Divestiture Transactions and Discontinued Operations Divestiture Transactions and Discontinued Operations (Tables)

9 Months Ended

Sep. 30, 2015

Discontinued Operations and Disposal Groups [Abstract]

Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures

The following table presents the components of discontinued operations in Ameren's consolidated statement of income for the three and nine months ended September 30, 2015 and 2014:

	Three Months						Nine Months
	2015			2014			2015		2014
Operating revenues	$	—		$	—		$	—	$	1
Operating benefits (expenses)	(1		)	(1		)	2		(4		)
Operating income (loss) before income tax	(1		)	(1		)	2		(3		)
Income tax benefit	1			—			50		—
Income (loss) from discontinued operations, net of taxes	$	—		$	(1	)	$	52	$	(3	)

The following table presents the carrying amounts of the components of assets and liabilities of Ameren’s discontinued operations, which consist primarily of AROs and related deferred income tax assets associated with the abandoned Meredosia and Hutsonville energy centers, at September 30, 2015, and December 31, 2014:

	September 30, 2015		December 31, 2014
Assets of discontinued operations
Accumulated deferred income taxes, net	$	17	$	15
Total assets of discontinued operations	$	17	$	15
Liabilities of discontinued operations
Accounts payable and other current obligations	$	1	$	1
Asset retirement obligations	29		32
Total liabilities of discontinued operations	$	30	$	33