Investments in and advances to non-consolidated affiliates (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended	11 Months Ended	12 Months Ended
Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010	Sep. 29, 2011 NC2 Global LLC [Member]	Oct. 31, 2010 NC2 Global LLC [Member]
Schedule of Equity Method Investments [Line Items]
Sales to affiliates	$ 25	$ 107	$ 121
Equity Method Investment Summarized Financial Information Undistributed Earnings	(68)	(32)
Due from Affiliates	32	30
Equity Method Investment, Summarized Financial Information, Current Assets	271	214
Investments in and Advances to Affiliates, at Fair Value, Gross Additions	39	65
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]
Net revenue	704	938	659	235	63
Net expenses				318	135
Loss before tax expense				(83)	(72)
Net loss	(22)	(131)	(96)	(83)	(72)
Equity Method Investment, Summarized Financial Information, Cost of Sales, Expenses and Income Tax Expense	726	1,069	755
Equity Method Investment, Summarized Financial Information, Noncurrent Assets	199	238
Equity Method Investment, Summarized Financial Information, Assets	470	452
Equity Method Investment, Summarized Financial Information, Current Liabilities	195	118
Equity Method Investment, Summarized Financial Information, Noncurrent Liabilities	91	117
Equity Method Investment, Summarized Financial Information, Liabilities	286	235
Equity Method Investment, Summarized Financial Information, Equity or Capital	55	73
Equity Method Investment, Summarized Financial Information, Noncontrolling Interest	129	144
Equity Method Investment Summarized Financial Information, Equity	184	217
Equity Method Investment, Summarized Financial Information, Liabilities and Equity	470	452
Related Party Transaction, Expenses from Transactions with Related Party	370	426	394
Due to Affiliate	$ 29	$ 29

Equity Method Investment, Summarized Financial Information, Cost of Sales, Expenses and Income Tax Expense

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The amount of income (loss) continuing operations before taxes reported by an equity method investment of the entity.

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The total amount of expenses, including cost of sales, reported by an equity method investment of the entity.

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The amount of undistributed earnings of the unconsolidated affiliates included in consolidated retained earnings.

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For an unclassified balance sheet, amount of receivables due from an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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Amount of payable due to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

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The amount of assets reported by an equity method investment of the entity.

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The amount of current assets reported by an equity method investment of the entity.

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The amount of current liabilities reported by an equity method investment of the entity.

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Amount of equity, including noncontrolling interest, reported by an equity method investment of the entity.

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Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity.

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The amount of liabilities reported by an equity method investment of the entity.

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The amount of liabilities and equity reported by an equity method investment of the entity.

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Amount of equity attributable to noncontrolling interests of an equity method investment of the entity.

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The amount of net income (loss) reported by an equity method investment of the entity.

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The amount of noncurrent assets reported by an equity method investment of the entity.

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The amount of noncurrent liabilities reported by an equity method investment of the entity.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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Gross additions to the investment in and advance to the affiliate.

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

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Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

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