Weighted Average Assumptions Used To Determine Benefit Obligations And Net Periodic Benefit Cost (Detail)
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12 Months Ended | |||||||||||
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Oct. 31, 2013
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Oct. 31, 2012
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Oct. 31, 2011
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Defined Benefit Plans
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Assumptions to measure net periodic benefit cost | ||||||||||||
Rate of compensation increase | 3.50% | [1],[2] | 3.50% | [1],[2] | 3.50% | [1],[2] | ||||||
Rate of return on plan assets | 6.00% | [1],[3] | 6.00% | [1],[3] | 8.00% | [1],[3] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Rate of compensation increase | 3.50% | [1],[2] | 3.50% | [1],[2] | 3.50% | [1],[2] | ||||||
Defined Benefit Plans | Minimum
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Assumptions to measure net periodic benefit cost | ||||||||||||
Discount rate | 2.84% | [1] | 4.12% | [1] | 4.50% | [1] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Discount rate | 3.58% | [2] | 2.84% | [2] | 4.12% | [2] | ||||||
Defined Benefit Plans | Maximum
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Assumptions to measure net periodic benefit cost | ||||||||||||
Discount rate | 3.50% | [1] | 4.51% | [1] | 4.98% | [1] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Discount rate | 4.28% | [2] | 3.50% | [2] | 4.51% | [2] | ||||||
Postretirement Benefit Plans
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Assumptions to measure net periodic benefit cost | ||||||||||||
Rate of compensation increase | 3.50% | [1],[2] | 3.50% | [1],[2] | 3.50% | [1],[2] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Rate of compensation increase | 3.50% | [1],[2] | 3.50% | [1],[2] | 3.50% | [1],[2] | ||||||
Postretirement Benefit Plans | Minimum
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Assumptions to measure net periodic benefit cost | ||||||||||||
Discount rate | 3.15% | [1] | 4.04% | [1] | 4.31% | [1] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Discount rate | 4.13% | [2] | 3.15% | [2] | 4.04% | [2] | ||||||
Postretirement Benefit Plans | Maximum
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Assumptions to measure net periodic benefit cost | ||||||||||||
Discount rate | 3.58% | [1] | 4.56% | [1] | 5.02% | [1] | ||||||
Assumptions used to determine benefit obligations | ||||||||||||
Discount rate | 4.43% | [2] | 3.58% | [2] | 4.56% | [2] | ||||||
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