Apple has reportedly struck a deal to move a portion of its iCloud infrastructure to Google Cloud Platform. According to CRN, the deal, which was reportedly inked in late 2015, is worth quite a hefty sum:

According to the sources, Google executives have told partners that Apple is spending between $400 million and $600 million on Google Cloud Platform, although this couldn't be independently confirmed. Also unclear is whether this range refers to an annual spending rate or a set amount of capacity.

As noted by the report, Apple's deal with Google would signal a partial shift away from Amazon Web Services (AWS) and Microsoft Azure. Apple is also investing in a number of new data centers in the Ireland, Denmark and the U.S., sparking speculation that the company may move to cut reliance on third party cloud platforms in the future.

In any case, if reports are true, snagging Apple as a customer would be a second big win for Google's cloud efforts after it was announced Google Cloud Platform will soon power Spotify's back end as well.