Significant Accounting Policies Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Gain and losses recognized on the sale and disposal of property

The amount of gains and losses for the years ended December 31 was as follows:

(in millions)	2013			2012			2011
Gains on the sale of property	$	6.7		$	6.2		$	18.7
Losses on the sale and disposal of property	(1.2		)	(1.3		)	(2.7		)
Net gains on sale and disposal of property	$	5.5		$	4.9		$	16.0