Business and Summary Of Significant Accounting Policies (Share Repurchases) (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	May 31, 2012	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010	May 11, 2011
Accounting Policies [Line Items]
Purchases of treasury shares		$ 264	$ 207	$ 48
Class A [Member]
Accounting Policies [Line Items]
Common shares repurchased during the period		14.3	11.7	3.2
Purchases of treasury shares		264	207	48
Share Repurchase Program [Member] | Class A [Member]
Accounting Policies [Line Items]
Remaining shares available to repurchase		35.2			22.5
Increase in authorized shares to repurchase	35
Common shares repurchased during the period		12.5	9.7	0
Purchases of treasury shares		230	170	0
Open Market Repurchases [Member] | Class A [Member]
Accounting Policies [Line Items]
Common shares repurchased during the period		1.8	2.0	3.2
Purchases of treasury shares		$ 34	$ 37	$ 48