Stockholders' Deficit Accumulated Other Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Oct. 31, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance	$ (1,824)
Other comprehensive income (loss) before reclassifications	(542)
Amounts reclassified out of accumulated other comprehensive loss	103
Net current-period other comprehensive income (loss)	(439)
Accumulated Other Comprehensive Loss, Ending Balance	(2,263)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance	0
Other comprehensive income (loss) before reclassifications	1
Amounts reclassified out of accumulated other comprehensive loss	0
Net current-period other comprehensive income (loss)	1
Accumulated Other Comprehensive Loss, Ending Balance	1
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance	(75)
Other comprehensive income (loss) before reclassifications	(52)
Amounts reclassified out of accumulated other comprehensive loss	0
Net current-period other comprehensive income (loss)	(52)
Accumulated Other Comprehensive Loss, Ending Balance	(127)
Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance	(1,749)
Other comprehensive income (loss) before reclassifications	(491)
Amounts reclassified out of accumulated other comprehensive loss	103
Net current-period other comprehensive income (loss)	(388)
Accumulated Other Comprehensive Loss, Ending Balance	(2,137)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	105
Other Comprehensive Income (Loss), Tax	(2)
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Cost (Credit) [Member] | Selling, General and Administrative Expenses [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	(4)
Accumulated Defined Benefit Plans Adjustment, Net Unamortized Gain (Loss) [Member] | Selling, General and Administrative Expenses [Member]
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax	$ 109