Long-Term Debt And Equity Financings (Tables)

12 Months Ended

Dec. 31, 2015

The following table presents long-term debt outstanding, including maturities due within one year, for the Ameren Companies as of December 31, 2015 and 2014:



	2015			2014
Ameren (Parent):
2.70% Senior unsecured notes due 2020	$	350		$	—
3.65% Senior unsecured notes due 2026	350			—
Total long-term debt, gross	700			—
Less: Unamortized debt issuance costs^(a)	(6		)	—
Long-term debt, net	$	694		$	—
Ameren Missouri:
Senior secured notes:^(b)
4.75% Senior secured notes due 2015	—			114
5.40% Senior secured notes due 2016	260			260
6.40% Senior secured notes due 2017	425			425
6.00% Senior secured notes due 2018^(c)	179			179
5.10% Senior secured notes due 2018	199			199
6.70% Senior secured notes due 2019^(c)	329			329
5.10% Senior secured notes due 2019	244			244
5.00% Senior secured notes due 2020	85			85
3.50% Senior secured notes due 2024	350			350
5.50% Senior secured notes due 2034	184			184
5.30% Senior secured notes due 2037	300			300
8.45% Senior secured notes due 2039^(c)	350			350
3.90% Senior secured notes due 2042^(c)	485			485
3.65% Senior secured notes due 2045	250			—
Environmental improvement and pollution control revenue bonds:
1992 Series due 2022^(d)(e)	47			47
1993 5.45% Series due 2028^(f)	(f)			(f)
1998 Series A due 2033^(d)(e)	60			60
1998 Series B due 2033^(d)(e)	50			50
1998 Series C due 2033^(d)(e)	50			50
Capital lease obligations:
City of Bowling Green capital lease (Peno Creek CT) due 2022	48			54
Audrain County capital lease (Audrain County CT) due 2023	240			240
Total long-term debt, gross	4,135			4,005
Less: Unamortized discount and premium	(6		)	(6		)
Less: Unamortized debt issuance costs^(a)	(19		)	(18		)
Less: Maturities due within one year	(266		)	(120		)
Long-term debt, net	$	3,844		$	3,861



	2015			2014
Ameren Illinois:
Senior secured notes:
6.20% Senior secured notes due 2016^(g)	$	54		$	54
6.25% Senior secured notes due 2016^(h)	75			75
6.125% Senior secured notes due 2017^(h)(i)	250			250
6.25% Senior secured notes due 2018^(h)(i)	144			144
9.75% Senior secured notes due 2018^(h)(i)	313			313
2.70% Senior secured notes due 2022^(h)(i)	400			400
3.25% Senior secured notes due 2025^(h)	300			300
6.125% Senior secured notes due 2028^(h)	60			60
6.70% Senior secured notes due 2036^(h)	61			61
6.70% Senior secured notes due 2036^(g)	42			42
4.80% Senior secured notes due 2043^(h)	280			280
4.30% Senior secured notes due 2044^(h)	250			250
4.15% Senior secured notes due 2046^(h)	250			—
Environmental improvement and pollution control revenue bonds:
5.90% Series 1993 due 2023^(j)	(j)			(j)
5.70% 1994A Series due 2024^(k)	(k)			(k)
1993 Series B-1 due 2028^(e)(l)	17			17
Total long-term debt, gross	2,496			2,246
Less: Unamortized discount and premium	(7		)	(5		)
Less: Unamortized debt issuance costs^(a)	(18		)	(17		)
Less: Maturities due within one year	(129		)	—
Long-term debt, net	$	2,342		$	2,224
Ameren consolidated long-term debt, net	$	6,880		$	6,085


(a)	Reflects the adoption of the new authoritative accounting guidance for the presentation of debt issuance costs. See Note 1 – Summary of Significant Accounting Policies for additional information.

(b)

These notes are collaterally secured by first mortgage bonds issued by Ameren Missouri under the Ameren Missouri mortgage indenture. The notes have a fall-away lien provision and will remain secured only as long as any first mortgage bonds issued under the Ameren Missouri mortgage indenture remain outstanding. Redemption, purchase, or maturity of all first mortgage bonds, including first mortgage bonds currently outstanding and any that may be issued in the future, would result in a release of the first mortgage bonds currently securing these notes, at which time these notes would become unsecured obligations. Considering the Ameren Missouri senior secured notes currently outstanding, we do not expect the first mortgage bond lien protection associated with these notes to fall away until 2042.

