Disaggregation of Revenue by Major Source (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 29, 2018	Dec. 30, 2017
Disaggregation of Revenue [Line Items]
Revenues		$ 15,303	$ 15,351
Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		3,398	3,205
Advertising
Disaggregation of Revenue [Line Items]
Revenues		2,442	2,376
Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		1,933	1,832
Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		1,531	1,463
Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues		2,122	2,059
TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		1,177	997
Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		373	1,169
Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		910	965
Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		453	391
Other
Disaggregation of Revenue [Line Items]
Revenues		964	894
Media Networks
Disaggregation of Revenue [Line Items]
Revenues		5,921	5,555
Media Networks | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		3,075	2,867
Media Networks | Advertising
Disaggregation of Revenue [Line Items]
Revenues		2,023	1,963
Media Networks | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		0	0
Media Networks | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		0	0
Media Networks | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		722	624
Media Networks | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Media Networks | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Media Networks | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		0	0
Media Networks | Other
Disaggregation of Revenue [Line Items]
Revenues		101	101
Parks Experiences & Consumer Products
Disaggregation of Revenue [Line Items]
Revenues	[1]	6,824	6,527
Parks Experiences & Consumer Products | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		0	0
Parks Experiences & Consumer Products | Advertising
Disaggregation of Revenue [Line Items]
Revenues		2	2
Parks Experiences & Consumer Products | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		1,933	1,832
Parks Experiences & Consumer Products | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		1,531	1,463
Parks Experiences & Consumer Products | Retail and wholesale sales of merchandise, food and beverage
Disaggregation of Revenue [Line Items]
Revenues		2,122	2,059
Parks Experiences & Consumer Products | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Parks Experiences & Consumer Products | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Parks Experiences & Consumer Products | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		741	776
Parks Experiences & Consumer Products | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		0	0
Parks Experiences & Consumer Products | Other
Disaggregation of Revenue [Line Items]
Revenues		495	395
Studio Entertainment
Disaggregation of Revenue [Line Items]
Revenues	[1]	1,824	2,509
Studio Entertainment | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		0	0
Studio Entertainment | Advertising
Disaggregation of Revenue [Line Items]
Revenues		0	0
Studio Entertainment | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		0	0
Studio Entertainment | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		0	0
Studio Entertainment | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		605	519
Studio Entertainment | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		373	1,169
Studio Entertainment | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		154	171
Studio Entertainment | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		425	361
Studio Entertainment | Other
Disaggregation of Revenue [Line Items]
Revenues		267	289
Direct-to-Consumer & International
Disaggregation of Revenue [Line Items]
Revenues		918	931
Direct-to-Consumer & International | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		323	338
Direct-to-Consumer & International | Advertising
Disaggregation of Revenue [Line Items]
Revenues		417	411
Direct-to-Consumer & International | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		0	0
Direct-to-Consumer & International | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		0	0
Direct-to-Consumer & International | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		34	25
Direct-to-Consumer & International | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Direct-to-Consumer & International | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		15	18
Direct-to-Consumer & International | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		28	30
Direct-to-Consumer & International | Other
Disaggregation of Revenue [Line Items]
Revenues		101	109
Eliminations
Disaggregation of Revenue [Line Items]
Revenues	[2]	(184)	(171)
Eliminations | Affiliate fees
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | Advertising
Disaggregation of Revenue [Line Items]
Revenues			0
Eliminations | Theme park admissions
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | Resort and vacations
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | TV/SVOD distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		(184)	(171)
Eliminations | Theatrical distribution licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | Merchandise licensing
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | Home entertainment
Disaggregation of Revenue [Line Items]
Revenues		0	0
Eliminations | Other
Disaggregation of Revenue [Line Items]
Revenues		$ 0	$ 0

[1] Studio Entertainment revenues and operating income include an allocation of Parks, Experiences & Consumer 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 & Consumer Products revenues and operating income was $154 million and $171 million for the quarters ended December 29, 2018 and December 30, 2017, respectively.

[2] Intersegment content transactions are as follows:   Quarter Ended (in millions) December 29,
2018   December 30,
2017 Revenues       Studio Entertainment:       Content transactions with Media Networks $ (21 )   $ (31 ) Content transactions with Direct-to-Consumer & International (18 )   (8 ) Media Networks:       Content transactions with Direct-to-Consumer & International (145 )   (132 ) Total revenues $ (184 )   $ (171 )