COMPREHENSIVE INCOME (Details) (USD $) In Millions	3 Months Ended	9 Months Ended
Jul. 31, 2011	Jul. 31, 2010	Jul. 31, 2011	Jul. 31, 2010
COMPREHENSIVE INCOME
Net income	$ 714.8	$ 619.5	$ 2,135.8	$ 1,414.9
Other comprehensive income (loss), net of tax:
Retirement benefits adjustment	69.3	85.1	171.6	312.1
Cumulative translation adjustment	(46.2)	(46.0)	197.9	(121.5)
Unrealized gain (loss) on derivatives	3.6	(7.9)	13.2	14.0
Unrealized gain (loss) on investments	3.0	3.0	(0.4)	3.6
Comprehensive income	744.5	653.7	2,518.1	1,623.1
Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interests
Comprehensive income attributable to noncontrolling interests	2.3	2.5	5.5	7.0
Net income attributable to noncontrolling interests	2.5	2.5	5.5	7.2
Cumulative translation adjustment attributable to noncontrolling interests	$ (0.2)			$ (0.2)

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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The portion of net Income or Loss attributable to the noncontrolling interest (if any) deducted in order to derive the portion attributable to the parent.

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Gross appreciation or the gross loss in value of the total unsold securities. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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The increase (decrease) in accumulated comprehensive income during the period related to pension and other postretirement benefit plans, after tax. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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Net of tax effect change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. A cash flow hedge is a hedge of the exposure to variability in the cash flows of a recognized asset or liability or a forecasted transaction that is attributable to a particular risk. The change includes an entity's share of an equity investee's increase or decrease in deferred hedging gains or losses. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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