Description of the Business and Segment Information - Financial Information by Operating Segments (Parenthetical) (Detail) - USD ($) $ in Millions	Oct. 03, 2015	Sep. 27, 2014
Segment Reporting Information [Line Items]
Equity method investments	$ 2,483	$ 2,476
Goodwill and intangible assets	34,998	35,315
Media Networks
Segment Reporting Information [Line Items]
Equity method investments	2,454	2,321
Goodwill and intangible assets	18,186	18,270
Parks and Resorts
Segment Reporting Information [Line Items]
Equity method investments	9	28
Goodwill and intangible assets	376	379
Studio Entertainment
Segment Reporting Information [Line Items]
Equity method investments	2	2
Goodwill and intangible assets	8,538	8,679
Consumer Products
Segment Reporting Information [Line Items]
Equity method investments	1	1
Goodwill and intangible assets	6,118	6,187
Interactive
Segment Reporting Information [Line Items]
Equity method investments	0	0
Goodwill and intangible assets	1,650	1,670
Corporate
Segment Reporting Information [Line Items]
Equity method investments	17	124
Goodwill and intangible assets	$ 130	$ 130