IDE Settings Synchronization
If you want to use settings synchronization a special plug-in should be installed from Plugins Repository or via IntelliJ IDEA Plug-in Manager.
Sharing IntelliJ IDEA configuration settings makes configuring new IDE set-ups a breeze. Just create a JetBrains Account, log on to a dedicated JetBrains server at IntelliJ IDEA startup, and the settings will be synched with the server and applied automatically.
The IntelliJ Configuration Server lets you share virtually all of the IDE and project settings, with the exception of some platform-specific ones and those containing local paths. Your code style settings — the keymap, fonts and colors scheme, inspection profiles, and other settings — are available no matter where you start IntelliJ IDEA.
Read more details in IntelliJ IDEA Knowledge Base