Despite claims in the past the data collected via the different online services offered by the company, Google changed the paragraph from their terms of services, allowing to combine the data collected from all their services and track the users in an even more extended way.
archived source: https://wellthissucks.xyz/2016/10/21/google-changes-its-terms-of-services-to-allow-even-more-excessive-tracking-of-users-archived-source/