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Stock Based Compensation Plans (Stock option transactions) (Details) (USD $)
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12 Months Ended |
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Oct. 31, 2011
Y
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Oct. 31, 2010
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Oct. 31, 2009
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| Stock option transactions |
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|
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| Options outstanding, beginning of period |
28,712,000 |
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| Granted shares |
2,813,000 |
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| Exercised shares |
(3,341,000) |
|
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| Forfeited/expired shares |
(385,000) |
|
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| Options outstanding, end of period |
27,799,000 |
28,712,000 |
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| Options exercisable, end of period |
18,174,000 |
|
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| Vested or expected to vest |
27,414,000 |
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| Options outstanding weighted-average exercise price, beginning of period ($ per share) |
$ 25.16 |
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| Granted, weighted-average exercise price ($ per share) |
$ 29.41 |
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| Exercised weighted-average exercise price ($ per share) |
$ 16.68 |
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| Forfeited/expired weighted-average exercise price ($ per share) |
$ 32.74 |
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| Options outstanding weighted-average exercise price, end of period ($ per share) |
$ 26.50 |
$ 25.16 |
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| Options exercisable, weighted-average exercise price ($ per share) |
$ 24.23 |
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| Vested or expected to vest, weighted-average exercise price ($ per share) |
$ 26.44 |
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| Options outstanding weighted-average remaining contractual term (in years) |
4.9 |
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| Options exercisable weighted-average contractual term (in years) |
3.5 |
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| Vested or expected to vest, weighted-average remaining contractual term (in years) |
4.8 |
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| Options outstanding, aggregate intrinsic value |
$ 90,040,000 |
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| Options exercisable, aggregate intrinsic value |
81,014,000 |
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| Vested or expected to vest, aggregate intrinisic value |
89,679,000 |
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| Cash received from exercises of stock options under equity incentive plans |
53,500,000 |
49,500,000 |
21,500,000 |
| The total intrinsic value of options exercised during the period |
36,800,000 |
50,700,000 |
27,800,000 |
| Fair value of options that vested during the period |
31,400,000 |
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| Compensation cost related to unvested stock options granted under the Company's plan, not yet recognized |
$ 37,400,000 |
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| Weighted-average period over which compensation cost related to unvested options is expected to be recognized (in years) |
2.5 |
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| Stock options granted in November 2011 |
3,100,000 |
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| Grant date fair value of November 2011 stock option grants |
$ 25.06 |
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