Retirement Plans (Reconciliation Of The Changes In Benefit Obligations, Plan Assets And Funded Status Of Retirement Plans) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Oct. 02, 2011
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Cost of VERP	$ 0	$ 6,167
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value at beginning of year	311,988
Fair value at end of year	336,425	311,988
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Actuarial gains (losses) arising during the period	(98,764)	78,619	36,862
Qualified Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Obligation at beginning of year	466,097	354,472
Service cost	10,210	9,068	9,982
Interest cost	19,964	19,891	18,557
Participant contributions	0	0
Actuarial loss	(85,578)	98,120
Benefits paid	(28,625)	(21,621)
Other	0	0
Cost of VERP	0	6,167	0
Obligation at end of year	382,068	466,097	354,472
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value at beginning of year	311,988	261,835
Actual return on plan assets	33,062	53,174
Participant contributions	0	0
Employer contributions	20,000	18,600
Benefits paid and other	(28,625)	(21,621)
Fair value at end of year	336,425	311,988	261,835
Funded status at end of year	(45,643)	(154,109)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	0	0
Noncurrent liabilities	(45,643)	(154,109)
Total liability recognized	(45,643)	(154,109)
Unamortized actuarial loss, net	68,454	180,044
Unamortized prior service cost	0	0
Total	68,454	180,044
Actuarial gains (losses) arising during the period	(95,925)	(65,278)
Amortization of actuarial loss	(15,665)	(11,871)	(8,518)
Amortization of prior service cost	0	0
Total recognized in OCI	(111,590)	53,407
Net periodic benefit cost and other losses	23,124	26,665	16,325
Total Recognized in Net Periodic Benefit Cost and Other Comprehensive Income	(88,466)	80,072
Net actuarial loss	3,574
Prior service cost	0
Total	3,574
Non-Qualified Pension Plan [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Obligation at beginning of year	63,156	55,604
Service cost	543	466	806
Interest cost	2,664	3,056	3,023
Participant contributions	0	0
Actuarial loss	1,773	6,767
Benefits paid	(3,419)	(3,404)
Other	0	667
Cost of VERP	0	0
Obligation at end of year	64,717	63,156	55,604
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value at beginning of year	0	0
Actual return on plan assets	0	0
Participant contributions	0	0
Employer contributions	3,419	3,404
Benefits paid and other	(3,419)	(3,404)
Fair value at end of year	0	0	0
Funded status at end of year	(64,717)	(63,156)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	(4,392)	(3,411)
Noncurrent liabilities	(60,325)	(59,745)
Total liability recognized	(64,717)	(63,156)
Unamortized actuarial loss, net	21,632	22,029
Unamortized prior service cost	1,349	1,618
Total	22,981	23,647
Actuarial gains (losses) arising during the period	(1,773)	(6,767)
Amortization of actuarial loss	(2,170)	(1,140)	(1,305)
Amortization of prior service cost	(269)	(432)
Total recognized in OCI	(666)	5,195
Net periodic benefit cost and other losses	5,646	5,094	5,622
Total Recognized in Net Periodic Benefit Cost and Other Comprehensive Income	4,980	10,289
Net actuarial loss	859
Prior service cost	269
Total	1,128
Postretirement Health Plans [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Obligation at beginning of year	37,307	29,578
Service cost	0	61	80
Interest cost	1,586	1,617	1,585
Participant contributions	131	134
Actuarial loss	(4,612)	6,574
Benefits paid	(1,331)	(1,512)
Other	162	855
Cost of VERP	0	0
Obligation at end of year	33,243	37,307	29,578
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value at beginning of year	0	0
Actual return on plan assets	0	0
Participant contributions	131	134
Employer contributions	1,038	523
Benefits paid and other	(1,169)	(657)
Fair value at end of year	0	0	0
Funded status at end of year	(33,243)	(37,307)
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract]
Current liabilities	(1,438)	(1,440)
Noncurrent liabilities	(31,805)	(35,867)
Total liability recognized	(33,243)	(37,307)
Unamortized actuarial loss, net	9,024	14,427
Unamortized prior service cost	0	0
Total	9,024	14,427
Actuarial gains (losses) arising during the period	(4,612)	(6,574)
Amortization of actuarial loss	(791)	(89)	(202)
Amortization of prior service cost	0	0
Total recognized in OCI	(5,403)	6,485
Net periodic benefit cost and other losses	2,377	1,767	1,898
Total Recognized in Net Periodic Benefit Cost and Other Comprehensive Income	(3,026)	8,252
Net actuarial loss	542
Prior service cost	0
Total	$ 542