Corporate debt-to-GDP ratio is at levels that are higher than the last to market crashes and economic recessions.
So? As long as the USD is the reserve currency of the world, the payments for interest on those loans are not going to crash any of the big boys.
No, when your debt payments are high and interest rates are going up and your earnings are slowing down in your corporation, that's not a good thing. That's why when corporate debt was high like this in the past, we saw both market crashes and recessions. The shaded areas on the chart mark the recessions. And the corporate debt relative to GDP is higher now than it was in any of those former crashes.