Equity-Based Compensation - Impact of Stock Options/Rights and Restricted Stock Units on Income and Cash Flows (Detail) - USD ($) $ in Millions		12 Months Ended
		Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock option/rights compensation expense	[1]	$ 93	$ 102	$ 102
RSU compensation expense		293	309	312
Total equity-based compensation expense	[2]	386	411	414
Tax impact		(131)	(134)	(139)
Reduction in net income		255	277	275
Equity-based compensation expense capitalized during the period		78	57	49
Tax benefit reported in cash flow from financing activities		$ 208	$ 313	$ 255

[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.