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		6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013	Mar. 29, 2014	Mar. 30, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Amortization of previously capitalized equity-based compensation	$ 14	$ 13	$ 27	$ 37