(Reuters) -Amazon ( AMZN ) is looking to raise about $12 billion from the corporate bond market in its first such deal in U.S. dollars in about three years, Bloomberg News reported on Monday, citing people familiar with the matter.

The e-commerce giant filed for a six-part bond sale earlier in the day without disclosing a size, a regulatory filing showed.

Amazon ( AMZN ) did not immediately respond to a Reuters request for comment.

As artificial intelligence workloads grow in scale, big technology firms are turning to large-scale debt sales to fund expansion plans that cost tens of billions of dollars.

Last month, Meta Platforms ( META ) announced its biggest bond sale of up to $30 billion, while cloud infrastructure and software maker Oracle is also reportedly looking to raise $15 billion in bond sales.