LONG-TERM DEBT (Notes)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-Term Debt

(Millions)	June 30, 2015			December 31, 2014
WPS	$	1,175.1		$	1,175.1
PGL (1)	850.0			850.0
NSG	82.0			82.0
Integrys Holding	974.8			974.8
Total	3,081.9			3,081.9
Unamortized discount on debt	(0.6		)	(0.6		)
Total debt	3,081.3			3,081.3
Less current portion (2)	180.0			125.0
Total long-term debt	$	2,901.3		$	2,956.3

⁽¹⁾  On August 1, 2015, the interest rate on PGL's $50.0 million of 2.625% Series WW Bonds was reset. The new interest rate is 1.875%. The new mandatory interest reset date is August 1, 2020. The final maturity of these bonds is February 1, 2033.

⁽²⁾  In July 2015, we offered to buy back $55.0 million of 8.00% Senior Notes due June 1, 2016. The $55.0 million balance of these notes was included in the current portion of long-term debt on our balance sheet at June 30, 2015.