"Nvidia earlier this month said it was aiming to raise debt which sources said could amount to at least $20 billion. The firm intends to use the proceeds from the offering for general corporate purposes, including repayment and refinancing of existing debt."
Thought they were swimming in money...
I'd imagine there are a lot of lenders that have no issue giving nvidia super low interest rates because of who they are and the fact that they are printing money.
Refinancing existing debt if you have favorable market conditions always makes sense.