Other Income And Expenses

12 Months Ended

Dec. 31, 2012

Other Nonoperating Income (Expense) [Abstract]

The following table presents the components of "Other Income and Expenses" in the Ameren Companies’ statements of income (loss) for the years ended December 31, 2012, 2011, and 2010:



	2012			2011		2010
Ameren:^(a)
Miscellaneous income:
Interest and dividend income	$	5	^(b)	$	4	$	5
Interest income on industrial development revenue bonds	28			28		28
Allowance for equity funds used during construction	36			34		52
Other	2			3		5
Total miscellaneous income	$	71		$	69	$	90
Miscellaneous expense:
Donations	$	24	^(c)	$	8	$	19
Other	13			15		14
Total miscellaneous expense	$	37		$	23	$	33
Ameren Missouri:
Miscellaneous income:
Interest and dividend income	$	4	^(b)	$	2	$	3
Interest income on industrial development revenue bonds	28			28		28
Allowance for equity funds used during construction	31			30		50
Other	—			1		2
Total miscellaneous income	$	63		$	61	$	83
Miscellaneous expense:
Donations	$	9		$	3	$	8
Other	5			7		5
Total miscellaneous expense	$	14		$	10	$	13
Ameren Illinois:
Miscellaneous income:
Interest and dividend income	$	—		$	1	$	1
Allowance for equity funds used during construction	5			4		2
Other	2			2		4
Total miscellaneous income	$	7		$	7	$	7
Miscellaneous expense:
Donations	$	11	^(c)	$	1	$	5
Other	6			5		8
Total miscellaneous expense	$	17		$	6	$	13


(a)	Includes amounts for Ameren registrant and nonregistrant subsidiaries and intercompany eliminations.


(b)	Includes interest income relating to a 2012 refund of charges included in an expired power purchase agreement with Entergy. See Note 2 - Rate and Regulatory Matters for additional information.


(c)	Includes Ameren Illinois' one-time $7.5 million donation and $1 million annual donation to the Illinois Science and Energy Innovation Trust and $1 million annual donation for customer assistance programs pursuant to the IEIMA as a result of Ameren Illinois' 2012 participation in the formula ratemaking process.