Income (Loss) Per Share Information (Details)	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Earnings Per Share [Abstract]
Basic weighted-average shares	169,064,000	166,311,000
Common stock equivalents	2,839,000
Diluted weighted-average shares	171,903,000	166,311,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		796,000
Weighted-Average Number of Anti-Dilutive Options	980,000	6,727,000
Shares Issued under Stock Incentive and Employee Stock Purchase Plans	523,000	942,000
Incremental Common Shares Attributable to Conversion of Debt Securities	5,900,000
Senior Notes Due Two Thousand Thirty-Two [Member] [Member]
Earnings Per Share [Abstract]
Debt Instrument, Interest Rate, Stated Percentage	0.50%