Business Combinations - Additional Information (Detail) - USD ($) $ in Millions	Mar. 06, 2020	May 23, 2019	Sep. 17, 2018	Aug. 04, 2017	Jun. 15, 2017
Talon Storage Solutions, Inc.
Business Acquisition [Line Items]
Business acquisition cash paid	$ 23
Cognigo Research Limited
Business Acquisition [Line Items]
Business acquisition cash paid		$ 53
Privately Held Software
Business Acquisition [Line Items]
Business acquisition cash paid			$ 3
Plexistor Limited
Business Acquisition [Line Items]
Business acquisition cash paid					$ 24
Plexistor Limited | Developed Technology
Business Acquisition [Line Items]
Business acquisition cash paid					6
Plexistor Limited | Goodwill
Business Acquisition [Line Items]
Business acquisition cash paid					$ 17
Greenqloud ehf
Business Acquisition [Line Items]
Business acquisition cash paid				$ 51
Greenqloud ehf | Developed Technology
Business Acquisition [Line Items]
Business acquisition cash paid				10
Greenqloud ehf | Goodwill
Business Acquisition [Line Items]
Business acquisition cash paid				$ 38