Financial Information by Operating Segments (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2012	Jul. 02, 2011	Jun. 30, 2012	Jul. 02, 2011
Studio Entertainment
Segment Reporting Information [Line Items]
Increases/(decreases) allocations on segment revenues and operating income	$ 64	$ 77	$ 194	$ 195
Consumer Products
Segment Reporting Information [Line Items]
Increases/(decreases) allocations on segment revenues and operating income	(53)	(76)	(182)	(192)
Interactive
Segment Reporting Information [Line Items]
Increases/(decreases) allocations on segment revenues and operating income	$ (11)	$ (1)	$ (12)	$ (3)