Segment Information Equity in the Income of Investees included in Segment Operating Results (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
Schedule of Equity Method Investments [Line Items]
Equity in the income of investees	$ 217	$ 185	$ 456	$ 295
Media Networks
Schedule of Equity Method Investments [Line Items]
Equity in the income of investees	217	185	456	349
Media Networks | Cable [Member]
Schedule of Equity Method Investments [Line Items]
Equity in the income of investees	223	195	480	372
Media Networks | Broadcasting [Member]
Schedule of Equity Method Investments [Line Items]
Equity in the income of investees	$ (6)	$ (10)	$ (24)	$ (23)