CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Mar. 31, 2012	Oct. 01, 2011
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, authorized	100,000,000	100,000,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	4,600,000,000	4,600,000,000
Common stock, issued	2,800,000,000	2,800,000,000
Treasury stock, shares	982,500,000	937,800,000