Other Income (Expense) (Tables)

6 Months Ended

Jun. 30, 2012

Other Income (Expense) [Abstract]

Other Income (Expense) [Table Text Block]

	Quarter Ended				Six Months Ended
	June 30,				June 30,
	2012		2011		2012		2011
Millions
AFUDC – Equity		$1.2		$0.5		$1.9		$1.1
Investment and Other Income	—		0.5		—		0.7
Total Other Income		$1.2		$1.0		$1.9		$1.8