XML 14 R4.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (Unaudited) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Other comprehensive income (loss), tax, parenthetical disclosures    
Unrealized gain on derivative instruments, tax $ 0 $ (2)
Amounts reclassified into earnings related to derivative instruments, tax 0 (1)
Foreign currency translation, tax 0 (9)
Net defined benefit pension cost and post retirement plan costs, tax    
Change in actuarial net loss, tax 3 4
Change in net prior service benefit, tax $ 1 $ 0