XML 78 R68.htm IDEA: XBRL DOCUMENT v3.21.1
Fair Value - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 30, 2021
Apr. 30, 2020
Apr. 30, 2021
Apr. 30, 2020
Oct. 31, 2020
Financial assets and liabilities measured at fair value on a recurring basis          
Impairment of goodwill $ 0 $ 865 $ 0 $ 865  
Interest and Other, Net          
Financial assets and liabilities measured at fair value on a recurring basis          
Recognized gain from equity investments without readily determinable fair value 25        
Significant Other Unobservable Remaining Inputs (Level 3)          
Financial assets and liabilities measured at fair value on a recurring basis          
Right-of-use asset impairment charges 19   68    
HPC & MCS          
Financial assets and liabilities measured at fair value on a recurring basis          
Impairment of goodwill   865      
HPC & MCS | Significant Other Unobservable Remaining Inputs (Level 3)          
Financial assets and liabilities measured at fair value on a recurring basis          
Impairment of goodwill   $ 865      
Fair Value          
Financial assets and liabilities measured at fair value on a recurring basis          
Fair value, short-term and long-term debt 17,100   17,100   $ 17,100
Carrying Value          
Financial assets and liabilities measured at fair value on a recurring basis          
Fair value, short-term and long-term debt $ 15,800   $ 15,800   $ 15,900