Income Taxes (Details 4) (USD $)	12 Months Ended
	Sep. 26, 2014	Sep. 27, 2013	Sep. 28, 2012	Sep. 24, 2010
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 1,000,000	$ 1,000,000	$ 2,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	247,000,000	235,000,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	36,000,000	39,000,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	0
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	20,000,000
Unrecognized Tax Benefits [Roll Forward]
Balance as of beginning of year	256,000,000	120,000,000		144,000,000
Additions based on tax positions related to the current year	46,000,000	137,000,000	18,000,000
Additions based on tax positions related to prior years	7,000,000	7,000,000	7,000,000
Reductions based on tax positions related to prior years	39,000,000	6,000,000	38,000,000
Reductions related to settlements	1,000,000	0	1,000,000
Reductions related to lapse of the applicable statute of limitations	2,000,000	2,000,000	3,000,000
Foreign currency translation adjustments	0	0	(7,000,000)
Balance as of end of year	$ 267,000,000	$ 256,000,000	$ 120,000,000	$ 144,000,000