Equity - Additional Information (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Sep. 28, 2013
Equity [Abstract]
Dividend, declaration date	Dec. 04, 2013
Dividend declared, per share	$ 0.86
Dividend declared	$ 1,500,000,000
Dividend, record date	Dec. 16, 2013
Dividend, payment date	Jan. 16, 2014
Dividend paid, per share		$ 0.75
Dividend paid	0	1,300,000,000
Common stock repurchases, shares	25
Common stock repurchases	1,718,000,000	1,044,000,000
Remaining shares authorized for repurchase	136
Available-for-sale Securities, Net Unrealized Gain Positions	$ 121,000,000		$ 156,000,000