Financial Instruments (Tables)

3 Months Ended

Dec. 30, 2011

Financial Instruments

Assets and Liabilities Measured at Fair Value on a Recurring Basis

	As of December 30, 2011
($ in millions)	Level 1		Level 2		Total
Available-for-Sale Securities:
Corporate debt securities	$	—	$	39	$	39
U.S. Government debt securities		101		97		198
Total	$	101	$	136	$	237

	As of September 30, 2011
($ in millions)	Level 1		Level 2		Total
Available-for-Sale Securities:
Corporate debt securities	$	—	$	43	$	43
U.S. Government debt securities		101		103		204
Total	$	101	$	146	$	247