Share-Based Compensation - Assumptions (Details)	12 Months Ended						0 Months Ended		12 Months Ended					0 Months Ended		12 Months Ended			0 Months Ended
	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)	Sep. 30, 2011 Installment Stock Purchase Opportunities (ISPOs)	Sep. 28, 2012 Minimum Performance-Based Options	Sep. 30, 2011 Minimum Performance-Based Options	Oct. 01, 2010 Minimum Performance-Based Options	Jun. 21, 2011 Minimum Performance-Based Options Under Modification	Dec. 09, 2009 Minimum Performance-Based Options Under Modification	Sep. 28, 2012 Maximum Performance-Based Options	Sep. 30, 2011 Maximum Performance-Based Options	Oct. 01, 2010 Maximum Performance-Based Options	Jun. 21, 2011 Maximum Performance-Based Options Under Modification	Dec. 09, 2009 Maximum Performance-Based Options Under Modification
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	30.00%	30.00%	30.00%	30.00%	30.00%	30.00%	30.00%	30.00%	30.00%	30.00%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
Expected life (in years)	6 years 3 months	6 years 3 months	6 years 3 months						2 years 6 months	2 years 6 months	5 years	5 years 6 months	5 years 6 months	3 years 6 months	3 years 7 months 6 days	6 years	7 years	7 years	6 years 9 months 18 days	6 years 9 months 18 days
Risk-free interest rate, minimum	1.04%	1.41%	2.04%	0.73%	1.43%	1.41%	0.69%	1.23%	0.24%	0.33%
Risk-free interest rate, maximum	1.61%	2.86%	3.31%	1.04%	2.86%	3.31%	2.27%	3.04%	0.31%	0.68%