SHORT-TERM DEBT AND LINES OF CREDIT

9 Months Ended

Sep. 30, 2021

Short-term Debt [Abstract]

SHORT-TERM DEBT AND LINES OF CREDIT

SHORT-TERM DEBT AND LINES OF CREDIT

The following table shows our short-term borrowings and their corresponding weighted-average interest rates:

(in millions, except percentages)	September 30, 2021			December 31, 2020
Commercial paper
Amount outstanding	$	106.5		$	210.5
Weighted-average interest rate on amounts outstanding	0.13		%	0.18		%

Our average amount of commercial paper borrowings based on daily outstanding balances during the nine months ended September 30, 2021 was $177.8 million with a weighted-average interest rate during the period of 0.15%.

The information in the table below relates to our revolving credit facility used to support our commercial paper borrowing program, including available capacity under this facility:

(in millions)	Maturity	September 30, 2021
Revolving credit facility (1)	October 2022	$	400.0
Less:
Letters of credit issued inside credit facility		$	1.3
Commercial paper outstanding		106.5
Available capacity under existing credit facility		$	292.2

(1)    We intend to request approval from the PSCW to extend the maturity of our facility to September 2026.