Balance Sheet Details - Schedule of Revolving Short-Term Financing Arrangement (Details) $ in Millions	9 Months Ended
	Jul. 31, 2017 USD ($)
Trade Receivables Sold and Cash Received Roll Forward [Roll Forward]
Balance at beginning of year	$ 145
Trade receivables sold	2,796
Cash receipts	(2,846)
Foreign currency and other	6
Balance at end of period	$ 101