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Taxes on Earnings - Schedule of Domestic and Foreign Components of Earnings (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2018
Oct. 31, 2017
Oct. 31, 2016
Domestic and foreign components of earnings (loss) before taxes      
U.S. $ 242 $ (14) $ 468
Non-U.S. 2,771 3,290 3,293
Earnings from continuing operations before taxes $ 3,013 $ 3,276 $ 3,761