Compensation Expense Related to Stock Options, Stock Appreciation Rights and Restricted Stock Units (RSUs) (Parenthetical) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 28, 2013	Dec. 29, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Amortization of previously capitalized equity-based compensation	$ 13	$ 24