XML 94 R73.htm IDEA: XBRL DOCUMENT v3.21.2
Stock-Based Compensation - Schedule of Stock-Based Compensation Expense and Resulting Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Share-based Payment Arrangement [Abstract]      
Stock-based compensation expense $ 382 $ 278 $ 270
Income tax benefit (70) (51) (50)
Stock-based compensation expense, net of tax $ 312 $ 227 $ 220