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Financial Instruments - Schedule of Pre-Tax Effect of Derivative Instruments in Cash Flow Hedging Relationships Included in Earnings (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2024
Oct. 31, 2023
Oct. 31, 2022
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings $ 274 $ 84 $ 779
Cash flow hedges:      
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings 274 84 779
Cash flow hedges: | Products net revenue      
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings 408 243 877
Cash flow hedges: | Cost of products net revenue      
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings (142) (167) (101)
Cash flow hedges: | Operating expenses      
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings (4) (4) (1)
Cash flow hedges: | Interest and other, net      
Pre-tax effect of derivative instruments in cash flow hedging relationships      
Gain/ (loss) reclassified from Accumulated other comprehensive loss into earnings $ 12 $ 12 $ 4