Open Settings on your iPhone, iPad, or iPod touch
Tap your name at the top
Scroll down and tap Sign Out
Enter your Apple ID password if prompted
Turn off Find My iPhone if asked
Choose whether to keep a copy of your data on the device
Tap Sign Out again to confirm
On a Mac, open System Settings or System Preferences
Click your Apple ID
Select Overview or iCloud
Click Sign Out
Enter your Apple ID password if prompted
Choose whether to keep a copy of your data on the Mac
Confirm Sign Out
On Windows, open iCloud for Windows
Click Sign Out
Confirm the sign-out if prompted
On the web, go to iCloud.com
Sign out from your account menu
Close the browser if needed