External debt - IMF
Funds committed by the creditor but not yet utilized by the borrower.
In BIS terminology, this refers to open lines of credit that are legally binding on lending banks.
A transaction in the balance of payments or a position in the international investment position (IIP) is only recorded when an actual disbursement takes place.
International Monetary Fund (IMF), "External Debt Statistics: Guide for Compilers and Users; Appendix III. Glossary of External Debt Terms", Washington D.C., 2003