Description of the Business and Segment Information - Financial Information by Operating Segments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 27, 2014	Sep. 28, 2013
Segment Reporting Information [Line Items]
Equity method investments	$ 2,476	$ 2,407
Goodwill and intangible assets	35,315	34,694
Media Networks
Segment Reporting Information [Line Items]
Equity method investments	2,321	2,369
Goodwill and intangible assets	18,270	17,782
Parks and Resorts
Segment Reporting Information [Line Items]
Equity method investments	28	15
Goodwill and intangible assets	379	342
Studio Entertainment
Segment Reporting Information [Line Items]
Equity method investments	2	2
Goodwill and intangible assets	8,679	8,425
Consumer Products
Segment Reporting Information [Line Items]
Equity method investments	1	1
Goodwill and intangible assets	6,187	6,262
Interactive
Segment Reporting Information [Line Items]
Equity method investments	0	0
Goodwill and intangible assets	1,670	1,753
Corporate
Segment Reporting Information [Line Items]
Equity method investments	124	20
Goodwill and intangible assets	$ 130	$ 130