Equity-Based Compensation - Additional Information (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average grant date fair values of options issued	$ 12.37	$ 10.58
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 201
Stock compensation granted, number of shares	8.6
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost	$ 696
Stock compensation granted, number of shares	6.9
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation granted, number of shares	0.4