Other Income (Tables)

12 Months Ended

Dec. 31, 2015

Other Income and Expenses [Abstract]

Other Income [Table Text Block]

Year Ended December 31	2015		2014		2013
Millions
AFUDC–Equity		$3.3		$7.8		$4.6
Gain on Sale of Available-for-sale Securities	0.1		0.2		2.2
Investments and Other Income	1.3		0.6		2.5
Total Other Income		$4.7		$8.6		$9.3