Share-Based Compensation (Details) (USD $)	12 Months Ended									0 Months Ended		12 Months Ended
	Sep. 28, 2012	Sep. 30, 2011	Oct. 01, 2010	Sep. 28, 2012 Time-Based Options	Sep. 30, 2011 Time-Based Options	Oct. 01, 2010 Time-Based Options	Sep. 28, 2012 Performance-Based Options	Sep. 30, 2011 Performance-Based Options	Oct. 01, 2010 Performance-Based Options	Jun. 21, 2011 Performance-Based Options Under Modification	Dec. 09, 2009 Performance-Based Options Under Modification	Sep. 28, 2012 Installment Stock Purchase Opportunities (ISPOs) vesting_installment	Sep. 30, 2011 Installment Stock Purchase Opportunities (ISPOs)	Sep. 28, 2012 Seamless Unit Options	Sep. 30, 2011 Seamless Unit Options	Sep. 28, 2012 Deferred Stock Units	Sep. 30, 2011 Deferred Stock Units	Oct. 01, 2010 Deferred Stock Units	Sep. 28, 2012 Amended Stock Incentive Plan award	Sep. 28, 2012 Vesting Period, First Installment Installment Stock Purchase Opportunities (ISPOs)	Sep. 28, 2012 Selling and general corporate expenses	Sep. 30, 2011 Selling and general corporate expenses	Oct. 01, 2010 Selling and general corporate expenses	Sep. 28, 2012 Minimum Vesting Period, First Installment Installment Stock Purchase Opportunities (ISPOs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized	40,400,000
Number of shares available for grant	5,200,000
Share-based compensation expense, before taxes				$ 8,500,000	$ 10,300,000	$ 14,100,000	$ 3,600,000	$ 5,100,000	$ 6,700,000			$ 1,000,000	$ 800,000	$ 2,100,000	$ 100,000	$ 500,000	$ 1,000,000	$ 500,000			$ 15,700,000	$ 17,300,000	$ 21,300,000
Tax benefit on share-based compensation Expense	6,100,000	6,800,000	8,300,000
Proceeds from stock options exercised	6,700,000	1,000,000	100,000
Excess tax benefit from share-based compensation	4,500,000	700,000	(100,000)
Number of award types																			2
Award vesting period				4 years			4 years
Options granted weighted-Average grant date fair value (dollars per share)				$ 4.57	$ 4.42	$ 5.10	$ 3.91	$ 4.21	$ 4.98	$ 4.66	$ 5.19	$ 2.80	$ 2.47
Options forfeiture rate				8.70%			8.70%					8.70%
Unrecognized compensation expense				18,000,000								2,400,000
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized, period for recognition				2 years 7 months 27 days								3 years 8 months 12 days
Options exercised total intrinsic value				15,000,000	8,900,000	1,800,000	7,500,000	5,000,000	1,500,000			200,000
Options vested fair value				7,900,000	15,800,000	11,000,000	6,700,000	0	5,500,000			900,000
Period in fiscal year EBIT targets set										90 days
Percent with vesting subject to EBIT targets											35.00%
Number of vesting installments												5
Award vesting percentage																				20.00%
Minimum Percentage To Be Exercised To Not Cancel Award																								25.00%
Period Awards Are Exercisable After Vesting												31 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (shares)				2,699,000			2,699,000					920,000		3,500,000	6,000,000	34,480
Exercised (shares)				(2,195,000)			(1,045,000)					(216,000)
Forfeited and expired (shares)				(775,000)			(1,776,000)					(278,000)
Outstanding at September 28, 2012 (shares)				15,711,000	15,982,000		15,929,000	16,051,000				1,403,000	977,000
Exercisable at September 28, 2012 (shares)				10,025,000			5,391,000					63,000
Expected to vest at September 28, 2012 (shares)				5,093,000			0					1,207,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at September 30, 2011 (per share)				$ 8.73			$ 8.73					$ 12.69
Granted (per share)				$ 14.17			$ 14.17					$ 14.67
Exercised (per share)				$ 7.52			$ 7.25					$ 13.86
Forfeited and expired (per share)				$ 11.45			$ 9.41					$ 12.69
Outstanding at September 28, 2012 (per share)				$ 9.70	$ 8.73		$ 9.68	$ 8.73				$ 13.81	$ 12.69
Exercisable at September 28, 2012 (per share)				$ 7.98			$ 8.12					$ 14.46
Expected to vest at September 28, 2012 (per share)				$ 12.63			$ 0.00					$ 13.65
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Outstanding intrinsic value at September 28, 2012				85,945,000			87,487,000					1,911,000
Exercisable intrinsic value at September 28, 2012				72,062,000			38,019,000					45,000
Expected to vest intrinsic value at September 28, 2012				$ 12,948,000			$ 0					$ 1,838,000
Outstanding at September 28, 2012, Weighted-Average Remaining Term				6 years 6 months			6 years 4 months 24 days					3 years 8 months 12 days
Exercisable at September 28, 2012, Weighted-Average Remaining Term				5 years 2 months 12 days			5 years 3 months 18 days					6 months
Expected to vest at September 28, 2012, Weighted-Average Remaining Term				8 years 7 months 5 days			0 years					9 years 2 months 11 days
Share-based compensation, contractual term																			10 years
Option Awards Modified in Period										3,700,000	1,100,000