SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND CASH FLOW INFORMATION (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND CASH FLOW INFORMATION
Transfer of inventory to equipment on operating leases	$ 341	$ 291
Accounts payable related to purchases of property and equipment	$ 53	$ 41