	7,924					(7,924)
Purchase of shares	0						0
Adjustment to market						(6,133)	0
Other comprehensive income (loss)	(72,680)							(72,680)
End of year at Sep. 27, 2014	1,347,415	51,280	463,965	1,447,911	(360,445)	(48,458)	0	(206,838)
TOTAL SHAREHOLDERS' EQUITY	1,535,765	51,280	447,478	1,289,713	(83,003)	(35,545)	0	(134,158)
Beginning of year at Sep. 28, 2013									(2,004,262)	(3,305,971)	(610,223)	0
Shares issued related to equity awards									283,921
Shares purchased									(4,086,361)	(13,067)
Shares issued											18,444
Purchase of shares											(119,062)
Purchase of shares												0
End of year at Sep. 27, 2014									(5,806,702)	(3,319,038)	(710,841)	0
TOTAL SHAREHOLDERS' EQUITY	1,347,415	51,280	463,965	1,447,911	(360,445)	(48,458)	0	(206,838)
Issuance of treasury shares			(4,529)
Equity-based compensation expense			5,074
Adjustment to market - SECT, SERP and other			(7,998)
Net earnings	131,883			131,883
Class A shares issued related to equity awards					15,965
Class A and B shares purchased					(357,291)
Issuance of shares						7,395
Purchase of shares	15,151					(15,151)
Purchase of shares	7,328						(7,328)
Adjustment to market						12,003	1,991
Other comprehensive income (loss)	(134,897)							(134,897)
End of year at Oct. 03, 2015	994,532	51,280	456,512	1,579,794	(701,771)	(44,211)	(5,337)	(341,735)
TOTAL SHAREHOLDERS' EQUITY	1,347,415	51,280	463,965	1,447,911	(360,445)	(48,458)	0	(206,838)
Beginning of year at Sep. 27, 2014									(5,806,702)	(3,319,038)	(710,841)	0
Shares issued related to equity awards									543,923
Shares purchased									(5,055,652)	(4,888)
Shares issued											101,000
Purchase of shares											(218,540)
Purchase of shares												(100,000)
End of year at Oct. 03, 2015									(10,318,431)	(3,323,926)	(828,381)	(100,000)
TOTAL SHAREHOLDERS' EQUITY	$ 994,532	$ 51,280	$ 456,512	$ 1,579,794	$ (701,771)	$ (44,211)	$ (5,337)	$ (341,735)