Other Income (Expense) (Tables)

6 Months Ended

Jun. 30, 2015

Other Income (Expense) [Abstract]

Other Income (Expense) [Table Text Block]

	Quarter Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015		2014
Millions
AFUDC–Equity		$0.7			$2.0			$1.6		$3.8
Gain on Sale of Available-for-sale Securities	0.1			0.2			0.1		0.2
Investments and Other Income (Expense)	(0.1		)	(0.3		)	0.1		(0.1		)
Total Other Income		$0.7			$1.9			$1.8		$3.9