Financial Information by Operating Segments (Details) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
		Jun. 29, 2019	Jun. 30, 2018		Jun. 29, 2019	Jun. 30, 2018
Segment Reporting Information
Revenues		$ 20,245	$ 15,229	[1]	$ 50,470	$ 45,128	[2]
Segment operating income		3,961	4,189		11,432	12,412
Media Networks
Segment Reporting Information
Revenues		6,713	5,534	[1]	18,317	16,597	[2]
Segment operating income		2,136	1,995		5,696	5,496
Parks, Experiences and Products
Segment Reporting Information
Revenues	[3]	6,575	6,136	[1]	19,570	18,566	[2]
Segment operating income	[3]	1,719	1,655		5,377	4,918
Studio Entertainment
Segment Reporting Information
Revenues	[3]	3,836	2,880	[1]	7,817	7,888	[2]
Segment operating income	[3]	792	701		1,607	2,400
Direct-to-Consumer & International
Segment Reporting Information
Revenues		3,858	827	[1]	5,921	2,589	[2]
Segment operating income		(553)	(168)		(1,074)	(398)
Eliminations
Segment Reporting Information
Revenues		(737)	(148)	[1]	(1,155)	(512)	[2]
Segment operating income		$ (133)	$ 6		$ (174)	$ (4)

[1] Amounts reflect our historical accounting prior to the adoption of the new revenue guidance.

[2] Amounts reflect our historical accounting prior to the adoption of the new revenue guidance.

[3] Studio Entertainment revenues and operating income include an allocation of Parks, Experiences and Products revenues, which is meant to reflect royalties on sales of merchandise based on film properties. The increase to Studio Entertainment revenues and operating income and corresponding decrease to Parks, Experiences and Products revenues and operating income was $126 million and $119 million for the quarters ended June 29, 2019 and June 30, 2018, respectively, and $406 million and $426 million for the nine months ended June 29, 2019 and June 30, 2018, respectively.