None of the short-term debt is held by the Government.
Some $15 billion in private short-term debt is due this month.
They also accumulated $1.7 billion in short-term debt around this time.
Proceeds from the sale would be used to pay down about $2.2 billion in short-term debt.
Total short-term debt is widely believed to exceed $150 billion.
And companies took on short-term debt to pay for construction.
The company needs about $200 million to cover its short-term debt.
This also limited its access to short-term debt called commercial paper.
Delta added that the money might also be used to reduce short-term debt.
The sales have helped clear almost all of the company's short-term and long-term debt.