XML 122 R105.htm IDEA: XBRL DOCUMENT v3.10.0.1
Supplementary Financial Information - Other Non-Current Liabilities (Details) - USD ($)
$ in Millions
Oct. 31, 2018
Oct. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Pension, post-retirement, and post-employment liabilities $ 1,645 $ 1,999
Deferred tax liability 100 1,410
Tax liability 2,063 2,005
Deferred revenue 1,005 921
Other 793 827
Other non-current liabilities $ 5,606 $ 7,162