6. Short-Term Debt

Details of the credit facilities and related borrowings are presented in the following table:


	March 31, 2017						December 31, 2016
					Letters						Letters
	Credit		Borrowings		of Credit		Credit		Borrowings		of Credit
(millions)	Facilities		Outstanding ⁽¹⁾		Outstanding		Facilities		Outstanding ⁽¹⁾		Outstanding
Tampa Electric Company:
5-year facility ⁽²⁾	$	325	$	175	$	1	$	325	$	40	$	1
3-year accounts receivable facility ⁽³⁾		150		101		0		150		130		0
Total	$	475	$	276	$	1	$	475	$	170	$	1

(1)	Borrowings outstanding are reported as notes payable.

(2)	This 5-year facility matures March 22, 2022.

(3)	This 3-year facility matures March 23, 2018.

At March 31, 2017, these credit facilities required commitment fees ranging from 12.5 to 30.0 basis points. The weighted-average interest rate on outstanding amounts payable under the credit facilities at March 31, 2017 and December 31, 2016 was 1.72% and 1.49%, respectively.

Tampa Electric Company Credit Facility

On March 22, 2017, TEC amended its $325 million bank credit facility, entering into a Fifth Amended and Restated Credit Agreement. The amendment (i) extended the maturity date of the credit facility from December 17, 2018 to March 22, 2022 (subject to further extension with the consent of each lender); (ii) includes a $50 million letter of credit facility; and (iii) made other technical changes.