XML 25 R78.htm IDEA: XBRL DOCUMENT v2.3.0.15
Reconciliation of Beginning and Ending Gross Unrecognized Tax Benefits, Excluding Related Accrual for Interest (Detail) (USD $)
In Millions
12 Months Ended
Oct. 01, 2011
Oct. 02, 2010
Oct. 03, 2009
Reconciliation of Unrecognized Tax Benefits [Line Items]   
Balance at the beginning of the year$ 680$ 686$ 655
Increases for current year tax positions755863
Increases for prior year tax positions4114117
Decreases in prior year tax positions(17)(192)(7)
Settlements with taxing authorities(61)(13)(42)
Balance at the end of the year$ 718$ 680$ 686