Debt - Manufacturing Operations (Details) (USD $)	12 Months Ended					1 Months Ended	3 Months Ended			1 Months Ended			1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended				12 Months Ended					1 Months Ended			1 Months Ended							12 Months Ended														12 Months Ended		0 Months Ended		3 Months Ended	12 Months Ended		12 Months Ended						1 Months Ended
	Oct. 31, 2012 entity	Oct. 31, 2011	Oct. 31, 2010	Oct. 31, 2012 Manufacturing Operations [Member]	Oct. 31, 2011 Manufacturing Operations [Member]	Jan. 31, 2012 Manufacturing Operations [Member] Promissory Note With Lessor In Cherokee, Alabama [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Line of Credit [Member]	Aug. 31, 2012 Manufacturing Operations [Member] Line of Credit [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Line of Credit [Member]	Oct. 31, 2009 Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2009 Manufacturing Operations [Member] Convertible Subordinated Debt [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Convertible Subordinated Debt [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Convertible Subordinated Debt [Member]	Oct. 31, 2009 Manufacturing Operations [Member] Term loan facility and synthetic revolving facility [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Debt Of Majority Owned Dealerships [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Debt Of Majority Owned Dealerships [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Financing Arrangements and Capital Lease Obligations [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Financing Arrangements and Capital Lease Obligations [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Tax Exempt Bond [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Tax Exempt Bond [Member]	Oct. 31, 2010 Manufacturing Operations [Member] Tax Exempt Bond [Member]	Oct. 31, 2010 Manufacturing Operations [Member] Tax Exempt Bond [Member] Illinois Finance Authority Recovery Zone Facility Revenue Bond [Member]	Oct. 31, 2010 Manufacturing Operations [Member] Tax Exempt Bond [Member] County of Cook Recovery Zone Facility Revenue Bonds [Member]	Sep. 30, 2011 Manufacturing Operations [Member] Promissory Note [Member] Installments	Oct. 31, 2012 Manufacturing Operations [Member] Promissory Note [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Promissory Note [Member]	Aug. 31, 2012 Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Jun. 30, 2012 Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Nov. 30, 2011 Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Notes Payable, Other Payables [Member]	Oct. 31, 2011 Manufacturing Operations [Member] Notes Payable, Other Payables [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Minimum [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Minimum [Member] Convertible Subordinated Debt [Member] Days	Oct. 31, 2012 Manufacturing Operations [Member] Maximum [Member]	Oct. 31, 2012 Manufacturing Operations [Member] Maximum [Member] Convertible Subordinated Debt [Member]	Oct. 31, 2012 Manufacturing Operations [Member] October 15, 2020 [Member] Tax Exempt Bond [Member]	Oct. 31, 2012 Base Rate [Member] Manufacturing Operations [Member] Line of Credit [Member]	Oct. 31, 2012 Base Rate [Member] Manufacturing Operations [Member] Minimum [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 Base Rate [Member] Manufacturing Operations [Member] Maximum [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 Eurodollar [Member] Manufacturing Operations [Member] Line of Credit [Member]	Sep. 30, 2011 London Interbank Offered Rate (LIBOR) [Member] Manufacturing Operations [Member] Promissory Note [Member]	Oct. 31, 2012 London Interbank Offered Rate (LIBOR) [Member] Manufacturing Operations [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 London Interbank Offered Rate (LIBOR) [Member] Manufacturing Operations [Member] Minimum [Member] Line of Credit [Member]	Oct. 31, 2012 London Interbank Offered Rate (LIBOR) [Member] Manufacturing Operations [Member] Minimum [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 London Interbank Offered Rate (LIBOR) [Member] Manufacturing Operations [Member] Maximum [Member] Asset-Based Credit Facility [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario Three [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario Three [Member] Treasury Rate [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Nov. 02, 2011 Debt Instrument, Redemption, Scenario Two [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Nov. 03, 2011 Debt Instrument, Redemption, Scenario Two [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Jan. 31, 2012 Debt Instrument, Redemption, Scenario Two [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario Two [Member] Manufacturing Operations [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario Two [Member] Manufacturing Operations [Member] Maximum [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] Maximum [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] Prior to November 1, 2012 [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] November 1, 2014 [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] November 1, 2015 [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] November 1, 2016 [Member] Notes Payable to Banks [Member]	Oct. 31, 2012 Debt Instrument, Redemption, Scenario One [Member] Manufacturing Operations [Member] November 1, 2017 [Member] Notes Payable to Banks [Member]	Oct. 31, 2009 Call Option [Member] Manufacturing Operations [Member] Convertible Subordinated Debt [Member]	Oct. 31, 2012 2014 [Member]	Oct. 31, 2012 2013 [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Covenant Compliance, Convertible Debt Principal Amount, Maximum							$ 100,000,000
