Net Income (Loss) Per Share (Schedule Of Net Income (Loss) Per Share) (Details) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Sep. 29, 2012		Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Oct. 01, 2011		Jul. 02, 2011	Apr. 02, 2011	Jan. 01, 2011		Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Net Income (Loss) Per Share [Abstract]
Net income (loss)	$ 22	[1]	$ 9	$ 2	$ (31)	[2]	$ (192)	[1]	$ (5)	$ (19)	$ (83)	[2]	$ 2	$ (299)	$ (113)
Weighted average shares of common stock outstanding--basic													83,435	84,121	84,525
Other common stock equivalents													3,209
Diluted													86,644	84,121	84,525
Weighted average shares of common stock outstanding--diluted													86,644	84,121	84,525
Basic net income (loss) per share from continuing operations													$ 0.02	$ (3.55)	$ (1.34)
Basic net income (loss) per share available to common shareholders													$ 0.02	$ (3.55)	$ (1.34)
Basic net income (loss) per share from continuing operations													$ 0.02	$ (3.55)	$ (1.34)
Diluted													$ 0.02	$ (3.55)	$ (1.34)
Basic net income (loss) per share available to common shareholders													$ 0.02	$ (3.55)	$ (1.34)

[1] Includes a goodwill impairment charge of $165 in fiscal 2011

[2] Includes a loss on extinguishment of debt of $68 in fiscal 2011