Short-Term Debt and Lines of Credit (Tables)

12 Months Ended

Dec. 31, 2020

Short-term Debt [Abstract]

Short-term debt balances and their corresponding weighted-average interest rates

The following table shows our short-term borrowings and their corresponding weighted-average interest rates as of December 31:

(in millions, except percentages)	2020			2019
Commercial paper
Amount outstanding at December 31	$	1,436.9		$	830.8
Average interest rate on amounts outstanding at December 31	0.21		%	2.00		%
Term loan
Amount outstanding at December 31	$	340.0		$	—
Average interest rate on amounts outstanding at December 31	0.99		%	—		%

Schedule of revolving credit facilities

The information in the table below relates to our term loan agreement and our revolving credit facilities used to support our commercial paper borrowing programs, including remaining available capacity under these credit agreements as of December 31:

(in millions)	Maturity	2020
Term loan agreement (WEC Energy Group)	March 2021	$	340.0
Revolving credit facility (WEC Energy Group)	October 2022	1,200.0
Revolving credit facility (WE)	October 2022	500.0
Revolving credit facility (WPS)	October 2022	400.0
Revolving credit facility (WG)	October 2022	350.0
Revolving credit facility (PGL)	October 2022	350.0
Total short-term credit capacity		$	3,140.0
Less:
Letters of credit issued inside credit facilities		$	2.3
Term loan outstanding		340.0
Commercial paper outstanding		1,436.9
Available capacity under existing agreements		$	1,360.8