Financial Information by Operating Segments- Intersegment Eliminations (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 28, 2019	Dec. 29, 2018
Segment Reporting Information
Revenues		$ 20,858	$ 15,303
Studio Entertainment
Segment Reporting Information
Revenues	[1]	3,764	1,824
Parks, Experiences and Products
Segment Reporting Information
Revenues	[1]	7,396	6,824
Intersegment Eliminations
Segment Reporting Information
Revenues		(599)
Intersegment Eliminations | Studio Entertainment
Segment Reporting Information
Revenues		184	154
Intersegment Eliminations | Parks, Experiences and Products
Segment Reporting Information
Revenues		$ (184)	$ (154)

[1] The allocation of Parks, Experiences and Products revenues to Studio Entertainment was $184 million and $154 million for the quarters ended December 28, 2019 and December 29, 2018, respectively.