Income Taxes - Narrative (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended							2 Months Ended	12 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2013 Intraperiod Tax Allocation Rule [Member]	Oct. 31, 2012 Domestic Tax Authority [Member]	Oct. 31, 2011 Domestic Tax Authority [Member]	Oct. 31, 2012 Stock Option Tax Benefits [Member]	Dec. 17, 2013 Subsequent Event [Member]	Oct. 31, 2013 MEXICO	Oct. 31, 2013 Other Comprehensive Income (Loss) [Member]	Oct. 31, 2013 Additional Paid-in Capital [Member]
Operating Loss Carryforwards [Line Items]
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 6	$ (11)	$ 2
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		546
Total income tax benefit (expense)	(171)	1,780	(1,417)	220	2,000	(1,500)			171	(212)	(8)
Adjustments to Additional Paid in Capital, Other	45	(26)	45
Deferred tax benefit					(189)
Income tax benefit			42
Undistributed earnings of foreign subsidiaries	482
State NOL carryforwards		117
Foreign NOL carryforwards		177
Net operating loss (“NOL”) carry forwards	840	583					61
Less: Valuation allowances	2,773	2,664
Income Taxes Percent Likelihood Of Being Realized Upon Settlement		50.00%
Liability for uncertain tax positions	88	90
Offsetting tax benefits associated with the correlative effects of potential transfer pricing adjustments		35
Unrecognized tax benefits that would not impact effective tax rate	6
Liability for Uncertain Tax Benefits term range	12
Decrease to uncertain tax positions								$ 8