Consolidated Statements of Stockholders' Equity (Parenthetical) $ in Millions	12 Months Ended
	Oct. 31, 2019 USD ($) $ / shares
Cash dividends declared per share (in dollars per share) | $ / shares	$ 0.4575
Effects of adoption of accounting standard updates	$ (2,181)	[1]
Accounting Standards Update 2016-16
Effects of adoption of accounting standard updates	2,300
Accounting Standards Update 2014-09
Effects of adoption of accounting standard updates	$ 124

[1] For fiscal 2019, includes $2.3 billion related to an addition to accumulated deficit as a result of the adoption of an accounting standard update for Income Taxes and $124 million related to a reduction to accumulated deficit as a result of the adoption of the new revenue accounting standard.