Equity-Based Compensation - Impact of Stock Options/Rights and Restricted Stock Units on Income and Cash Flows (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 28, 2013		Sep. 29, 2012		Oct. 01, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock option/rights compensation expense	$ 101	[1]	$ 115	[1]	$ 133	[1]
RSU compensation expense	311		310		300
Total equity-based compensation expense	412	[2]	425	[2]	433	[2]
Tax impact	(139)		(145)		(151)
Reduction in net income	273		280		282
Equity-based compensation expense capitalized during the period	58		56		66
Tax benefit reported in cash flow from financing activities	$ 204		$ 122		$ 124

[1] Includes stock appreciation rights.

[2] Equity-based compensation expense is net of capitalized equity-based compensation and excludes amortization of previously capitalized equity-based compensation costs. Amortization of previously capitalized equity-based compensation totaled $65 million, $59 million and $57 million in fiscal years 2013, 2012 and 2011, respectively.