Investments Combined Financial Information for Equity Investments (Detail) - USD ($) $ in Millions	12 Months Ended
	Oct. 01, 2016	Oct. 03, 2015	Sep. 27, 2014
Results of Operations:
Revenues	$ 7,416	$ 6,561	$ 6,573
Net Income	1,855	1,912	2,003
Balance Sheet
Current assets	4,801	3,676	2,640
Non-current assets	8,906	6,429	6,294
Equity Method Investment, Summarized Financial Information, Assets, Total	13,707	10,105	8,934
Current liabilities	2,018	1,614	1,504
Non-current liabilities	4,531	4,128	3,298
Shareholders' equity	7,158	4,363	4,132
Equity Method Investment, Summarized Financial Information, Liabilities and Equity, Total	$ 13,707	$ 10,105	$ 8,934