Utility Regulatory Assets and Liabilities and Regulatory Matters (Tables)

12 Months Ended

Sep. 30, 2014

Regulated Operations [Abstract]

Regulatory Assets and Liabilities Associated with Utilities

The following regulatory assets and liabilities associated with Utilities are included in our accompanying balance sheets at September 30:

	2014		2013
Regulatory assets:
Income taxes recoverable	$	110.7	$	106.1
Underfunded pension and postretirement plans	110.1		94.5
Environmental costs	14.6		17.1
Deferred fuel and power costs	11.8		8.3
Removal costs, net	16.8		13.3
Other	4.2		5.6
Total regulatory assets	$	268.2	$	244.9
Regulatory liabilities (a):
Postretirement benefits	$	18.6	$	16.5
Environmental overcollections	0.3		2.6
Deferred fuel and power refunds	0.3		8.3
State tax benefits — distribution system repairs	10.1		8.4
Other	3.2		1.5
Total regulatory liabilities	$	32.5	$	37.3