Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Sep. 29, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 5,361,952	$ 5,363,927
Accumulated Amortization	1,166,414	1,062,677
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,790,865	3,784,689
Accumulated Amortization	863,337	788,274
In-process research and development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	220,000	227,000
Accumulated Amortization
Customer relationships and contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,098,231	1,097,842
Accumulated Amortization	228,268	205,612
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	238,101	240,092
Accumulated Amortization	66,161	60,318
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	11,852	11,417
Accumulated Amortization	7,992	7,906
Business licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	2,597	2,577
Accumulated Amortization	411	344
Non-competition agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	306	310
Accumulated Amortization	$ 245	$ 223