NOTE 11 - OTHER COMPREHENSIVE INCOME

Comprehensive income includes net income as reported on the statements of income and all other changes in common stockholders' equity, except those resulting from transactions with common stockholders. A reconciliation of net income to comprehensive income for the three and nine months ended September 30, 2011, and 2010 is shown below for Ameren, Ameren Illinois and Genco. Ameren Missouri's comprehensive income was composed only of its net income for the three and nine months ended September 30, 2011 and 2010.


	Three Months						Nine Months
	2011			2010			2011			2010
Ameren:^(a)
Net income (loss)	$	287		$	(164	)	$	500		$	97
Unrealized net gain (loss) on derivative hedging instruments, net of taxes (benefit) of $(2), $9, $(6), and $20, respectively		(2	)		14			(8	)		31
Reclassification adjustments for derivative (gain) loss included in net income, net of taxes (benefit) of $1, $8, $(1), and $20, respectively		(1	)		(14	)		2			(34	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $- $(2), and $6, respectively		(1	)		-			(2	)		6
Total comprehensive income (loss), net of taxes	$	283		$	(164	)	$	492		$	100
Less: Net income attributable to noncontrolling interests, net of taxes		2			3			6			10
Total comprehensive income (loss) attributable to Ameren Corporation, net of taxes	$	281		$	(167	)	$	486		$	90
Ameren Illinois:
Net income	$	98		$	110		$	170		$	215
Pension and other postretirement activity, net of income taxes (benefit) of $(1), $(1), $(2), and $(1), respectively		(1	)		(1	)		(3	)		(2	)
Total comprehensive income, net of taxes	$	97		$	109		$	167		$	213
Genco:
Net income (loss)	$	(4	)	$	(100	)	$	31		$	(62	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $-, $1, and $5, respectively		1			-			2			4
Total comprehensive income (loss), net of taxes	$	(3	)	$	(100	)	$	33		$	(58	)
Less: Net income attributable to noncontrolling interest, net of taxes		1			1			2			3
Total comprehensive income (loss) attributable to Genco	$	(4	)	$	(101	)	$	31		$	(61	)

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

Other Comprehensive Income

NOTE 11 - OTHER COMPREHENSIVE INCOME

Comprehensive income includes net income as reported on the statements of income and all other changes in common stockholders' equity, except those resulting from transactions with common stockholders. A reconciliation of net income to comprehensive income for the three and nine months ended September 30, 2011, and 2010 is shown below for Ameren, Ameren Illinois and Genco. Ameren Missouri's comprehensive income was composed only of its net income for the three and nine months ended September 30, 2011 and 2010.


	Three Months						Nine Months
	2011			2010			2011			2010
Ameren:^(a)
Net income (loss)	$	287		$	(164	)	$	500		$	97
Unrealized net gain (loss) on derivative hedging instruments, net of taxes (benefit) of $(2), $9, $(6), and $20, respectively		(2	)		14			(8	)		31
Reclassification adjustments for derivative (gain) loss included in net income, net of taxes (benefit) of $1, $8, $(1), and $20, respectively		(1	)		(14	)		2			(34	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $- $(2), and $6, respectively		(1	)		-			(2	)		6
Total comprehensive income (loss), net of taxes	$	283		$	(164	)	$	492		$	100
Less: Net income attributable to noncontrolling interests, net of taxes		2			3			6			10
Total comprehensive income (loss) attributable to Ameren Corporation, net of taxes	$	281		$	(167	)	$	486		$	90
Ameren Illinois:
Net income	$	98		$	110		$	170		$	215
Pension and other postretirement activity, net of income taxes (benefit) of $(1), $(1), $(2), and $(1), respectively		(1	)		(1	)		(3	)		(2	)
Total comprehensive income, net of taxes	$	97		$	109		$	167		$	213
Genco:
Net income (loss)	$	(4	)	$	(100	)	$	31		$	(62	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $-, $1, and $5, respectively		1			-			2			4
Total comprehensive income (loss), net of taxes	$	(3	)	$	(100	)	$	33		$	(58	)
Less: Net income attributable to noncontrolling interest, net of taxes		1			1			2			3
Total comprehensive income (loss) attributable to Genco	$	(4	)	$	(101	)	$	31		$	(61	)

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

Other Comprehensive Income

NOTE 11 - OTHER COMPREHENSIVE INCOME

Comprehensive income includes net income as reported on the statements of income and all other changes in common stockholders' equity, except those resulting from transactions with common stockholders. A reconciliation of net income to comprehensive income for the three and nine months ended September 30, 2011, and 2010 is shown below for Ameren, Ameren Illinois and Genco. Ameren Missouri's comprehensive income was composed only of its net income for the three and nine months ended September 30, 2011 and 2010.


	Three Months						Nine Months
	2011			2010			2011			2010
Ameren:^(a)
Net income (loss)	$	287		$	(164	)	$	500		$	97
Unrealized net gain (loss) on derivative hedging instruments, net of taxes (benefit) of $(2), $9, $(6), and $20, respectively		(2	)		14			(8	)		31
Reclassification adjustments for derivative (gain) loss included in net income, net of taxes (benefit) of $1, $8, $(1), and $20, respectively		(1	)		(14	)		2			(34	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $- $(2), and $6, respectively		(1	)		-			(2	)		6
Total comprehensive income (loss), net of taxes	$	283		$	(164	)	$	492		$	100
Less: Net income attributable to noncontrolling interests, net of taxes		2			3			6			10
Total comprehensive income (loss) attributable to Ameren Corporation, net of taxes	$	281		$	(167	)	$	486		$	90
Ameren Illinois:
Net income	$	98		$	110		$	170		$	215
Pension and other postretirement activity, net of income taxes (benefit) of $(1), $(1), $(2), and $(1), respectively		(1	)		(1	)		(3	)		(2	)
Total comprehensive income, net of taxes	$	97		$	109		$	167		$	213
Genco:
Net income (loss)	$	(4	)	$	(100	)	$	31		$	(62	)
Pension and other postretirement activity, net of income taxes (benefit) of $-, $-, $1, and $5, respectively		1			-			2			4
Total comprehensive income (loss), net of taxes	$	(3	)	$	(100	)	$	33		$	(58	)
Less: Net income attributable to noncontrolling interest, net of taxes		1			1			2			3
Total comprehensive income (loss) attributable to Genco	$	(4	)	$	(101	)	$	31		$	(61	)

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