Number of Subsidiaries	15
Debt Instrument, Basis Spread on Variable Rate																																									4.50%	1.75%	2.25%	5.50%	2.75%	27.50%	1.50%	2.75%	3.25%
Debt Instrument, Redemption, Premium, Spread over Variable Rate																																																			0.50%
Long-term Debt	4,771,000,000			2,905,000,000	1,980,000,000	40,000,000	991,000,000		0		872,000,000	967,000,000		520,000,000	497,000,000		60,000,000	94,000,000	140,000,000	118,000,000	225,000,000	225,000,000					30,000,000	40,000,000						67,000,000	39,000,000
Line of Credit Facility, Amount Outstanding								1,000,000,000																								0
Line of Credit Facility, Maximum Borrowing Capacity								1,000,000,000								1,500,000,000													175,000,000				355,000,000
Line Of Credit Facility Term																5													5
Line of Credit Facility, Periodic Payment							2,500,000
Debt Instrument, Face Amount										1,000,000,000			570,000,000										225,000,000	135,000,000	90,000,000	40,000,000
Debt Instrument, Interest Rate, Stated Percentage										8.25%	8.25%		3.00%	3.00%							6.50%
Proceeds from Issuance of Senior Long-term Debt										947,000,000
Unamortized discount	87,000,000			87,000,000			9,000,000			37,000,000	28,000,000	33,000,000		50,000,000	73,000,000
Debt Related Commitment Fees and Debt Issuance Costs										16,000,000
Debt Instrument, Interest Rate, Effective Percentage											8.96%
Debt instruments, percent of aggregate principal amount redeemable																																																									35.00%
Percent of redemption price equal to principal amount																																								100.00%										100.00%					103.00%			108.25%	104.125%	102.75%	101.375%	100.00%
Debt Instrument, Redemption Price, Principal Amount Redeemed																																																								50,000,000
Debt Instrument, Redemption Period																																																							12 months
Early Repayment of Senior Debt																																																				50,000,000	50,000,000		100,000,000
Gains (Losses) on Extinguishment of Debt																																																						8,000,000
Percent of principal for applicable premium																																																		1.00%
Proceeds from Convertible Debt													553,000,000
Payments of Debt Issuance Costs	57,000,000	11,000,000	35,000,000										17,000,000
Number of trading days																																					20
Number of consecutive trading days														30
Debt Instrument Convertible Early Conversion Price Percent														130.00%
Debt Instrument, Convertible, Measurement Period														5
Debt Instrument, Convertible, Measurement Period, Business Days														5
Debt Instrument Convertible Conversion Ratio Basis														1,000
Debt Instrument, Convertible, Conversion Price														$ 50.27
Threshold percentage of last reported sale price of common stock																																							98.00%
Debt Instrument, Convertible, Conversion Ratio														19.891
Debt Instrument Convertible Trading Day Observation Period Length														40
Debt Instrument Convertible Conversion Price Percent														100.00%
Payments for Derivative Instrument, Investing Activities																																																															125,000,000
Option Indexed to Issuer's Equity, Indexed Shares																																																															11,337,870
Option Indexed to Issuer's Equity, Strike Price																																																															50.27
Proceeds from Issuance of Warrants				87,000,000									87,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights													11,337,870
Class of Warrant or Right, Exercise Price of Warrants or Rights													60.14
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum																	4.90%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum																	6.80%
Proceeds from Issuance of Long-term Debt																					170,000,000
Present Value of Future Minimum Lease Payments, Sale Leaseback Transactions				79,000,000	113,000,000
Sale Leaseback Transaction, Amount Due under Financing Arrangement																																																																37,000,000	42,000,000
Term of Financing Arrangements																																				8 months		3 years
Capital Lease Obligations				4,000,000	5,000,000
Debt Instrument, Principal Repayment Term						10 years																				4 years
Debt Instrument, Number Of Installment Payments																										16
Long-term Debt, Fair Value						58,000,000
Proceeds from Lines of Credit																														138,000,000	100,000,000
Debt, Current	1,205,000,000	1,379,000,000		172,000,000	99,000,000
Long-term Debt and Capital Lease Obligations	$ 3,566,000,000	$ 3,477,000,000		$ 2,733,000,000	$ 1,881,000,000