Income Taxes (Deferred Tax Assets And Deferred Tax Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Oct. 02, 2011
Income Tax Disclosure [Abstract]
Accrued pension and postretirement benefits	$ 109,443	$ 82,706
Accrued insurance	12,096	14,263
Accrued vacation pay expense	4,611	6,605
Deferred income	1,969	2,268
Other reserves and allowances	32,504	29,127
Tax loss and tax credit carryforwards	5,093	4,025
Leasing transactions	10,893	9,348
Share-based compensation	18,722	18,853
Other, net	3,297	4,620
Total gross deferred tax assets	198,628	171,815
Valuation allowance	(5,093)	(4,025)
Total net deferred tax assets	193,535	167,790
Property and equipment, principally due to differences in depreciation	(27,230)	(32,677)
Intangible assets	(23,837)	(24,021)
Total gross deferred tax liabilities	(51,067)	(56,698)
Net deferred tax assets	$ 142,468	$ 111,092