Retirement Plans (Components Of Net Periodic Benefit Cost) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Oct. 02, 2011
Defined Benefit Plan Disclosure [Line Items]
Cost of VERP	$ 0	$ 6,167
Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	10,210	9,068	9,982
Interest cost	19,964	19,891	18,557
Expected return on plan assets	(22,715)	(20,332)	(20,732)
Actuarial loss	15,665	11,871	8,518
Cost of VERP	0	6,167	0
Net periodic benefit cost	23,124	26,665	16,325
Non-Qualified Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	543	466	806
Interest cost	2,664	3,056	3,023
Actuarial loss	2,170	1,140	1,305
Amortization of unrecognized prior service cost	269	432	488
Cost of VERP	0	0
Net periodic benefit cost	5,646	5,094	5,622
Postretirement Health Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	61	80
Interest cost	1,586	1,617	1,585
Actuarial loss	791	89	202
Amortization of unrecognized prior service cost	0	0	31
Cost of VERP	0	0
Net periodic benefit cost	$ 2,377	$ 1,767	$ 1,898