Other Income (Expense) (Tables)

9 Months Ended

Sep. 30, 2012

Other Income (Expense) [Abstract]

Other Income (Expense) [Table Text Block]

	Quarter Ended					Nine Months Ended
	September 30,					September 30,
	2012		2011			2012		2011
Millions
AFUDC – Equity		$1.5		$0.6			$3.4		$1.7
Investment and Other Income (Expense)	—		(0.1		)	—		0.6
Total Other Income		$1.5		$0.5			$3.4		$2.3