OTHER COMPREHENSIVE INCOME ITEMS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Other Comprehensive Income (Loss), Before Tax
Net unrealized gain (loss) on retirement benefits adjustment	$ 126.8	$ 178.1	$ 239.0	$ 292.4
Cumulative translation adjustment	(58.3)	(43.3)	(45.2)	(184.6)
Net unrealized gain (loss) on derivatives	2.9	2.9	8.7	(2.6)
Net unrealized gain (loss) on investments	3.6	0.3	0.2	5.2
Total other comprehensive income (loss), before tax amount	75.0	138.0	202.7	110.4
Other Comprehensive Income (Loss), Tax (Expense) Credit
Net unrealized gain (loss) on retirement benefits adjustment	(45.8)	(66.8)	(87.9)	(110.7)
Cumulative translation adjustment	(1.5)	(0.4)	5.6	4.8
Net unrealized gain (loss) on derivatives	(0.9)	(1.1)	(2.9)	0.8
Net unrealized gain (loss) on investments	(1.3)	(0.1)		(1.8)
Total other comprehensive income (loss), tax (expense) credit	(49.5)	(68.4)	(85.2)	(106.9)
Other Comprehensive Income (Loss), Net of Income Taxes
Net unrealized gain (loss) on retirement benefits adjustment	81.0	111.3	151.1	181.7
Cumulative translation adjustment	(59.8)	(43.7)	(39.6)	(179.8)
Net unrealized gain (loss) on derivatives	2.0	1.8	5.8	(1.8)
Net unrealized gain (loss) on investments	2.3	0.2	0.2	3.4
Other Comprehensive Income, Net of Income Taxes	25.5	69.6	117.5	3.5
Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interests
Comprehensive income (loss) attributable to noncontrolling interests	0.1	1.9	0.1	3.2
Net income (loss) attributable to noncontrolling interests	0.1	1.9	0.1	3.4
Cumulative translation adjustment attributable to noncontrolling interests			$ 0	$ (0.2)