There is 30T in government debt, and interest payments last year were ~500B/~6T of total spending. What impact would a 1% move have on these payments, is this

There is 30T in government debt, and interest payments last year were ~500B/~6T of total spending. What impact would a 1% move have on these payments, is this public information? (ie. how much is fixed vs floating etc). Can the Fed even raise rates in an environment like that?