Union Electric Co (UELMO) 10-Q Quarterly Report Thu Nov 05 2020

Document and Entity Information - shares	9 Months Ended
Sep. 30, 2020	Oct. 30, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	1-14756
Entity Registrant Name	Ameren Corporation
Entity Tax Identification Number	43-1723446
Entity Incorporation, State or Country Code	MO
Entity Address, Address Line One	1901 Chouteau Avenue
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63103
City Area Code	(314)
Local Phone Number	621-3222
Title of 12(b) Security	Common Stock, $0.01 par value per share
Trading Symbol(s)	AEE
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		247,206,978
Entity Central Index Key	0001002910
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Union Electric Company
Entity Information [Line Items]
Entity File Number	1-2967
Entity Registrant Name	Union Electric Company
Entity Tax Identification Number	43-0559760
Entity Incorporation, State or Country Code	MO
Entity Address, Address Line One	1901 Chouteau Avenue
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63103
City Area Code	(314)
Local Phone Number	621-3222
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		102,123,834
Entity Central Index Key	0000100826
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Ameren Illinois Company
Entity Information [Line Items]
Entity File Number	1-3672
Entity Registrant Name	Ameren Illinois Company
Entity Tax Identification Number	37-0211380
Entity Incorporation, State or Country Code	IL
Entity Address, Address Line One	10 Executive Drive
Entity Address, City or Town	Collinsville
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	62234
City Area Code	(618)
Local Phone Number	343-8150
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		25,452,373
Entity Central Index Key	0000018654
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

Document and Entity Information - shares

9 Months Ended

Sep. 30, 2020

Oct. 30, 2020

Entity Information [Line Items]

Document Type

10-Q

Document Quarterly Report

true

Document Period End Date

Sep. 30, 2020

Document Transition Report

false

Entity File Number

1-14756

Entity Registrant Name

Ameren Corporation

Entity Tax Identification Number

43-1723446

Entity Incorporation, State or Country Code

Entity Address, Address Line One

1901 Chouteau Avenue

Entity Address, City or Town

St. Louis

Entity Address, State or Province

Entity Address, Postal Zip Code

63103

City Area Code

(314)

Local Phone Number

621-3222

Title of 12(b) Security

Common Stock, $0.01 par value per share

Trading Symbol(s)

AEE

Security Exchange Name

NYSE

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Large Accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

Entity Shell Company

false

Entity Common Stock, Shares Outstanding

247,206,978

Entity Central Index Key

0001002910

Current Fiscal Year End Date

--12-31

Document Fiscal Year Focus

2020

Document Fiscal Period Focus

Amendment Flag

false

Union Electric Company

Entity Information [Line Items]

Entity File Number

1-2967

Entity Registrant Name

Union Electric Company

Entity Tax Identification Number

43-0559760

Entity Incorporation, State or Country Code

Entity Address, Address Line One

1901 Chouteau Avenue

Entity Address, City or Town

St. Louis

Entity Address, State or Province

Entity Address, Postal Zip Code

63103

City Area Code

(314)

Local Phone Number

621-3222

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Non-accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

Entity Shell Company

false

Entity Common Stock, Shares Outstanding

102,123,834

Entity Central Index Key

0000100826

Current Fiscal Year End Date

--12-31

Document Fiscal Year Focus

2020

Document Fiscal Period Focus

Amendment Flag

false

Ameren Illinois Company

Entity Information [Line Items]

Entity File Number

1-3672

Entity Registrant Name

Ameren Illinois Company

Entity Tax Identification Number

37-0211380

Entity Incorporation, State or Country Code

Entity Address, Address Line One

10 Executive Drive

Entity Address, City or Town

Collinsville

Entity Address, State or Province

Entity Address, Postal Zip Code

62234

City Area Code

(618)

Local Phone Number

343-8150

Entity Current Reporting Status

Yes

Entity Interactive Data Current

Yes

Entity Filer Category

Non-accelerated Filer

Entity Small Business

false

Entity Emerging Growth Company

false

Entity Shell Company

false

Entity Common Stock, Shares Outstanding

25,452,373

Entity Central Index Key

0000018654

Current Fiscal Year End Date

--12-31

Document Fiscal Year Focus

2020

Document Fiscal Period Focus

Amendment Flag

false

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Union Electric Co

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Union Electric Co (UELMO) SEC Filing 10-Q Quarterly report for the period ending Wednesday, September 30, 2020

Union Electric Co

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