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HPE Next (Details 1) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 0 $ 19 $ 388
Total Transformation Costs 453 414 359
HPE Next      
Restructuring Cost and Reserve [Line Items]      
Program management 29 95 57
IT costs 134 148 34
Restructuring charges 219 531 296
Gains on real estate sales (7) (405) (28)
Impairment on real estate assets 47 0 0
Other 40 56 0
Total Transformation Costs $ 462 $ 425 $ 359