Working with CloudTrail trails - Amazon CloudTrail
Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Working with CloudTrail trails

For an ongoing record of events in your Amazon account, create a trail. A trail enables CloudTrail to deliver log files to an Amazon S3 bucket. By default, when you create a trail in the console, the trail applies to all Amazon Web Services Regions in the Amazon partition in which you are working. The trail logs events from all Regions in the Amazon partition and delivers the log files to the Amazon S3 bucket that you specify. Additionally, you can configure other Amazon services to further analyze and act upon the event data collected in CloudTrail logs.

If you have created an organization in Amazon Organizations, you can create a trail that will log all events for all Amazon Web Services accounts in that organization. Creating an organization trail helps you define a uniform event logging strategy for your organization.