Goodwill and Intangible Assets - Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Sep. 29, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	$ 5,363,627	$ 5,363,927
Accumulated Amortization	1,270,511	1,062,677
Developed technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	3,816,465	3,784,689
Accumulated Amortization	938,655	788,274
In-process research and development [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	193,000	227,000
Accumulated Amortization
Customer relationships and contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	1,101,232	1,097,842
Accumulated Amortization	250,972	205,612
Trade names [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	238,077	240,092
Accumulated Amortization	72,027	60,318
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	11,940	11,417
Accumulated Amortization	8,109	7,906
Business licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	2,607	2,577
Accumulated Amortization	478	344
Non-competition agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Value	306	310
Accumulated Amortization	$ 270	$ 223