SHORT-TERM DEBT AND LINES OF CREDIT (Tables)

3 Months Ended

Mar. 31, 2014

Short-term Debt [Abstract]

Schedule of short-term borrowings

Our outstanding short-term borrowings were as follows:

(Millions, except percentages)	March 31, 2014			December 31, 2013
Commercial paper	$	321.9		$	326.0
Average interest rate on commercial paper	0.23		%	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 as of March 31:

(Millions)	Maturity	March 31, 2014		December 31, 2013
Revolving credit facility (Integrys Energy Group)	05/17/2014	$	275.0	$	275.0
Revolving credit facility (Integrys Energy Group)	05/17/2016	200.0		200.0
Revolving credit facility (Integrys Energy Group)	06/13/2017	635.0		635.0
Revolving credit facility (WPS)	05/17/2014	135.0		135.0
Revolving credit facility (WPS)	06/13/2017	115.0		115.0
Revolving credit facility (PGL)	06/13/2017	250.0		250.0
Total short-term credit capacity		$	1,610.0	$	1,610.0
Less:
Letters of credit issued inside credit facilities		$	70.6	$	52.4
Commercial paper outstanding		321.9		326.0
Available capacity under existing agreements		$	1,217.5	$	1,231.6