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Stockholders' Equity - Taxes Related to Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Millions
3 Months Ended
Jan. 31, 2019
Jan. 31, 2018
Taxes on change in net unrealized losses on cash flow hedges:    
Tax (provision) benefit on net unrealized gains (losses) arising during the period $ (1) $ 25
Tax provision (benefit) on net (gains) losses reclassified into earnings 16 (4)
Taxes on change in net unrealized (losses) gains on cash flow hedges 15 21
Taxes on change in unrealized components of defined benefit plans:    
Tax benefit (provision) on (losses) gains arising during the period 10 (1)
Tax provision on amortization of actuarial loss and prior service benefit (3) (3)
Tax provision on curtailments, settlements and other (9) (7)
Taxes on change in unrealized components of defined benefit plans (2) (11)
Tax provision on change in cumulative translation adjustment (3) (3)
Tax benefit on other comprehensive income $ 10 $ 7