Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013	Sep. 28, 2013
Income Tax Disclosure [Abstract]
Effective tax rate for continuing operations	38.30%	23.90%	36.20%	30.40%
Unrecognized tax benefits	$ 169		$ 169		$ 175
Unrecognized tax benefits that would impact effective tax rate	144		144		149
Unrecognized tax benefits, income tax penalties and interest accrued	72		72		63
Unrecognized tax benefits, reductions that could result from tax audit resolutions	$ 42		$ 42