Short-term Debt and Lines of Credit (Tables)

9 Months Ended

Sep. 30, 2015

Short-term Debt [Abstract]

Schedule of short-term borrowings

Our outstanding short-term borrowings were as follows:

(in millions, except percentages)	September 30, 2015			December 31, 2014
Commercial paper	$	661.5		$	617.6
Weighted-average interest rate on commercial paper outstanding	0.32		%	0.22		%

Schedule of revolving credit facilities and remaining available capacity

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

(in millions)	Maturity	September 30, 2015
WEC Energy Group	December 2019	$	400.0
Wisconsin Electric	December 2019	500.0
Wisconsin Gas	December 2019	350.0
Integrys	June 2017	285.0
Integrys	May 2019	265.0
WPS	May 2019	135.0
WPS	June 2017	115.0
PGL	June 2017	250.0
Total short-term credit capacity		$	2,300.0
Less:
Letters of credit issued inside credit facilities		$	18.0
Commercial paper outstanding		661.5
Available capacity under existing agreements		$	1,620.5