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Stock Based Compensation Plans (Stock option transactions) (Details) (USD $)
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12 Months Ended |
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Oct. 31, 2012
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Oct. 31, 2011
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Oct. 31, 2010
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| Stock option transactions |
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| Options outstanding, beginning of period |
27,799,000 |
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| Granted shares |
3,110,000 |
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| Exercised shares |
(3,208,000) |
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| Forfeited/expired shares |
(657,000) |
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| Options outstanding, end of period |
27,044,000 |
27,799,000 |
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| Options exercisable, end of period |
17,676,000 |
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| Vested or expected to vest |
26,669,000 |
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| Options outstanding weighted-average exercise price, beginning of period ($ per share) |
$ 26.50 |
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| Granted, weighted-average exercise price ($ per share) |
$ 25.07 |
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| Exercised weighted-average exercise price ($ per share) |
$ 15.75 |
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| Forfeited/expired weighted-average exercise price ($ per share) |
$ 31.01 |
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| Options outstanding weighted-average exercise price, end of period ($ per share) |
$ 27.50 |
$ 26.50 |
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| Options exercisable, weighted-average exercise price ($ per share) |
$ 27.04 |
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| Vested or expected to vest, weighted-average exercise price ($ per share) |
$ 27.49 |
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| Options outstanding weighted-average remaining contractual term (in years) |
4 years 10 months |
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| Options exercisable weighted-average contractual term (in years) |
3 years 5 months |
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| Vested or expected to vest, weighted-average remaining contractual term (in years) |
4 years 10 months |
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| Options outstanding, aggregate intrinsic value |
$ 87,714,000 |
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| Options exercisable, aggregate intrinsic value |
69,528,000 |
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| Vested or expected to vest, aggregate intrinisic value |
86,987,000 |
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| Fair value of options vested in the period |
30,000,000 |
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| Cash received from exercises of stock options under equity incentive plans |
50,000,000 |
53,500,000 |
49,500,000 |
| The total intrinsic value of options exercised during the period |
39,500,000 |
36,800,000 |
50,700,000 |
| Compensation cost related to unvested stock options granted under the Company's plan, not yet recognized |
$ 28,200,000 |
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| Weighted-average period over which compensation cost related to unvested options is expected to be recognized (in years) |
2 years 8 months |
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| Stock options granted in November 2012 |
2,200,000 |
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| Grant date fair value of November 2012 stock option grants |
$ 28.92 |
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