I think this headline gave me a stroke. They're settling for 29M with DC and Indiana, but -392M with other states? What does settling for negative money mean

I think this headline gave me a stroke. They're settling for 29M with DC and Indiana, but -392M with other states? What does settling for negative money mean, the states pay Google? Also the details in the headline aren't in the article. The article doesn't mention "392M", nor DC.