Consolidated Statements of Stockholders’ Deficit Consolidated Statements of Stockholders' Deficit (Parenthetical) $ in Millions	12 Months Ended
Oct. 31, 2014 USD ($)
Statement of Stockholders' Equity [Abstract]
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Tax	$ 16
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Repurchase, Tax	$ 3

Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Repurchase, Tax

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration