CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Statement of Other Comprehensive Income [Abstract]
Net Income	$ 179	$ 230
Other Comprehensive Income, Net of Tax [Abstract]
Change in unrealized gain on investments, net of tax expense (benefit) od $2 and $(8)	(3)	(6)
Change in unrealized gain on derivative instruments, net of tax expense of $2 and $2	6	4
Amounts reclassified into earnings related to derivative instruments	(1)	(1)
Foreign currency translation	(56)	39
Net Defined Benefit Pension Cost and Post Retirement Plan Costs [Abstract]
Change in actuarial net loss, net of tax expense of $4 and $3	14	12
Change in net prior service benefit, net of tax benefit of $(4) and zero	(8)	(11)
Other comprehensive income (loss)	70	(29)
Total Comprehensive Income (Loss)	$ 249	$ 201