Equity in the Income of Investees included in Segment Operating Results (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Schedule of Equity Method Investments
Equity in the income of investees	$ 73	$ 124	$ 122	$ 327
Media Networks
Schedule of Equity Method Investments
Equity in the income of investees	78	127	141	334
Parks and Resorts
Schedule of Equity Method Investments
Equity in the income of investees	(5)	(3)	(19)	(8)
Consumer Products and Interactive
Schedule of Equity Method Investments
Equity in the income of investees	0	0	0	1
Total Segments
Schedule of Equity Method Investments
Equity in the income of investees	$ 73	$ 124	$ 122	$ 327