Compensation Expense Related to Stock Options, Stock Appreciation Rights and Restricted Stock Units (RSUs) (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
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options/rights	$ 29	[1]	$ 29	[1]	$ 89	[1]	$ 104	[1]
RSUs	77		70		234		216
Total equity-based compensation expense	106	[2]	99	[2]	323	[2]	320	[2]
Equity-based compensation expense capitalized during the period	$ 15		$ 16		$ 42		$ 50

[1] Includes stock appreciation rights issued in connection with acquisition of Playdom

[2] Equity-based compensation expense is net of capitalized equity-based compensation and excludes amortization of previously capitalized equity-based compensation costs. During the quarter and nine months ended June 30, 2012, amortization of previously capitalized equity-based compensation totaled $15 million and $39 million, respectively. During the quarter and nine months ended July 2, 2011, amortization of previously capitalized equity-based compensation totaled $8 million and $43 million, respectively.