Other Financial Information (Miscellaneous Noncurrent Assets) (Details) (USD $) In Thousands	Sep. 30, 2011		Oct. 01, 2010
Other Financial Information
Deferred income taxes	$ 161,540		$ 187,045
Cash surrender value of life insurance policies	75,440		68,107
Intangible assets	259,006	[1]	100,045	[1]
Investments	185,590		209,898
Notes receivable	6,942		4,794
Reimbursable pension costs	140,878	[2]
Other	32,338		13,065
Total	$ 861,734		$ 582,954

[1] Consists primarily of intangible assets acquired in connection with various business combinations.

[2] Consists of costs incurred relating to a defined benefit pension plan covering employees providing services on a contract with, and for the benefit of, the U.S. federal government pursuant to which such costs are fully reimbursable.