Property and Equipment, Net Depreciation Expense, Amortization Expense, and Interest Capitalized (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Property, Plant and Equipment [Line Items]
Depreciation	$ 206us-gaap_Depreciation	$ 260us-gaap_Depreciation	$ 248us-gaap_Depreciation
Amortization	3us-gaap_AdjustmentForAmortization	0us-gaap_AdjustmentForAmortization	4us-gaap_AdjustmentForAmortization
Interest Costs Capitalized	0us-gaap_InterestCostsCapitalized	5us-gaap_InterestCostsCapitalized	9us-gaap_InterestCostsCapitalized
Equipment Leased to Other Party [Member]
Property, Plant and Equipment [Line Items]
Depreciation	$ 105	$ 135	$ 46

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

+ Details

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- Definition

Amount of interest capitalized during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Allowance for Funds Used during Construction

-URI http://asc.fasb.org/extlink&oid=6504829

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

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