CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Statement of Comprehensive Income [Abstract]    
Net income $ 72 $ 195
Other comprehensive income (loss):    
Unrealized loss on investments, net of tax benefit of $0 and $1 0 (3)
Unrealized gain (loss) on derivative instruments, net of tax (expense) benefit of $(3) and $1 7 (2)
Amounts reclassified into earnings related to derivative instruments, net of tax (expense) benefit of $1 and $(1) (3) 0
Foreign currency translation, net of tax benefit of $6 and $5 (265) (55)
Net defined benefit pension cost and post retirement plan costs:    
Change in actuarial net loss, net of tax expense of $(2) and $(4) 4 13
Change in net prior service benefit, net of tax benefit of $2 and $4 (2) (8)
Other comprehensive loss (259) (55)
Total comprehensive income (loss) $ (187) $ 140