(c)

Ameren Missouri has agreed that so long as any of the 3.90% senior secured notes due 2042 are outstanding, Ameren Missouri will not permit a release date to occur, and so long as any of the 6.70% senior secured notes due 2019, 6.00% senior secured notes due 2018 and 8.45% senior secured notes due 2039 are outstanding, Ameren Missouri will not optionally redeem, purchase, or otherwise retire in full the outstanding first mortgage bonds not subject to release provisions.


(d)	These bonds are collaterally secured by first mortgage bonds issued by Ameren Missouri under the Ameren Missouri mortgage indenture and have a fall-away lien provision similar to that of Ameren Missouri's senior secured notes. The bonds are also backed by an insurance guarantee policy.


(e)	The interest rates, and the periods during which such rates apply, vary depending on our selection of defined rate modes. Maximum interest rates could reach 18% depending on the series of bonds. The bonds are callable at 100% of par value. The average interest rates for 2015 and 2014 were as follows:



	2015	2014
Ameren Missouri 1992 Series due 2022	0.06%	0.10%
Ameren Missouri 1998 Series A due 2033	0.24%	0.26%
Ameren Missouri 1998 Series B due 2033	0.24%	0.27%
Ameren Missouri 1998 Series C due 2033	0.24%	0.26%
Ameren Illinois 1993 Series B-1 due 2028	0.49%	0.21%


(f)	These bonds are first mortgage bonds issued by Ameren Missouri under the Ameren Missouri mortgage bond indenture and are secured by substantially all Ameren Missouri property and franchises. The bonds are callable at 100% of par value. Less than $1 million principal amount of the bonds remain outstanding.


(g)	These notes are collaterally secured by first mortgage bonds issued by Ameren Illinois under the CILCO mortgage indenture. The notes have a fall-away lien provision, and Ameren Illinois could cause these notes to become unsecured at any time by redeeming the pollution control bonds 5.90% Series 1993 due 2023 (of which less than $1 million remains outstanding).

(h)

These notes are collaterally secured by mortgage bonds issued by Ameren Illinois under the Ameren Illinois mortgage indenture. They are secured by substantially all property of the former IP and CIPS. The notes have a fall-away lien provision and will remain secured only as long as any series of first mortgage bonds issued under the Ameren Illinois mortgage indenture remain outstanding. Redemption, purchase, or maturity of all mortgage bonds, including first mortgage bonds currently outstanding and any that may be issued in the future, would result in a release of the mortgage bonds currently securing these notes, at which time these notes would become unsecured obligations. Considering the Ameren Illinois senior secured notes currently outstanding, we do not expect the mortgage bond lien protection associated with these notes to fall away until 2024.

(i)

Ameren Illinois has agreed that so long as any of the 2.70% senior secured notes due 2022 are outstanding, Ameren Illinois will not permit a release date to occur, and so long as any of the 9.75% senior secured notes due 2018, 6.25% senior secured notes due 2018 and 6.125% senior secured notes due 2017 are outstanding, Ameren Illinois will not optionally redeem, purchase or otherwise retire in full the outstanding first mortgage bonds not subject to release provisions; therefore, a release date will not occur so long as any of these notes remain outstanding.


(j)	These bonds are first mortgage bonds issued by Ameren Illinois under the CILCO mortgage indenture. They are secured by substantially all property of the former CILCO. The bonds are callable at 100% of par value. Less than $1 million principal amount of the bonds remain outstanding.


(k)	These bonds are mortgage bonds issued by Ameren Illinois under the Ameren Illinois mortgage indenture. They are secured by substantially all property of the former IP and CIPS. The bonds are callable at 100% of par value. The bonds are also backed by an insurance guarantee policy. Less than $1 million principal amount of the bonds remains outstanding.


(l)	The bonds are callable at 100% of par value.

Schedule Of Maturities Of Long-Term Debt

The following table presents the aggregate maturities of long-term debt, including current maturities, for the Ameren Companies at December 31, 2015:



	Ameren (parent)^(a)		Ameren Missouri^(a)		Ameren Illinois^(a)		Ameren Consolidated
2016	$	—	$	266	$	129	$	395
2017	—		431		250		681
2018	—		383		457		840
2019	—		581		—		581
2020	350		92		—		442
Thereafter	350		2,382		1,660		4,392
Total	$	700	$	4,135	$	2,496	$	7,331


(a)	Excludes unamortized discount and premium and debt issuance costs of $6 million, $25 million, and $25 million at Ameren (parent), Ameren Missouri, and Ameren Illinois, respectively.

