v2.4.0.8
Reconciliation of the Provision for Income Taxes (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Income Taxes [Line Items]      
Computed expected tax $ 18,719 $ 17,554 $ 19,517
State taxes, net of federal effect 469 508 677
Indefinitely invested earnings of foreign subsidiaries (4,744) (4,614) (5,895)
Research and development credit, net (88) (287) (103)
Domestic production activities deduction (495) (308) (328)
Other 112 265 162
Provision for income taxes $ 13,973 $ 13,118 $ 14,030
Effective tax rate 26.10% 26.20% 25.20%