OTHER COMPREHENSIVE INCOME ITEMS (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Other Comprehensive Income (Loss), Before Tax
Net unrealized gain (loss) on retirement benefits adjustment	$ 106.6	$ 86.3	$ 345.6	$ 378.7
Cumulative translation adjustment	(103.5)	(198.2)	(148.7)	(382.8)
Net unrealized gain (loss) on derivatives	6.2	(5.7)	14.9	(8.3)
Net unrealized gain (loss) on investments	(19.3)	3.4	(19.1)	8.6
Total other comprehensive income (loss), before tax amount	(10.0)	(114.2)	192.7	(3.8)
Other Comprehensive Income (Loss), Tax (Expense) Credit
Net unrealized gain (loss) on retirement benefits adjustment	(39.4)	(33.6)	(127.3)	(144.3)
Cumulative translation adjustment	0.1	6.4	5.7	11.2
Net unrealized gain (loss) on derivatives	(2.2)	2.1	(5.1)	2.9
Net unrealized gain (loss) on investments	6.7	(1.2)	6.7	(3.0)
Total other comprehensive income (loss), tax (expense) credit	(34.8)	(26.3)	(120.0)	(133.2)
Other Comprehensive Income (Loss), Net of Income Taxes
Net unrealized gain (loss) on retirement benefits adjustment	67.2	52.7	218.3	234.4
Cumulative translation adjustment	(103.4)	(191.8)	(143.0)	(371.6)
Net unrealized gain (loss) on derivatives	4.0	(3.6)	9.8	(5.4)
Net unrealized gain (loss) on investments	(12.6)	2.2	(12.4)	5.6
Other Comprehensive Income (Loss), Net of Income Taxes	(44.8)	(140.5)	72.7	(137.0)
Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interests
Comprehensive income (loss) attributable to noncontrolling interests	0.1	2.0	0.1	5.2
Net income (loss) attributable to noncontrolling interests	0.1	2.2	0.1	5.6
Cumulative translation adjustment attributable to noncontrolling interests	$ 0	$ (0.2)	$ 0	$ (0.4)