Schedule Of Outstanding Preferred Stock

The following table presents the outstanding preferred stock of Ameren Missouri and Ameren Illinois, which is redeemable, at the option of the issuer, at the prices shown below as of December 31, 2015 and 2014:



		Redemption Price(per share)			2015		2014
Ameren Missouri:
Without par value and stated value of $100 per share, 25 million shares authorized
$3.50 Series	130,000 shares	$	110.00		$	13	$	13
$3.70 Series	40,000 shares	104.75			4		4
$4.00 Series	150,000 shares	105.625			15		15
$4.30 Series	40,000 shares	105.00			4		4
$4.50 Series	213,595 shares	110.00		^(a)	21		21
$4.56 Series	200,000 shares	102.47			20		20
$4.75 Series	20,000 shares	102.176			2		2
$5.50 Series A	14,000 shares	110.00			1		1
Total					$	80	$	80
Ameren Illinois:
With par value of $100 per share, 2 million shares authorized
4.00% Series	144,275 shares	$	101.00		$	14	$	14
4.08% Series	45,224 shares	103.00			5		5
4.20% Series	23,655 shares	104.00			2		2
4.25% Series	50,000 shares	102.00			5		5
4.26% Series	16,621 shares	103.00			2		2
4.42% Series	16,190 shares	103.00			2		2
4.70% Series	18,429 shares	103.00			2		2
4.90% Series	73,825 shares	102.00			7		7
4.92% Series	49,289 shares	103.50			5		5
5.16% Series	50,000 shares	102.00			5		5
6.625% Series	124,274 shares	100.00			12		12
7.75% Series	4,542 shares	100.00			1		1
Total					$	62	$	62
Total Ameren					$	142	$	142


(a)	In the event of voluntary liquidation, $105.50.

Schedule of Required and Actual Debt Ratios

The following table summarizes the required and actual interest coverage ratios for interest charges, dividend coverage ratios, and bonds and preferred stock issuable as of December 31, 2015, at an assumed interest rate of 5% and dividend rate of 6%.



	Required Interest Coverage Ratio^(a)	Actual Interest Coverage Ratio	Bonds Issuable^(b)			Required Dividend Coverage Ratio^(c)	Actual Dividend Coverage Ratio	Preferred Stock Issuable
Ameren Missouri	>2.0	3.8	$	3,385		>2.5	104.0	$	2,315
Ameren Illinois	>2.0	6.3	3,566		^(d)	>1.5	2.6	203		^(e)


(a)	Coverage required on the annual interest charges on first mortgage bonds outstanding and to be issued. Coverage is not required in certain cases when additional first mortgage bonds are issued on the basis of retired bonds.


(b)	Amount of bonds issuable based either on required coverage ratios or unfunded property additions, whichever is more restrictive. The amounts shown also include bonds issuable based on retired bond capacity of $946 million and $204 million at Ameren Missouri and Ameren Illinois, respectively.


(c)	Coverage required on the annual dividend on preferred stock outstanding and to be issued, as required in the respective company’s articles of incorporation.


(d)	Amount of bonds issuable by Ameren Illinois based on unfunded property additions and retired bonds solely under the former IP mortgage indenture. The amount of bonds issuable by Ameren Illinois is also subject to the lien restrictions contained in the Illinois Credit Agreement.


(e)	Preferred stock issuable is restricted by the amount of preferred stock that is currently authorized by Ameren Illinois' articles of incorporation.

Ameren Illinois Company

Debt Instrument [Line Items]

Debt Redemption [Table Text Block]

In January 2014, Ameren Illinois redeemed the following environmental improvement and pollution control revenue bonds at par value plus accrued interest:



Senior Secured Notes	Principal Amount
5.90% Series 1993 due 2023^(a)	$	32
5.70% 1994A Series due 2024^(a)	36
1993 Series C-1 5.95% due 2026	35
1993 Series C-2 5.70% due 2026	8
5.40% 1998A Series due 2028	19
5.40% 1998B Series due 2028	33
Total amount redeemed	$	163


(a)	Less than $1 million principal amount of the bonds remains outstanding after redemption.

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

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