The US spends around $35 billion/year in actual subsidies on fossil fuels.[1] (About $20 billion to producers, and about $15 billion to consumers.
Further more, the cost of not charging the fossil fuel industry for carbon emissions should absolutely be counted as a real subsidy, although its value is harder to calculate. But we force industries to clean up other pollutants, or we otherwise regulate their environmental impact, which costs them. If we gave one industry a pass on those regulations, that would be uncontroversially a subsidy.
1. https://www.theguardian.com/environment/climate-consensus-97...