CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net Income	$ 166	$ 255	$ 345	$ 485
Other Comprehensive Income (loss), Net of Tax [Abstract]
Change in unrealized gain on investments, net of tax expense (benefit) of $(1), $0, $1 and $(8)	(2)	0	1	6
Change in unrealized gain on derivative instruments, net of tax expense of $3, $0, $5 and $2	5	0	11	4
Amounts reclassified into earnings related to derivative instruments, net of tax benefit of $(2), $(1), $(2) and $(1)	(4)	(3)	(5)	(4)
Foreign currency translation	(111)	(19)	(55)	(58)
Net Defined Benefit Pension Cost and Post Retirement Plan Costs [Abstract]
Change in actuarial net loss, net of tax expense of $6, $3, $10 and $6	16	16	30	28
Change in net prior service benefit, net of tax benefit of $(4), $0, $(8) and $0	(8)	(13)	(16)	(24)
Other comprehensive loss	(104)	(19)	(34)	(48)
Total comprehensive income	$ 62	$ 236	$ 311	$ 437