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SEGMENT INFORMATION - Reconciliation of Reportable Results (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Reconciliation of Operating Profit from Segments to Consolidated        
Total reportable segment's income from operations $ 364 $ 277 $ 760 $ 588
Transformational initiatives (9) (15) (20) (28)
Amortization of intangible assets related to business combinations (46) (46) (90) (94)
Acquisition and integration costs (13) (11) (22) (24)
Asset Impairment Charges (2) (99) (2) (99)
Business exit and divestiture costs (3) 0 (4) 0
Other (3) (4) (6) (26)
Interest income 1 3 1 6
Interest expense (20) (20) (39) (40)
Other income (expense), net 4 36 7 57
Income before taxes, as reported $ 273 $ 121 $ 585 $ 340