Android users can access their documents saved in Google Docs without internet. Google Docs for mobile now have offline access. Now you can select any file in Google Docs to make it available offline. So regardless of whether you’re connected to the internet, you’re always connected to those files.
Even better, Google Docs automatically updates your offline files when you’re on Wi-Fi. You can also manually update files anytime you have a data connection by opening the file or tapping ‘Update’ from the Offline section of the app.
In addition to the mobile update, Google also improved the Google Docs reading experience in Android tablets too. Now, when you open a Google document on your tablet while online, you’ll get a high-resolution version of the document. Swipe left and right to flip between pages, or use the slider at the bottom to page ahead quickly. [source]