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CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Unaudited) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Statement of Comprehensive Income [Abstract]        
Net income $ 397 $ 191 $ 1,027 $ 617
Other comprehensive income (loss):        
Gain (loss) on derivative instruments, net of tax benefit (expense) of zero, $1, $(2) and $2 (2) 6 3 4
Amounts reclassified into earnings related to derivative instruments, net of tax benefit (expense) of zero, $1, $4 and $2 (5) (1) (17) (9)
Foreign currency translation, net of tax benefit (expense) of $(2), zero, zero and zero (15) (7) (4) 72
Change in net actuarial gain (loss) and prior service cost associated with defined benefit plan, net of tax benefit (expense) of $1, zero, $(2) and zero 0 0 (6) 2
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total (22) (2) (24) 69
Total comprehensive income $ 375 $ 189 $ 1,003 $ 686