https //www.apple.com Login : Sign in with your Apple ID
To login into Apple devices, open the Settings app. Tap Sign in to your [device]. On iPhone, sign in to your Apple ID in the Settings app · Enter your Apple ID and password.
Sign in with your Apple ID
1. Open the Settings app.
2. Tap Sign in to your [device].
3. Enter your Apple ID and password.
4. If prompted, enter the six-digit verification code sent to your trusted device or phone number and complete sign in.
If you’re already signed in to iCloud on the iPhone paired with your Apple Watch, you will automatically be signed in to that Apple ID.
Sign in on your Mac
1. Choose Apple menu > System Settings. In earlier versions of macOS, choose Apple menu > System Preferences.
2. From the sidebar, click Sign In with your Apple ID. In earlier versions of macOS, click Sign In.
3. Enter your Apple ID and password.
4. If prompted, enter the six-digit verification code sent to your trusted device or phone number and complete sign in.
Also Read : Apple iPhone Upgrade Program
Sign in on Apple TV
1. To open Control Center, press and hold the TV button 
on the Siri Remote or Apple TV Remote.
2. Select Add User and follow the onscreen instructions.
Sign in on the web
Use your Apple ID to sign in to Apple websites.
- iCloud.com – Use iCloud from anywhere by signing in to iCloud.com with your Apple ID.
- Apple Account – Manage your Apple ID by signing in to appleid.apple.com with your Apple ID.
Sign in on apps and other devices
Your Apple ID can be used to sign into Apple Music, the Apple TV app, and other Apple services on supported third-party devices
Depending on your device, you might need to use an app-specific password
Sign in to use Apple Music, the Apple TV app, and more on your other devices
You can sign in to Apple Music on Android, or sign in to the Apple Music app or Apple TV app on your smart TV, game console, or streaming device.
On your Windows PC, you can sign in to iTunes for Windows to buy movies and TV shows, or listen to songs on Apple Music.
Sign in to use iCloud on your other devices
On your Windows PC, you can set up and sign in to iCloud for Windows to access photos, documents, and more.
You can also sign in to iCloud.com from your browser. Learn which iCloud.com features are available on your device.
Use Sign in with Apple on third-party apps and websites
If you see a Sign in with Apple button on a participating third-party app or website, you can use your existing Apple ID to quickly set up an account and sign in.
