Employee Benefit Plans (Stock Options And Restricted Stock Units Under All Equity Plans (Except 2005 Director's Plan)) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2011 years		Oct. 31, 2010 years		Oct. 31, 2009 years		Oct. 31, 2008 years
Available for Grant, Beginning Balance	2,606,000	[1]	6,703,000	[1]	4,347,000	[1]
Available for Grant, Options Granted	(2,228,000)	[1]	(1,995,000)	[1]	(1,395,000)	[1]
Available for Grant, Options Canceled/forfeited/expired	550,000	[1]	372,000	[1]	2,113,000	[1]
Available for Grant, Restricted stock units granted	(2,182,000)	[1],[2]	(2,677,000)	[1],[2]	(2,476,000)	[1],[2]
Available for Grant, Restricted stock units forfeited	165,000	[1],[2]	203,000	[1],[2]	114,000	[1],[2]
Available for Grant, Additional shares reserved	7,000,000	[1]			4,000,000	[1]
Available for Grant, Ending Balance	5,911,000	[1]	2,606,000	[1]	6,703,000	[1]
Options Outstanding, Options Granted	2,270,000		1,995,000		1,395,000
Options Outstanding, Options Assumed			456,000	[3]
Options Outstanding, Options Exercised	(6,800,000)		(6,465,000)		(2,112,000)
Options Outstanding, Options Canceled/forfeited/expired	(694,000)		(620,000)		(2,242,000)
Options Outstanding, Vested and expected to vest	15,762,000
Options Outstanding, Exercisable	12,051,000
Weighted- Average Exercise Price per Share, Beginning Balance	$ 21.83		$ 21.22		$ 21.52
Weighted- Average Exercise Price per Share, Options Granted	$ 26.07		$ 21.30		$ 18.16
Weighted- Average Exercise Price per Share, Options Assumed			$ 18.10	[3]
Weighted- Average Exercise Price per Share, Options Exercised	$ 20.53		$ 18.16		$ 18.07
Weighted- Average Exercise Price per Share, Options Canceled/forfeited/expired	$ 27.24		$ 23.19		$ 26.06
Weighted- Average Exercise Price per Share, Ending Balance	$ 22.76		$ 21.83		$ 21.22
Weighted- Average Exercise Price per Share, Vested and expected to vest	$ 22.73
Weighted- Average Exercise Price per Share, Exercisable	$ 22.59
Weighted-Average Remaining Contractual Life (In Years)	2.97		2.80		2.89		3.43
Weighted-Average Remaining Contractual Life (In Years), Vested and expected to vest	2.93
Weighted-Average Remaining Contractual Life (In Years), Exercisable	2.06
Aggregate Intrinsic Value	$ 74,068		$ 90,013		$ 58,267		$ 15,403
Aggregate Intrinsic Value, Vested and expected to vest	73,554
Aggregate Intrinsic Value, Exercisable	$ 58,779
Company's End of period closing stock price	$ 27.19
All Stock Plans [Member]
Options Outstanding, Beginning Balance							28,777,000
Options Outstanding, Ending Balance	15,960,000		21,184,000		25,818,000		28,777,000

[1] Excluding shares reserved for future issuance under the 2005 Directors Plan.

[2] These amounts do not reflect the actual number of restricted stock units granted or forfeited but rather the effect on the total remaining shares available for future grants after the application of the share reserve ratio. For more information about the share reserve ratio, please see Restricted Stock Units above.

[3] The Company assumed options and stock appreciation rights (SARs) outstanding under various plans through acquisitions.