Table:
|  |  |  | Payments due by period |  |
| --- | --- | --- | --- | --- |
|  | Total | 2020 | 2021-2022 | 2023-2024 |
| Debt(1) | $1,554.8 | $80.0 | $184.1 | $1,290.7 |
| Interest on debt (2) | 171.5 | 54.7 | 102.0 | 14.8 |
| Data processing and maintenance commitments | 103.4 | 44.5 | 46.5 | 12.4 |
| Operating lease payments | 27.5 | 12.6 | 11.5 | 3.4 |
| Other(3) | 3.9 | 1.2 | 2.4 | 0.3 |
| Total | $1,861.1 | $193.0 | $346.5 | $1,321.6 |
Paragraphs:
As of December 31, 2019, our required annual payments relating to these contractual obligations were as follows (in millions):
(1) Includes finance lease obligations.
(2) These calculations include the effect of our interest rate swaps and assume that (a) applicable margins remain constant; (b) our term A loan and revolving credit facility variable rate debt is priced at the one-month LIBOR rate in effect as of December 31, 2019; (c) only mandatory debt repayments are made; and (d) no refinancing occurs at debt maturity.
(3) Other includes commitment fees on our revolving credit facility and rating agencies fees.
Question:
What was the difference between Total Debt and Total Interest on Debt?
Answer: 1554.8-171.5 = 1383.3