Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 8	$ 16
Accounts receivable - trade (less allowance for doubtful accounts)	517	463
Unbilled revenue	238	295
Miscellaneous accounts and notes receivable	74	79
Inventories	402	483
Current regulatory assets	113	134
Other current assets	70	63
Total current assets	1,422	1,533
Property, Plant, and Equipment, Net	23,044	22,810
Investments and Other Assets:
Nuclear decommissioning trust fund	754	684
Goodwill	411	411
Regulatory Assets, Noncurrent	1,134	1,127
Other assets	744	650
Total investments and other assets	3,043	2,872
TOTAL ASSETS	27,509	27,215
Current Liabilities:
Current maturities of long-term debt	336	580
Short-term Debt	799	597
Accounts and wages payable	522	817
Taxes accrued	81	53
Interest accrued	81	93
Customer deposits	111	116
Current regulatory liabilities	161	149
Other current liabilities	301	282
Total current liabilities	2,392	2,687
Long-term Debt, Net	8,221	7,859
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes, net	2,666	2,623
Accumulated Deferred Investment Tax Credit	42	43
Regulatory Liability, Noncurrent	4,731	4,637
Asset retirement obligations	630	627
Pension and other postretirement benefits	558	558
Other deferred credits and liabilities	422	408
Total deferred credits and other liabilities	9,049	8,896
Commitments and Contingencies
Stockholders' Equity:
Common Stock	2	2
Other paid-in capital	5,625	5,627
Retained earnings	2,099	2,024
Accumulated other comprehensive loss	(21)	(22)
Stockholder's equity	7,705	7,631
Noncontrolling Interest	142	142
Total equity	7,847	7,773
TOTAL LIABILITIES AND EQUITY	27,509	27,215
Union Electric Company
Current Assets:
Cash and cash equivalents	0	0
Accounts receivable - trade (less allowance for doubtful accounts)	189	223
Accounts receivable - affiliates	20	14
Unbilled revenue	128	155
Miscellaneous accounts and notes receivable	40	42
Inventories	329	358
Current regulatory assets	13	14
Other current assets	32	26
Total current assets	751	832
Property, Plant, and Equipment, Net	12,159	12,103
Investments and Other Assets:
Nuclear decommissioning trust fund	754	684
Regulatory Assets, Noncurrent	351	366
Other assets	356	306
Total investments and other assets	1,461	1,356
TOTAL ASSETS	14,371	14,291
Current Liabilities:
Current maturities of long-term debt	336	580
Short-term Debt	55	55
Accounts and wages payable	224	428
Accounts payable - affiliates	69	69
Taxes accrued	62	27
Interest accrued	47	52
Current regulatory liabilities	64	68
Other current liabilities	128	123
Total current liabilities	985	1,402
Long-term Debt, Net	3,780	3,418
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes, net	1,536	1,534
Accumulated Deferred Investment Tax Credit	41	42
Regulatory Liability, Noncurrent	2,868	2,799
Asset retirement obligations	626	623
Pension and other postretirement benefits	227	228
Other deferred credits and liabilities	40	16
Total deferred credits and other liabilities	5,338	5,242
Commitments and Contingencies
Stockholders' Equity:
Common Stock	511	511
Other paid-in capital	1,903	1,903
Preferred stock	80	80
Retained earnings	1,774	1,735
Stockholder's equity	4,268	4,229
TOTAL LIABILITIES AND EQUITY	14,371	14,291
Ameren Illinois Company
Current Assets:
Cash and cash equivalents	0	0
Accounts receivable - trade (less allowance for doubtful accounts)	315	224
Accounts receivable - affiliates	18	21
Unbilled revenue	110	140
Miscellaneous accounts and notes receivable	34	40
Inventories	73	125
Current regulatory assets	92	110
Other current assets	15	16
Total current assets	657	676
Property, Plant, and Equipment, Net	9,347	9,198
Investments and Other Assets:
Goodwill	411	411
Regulatory Assets, Noncurrent	776	759
Other assets	303	275
Total investments and other assets	1,490	1,445
TOTAL ASSETS	11,494	11,319
Current Liabilities:
Short-term Debt	126	72
Accounts and wages payable	242	302
Accounts payable - affiliates	63	58
Taxes accrued	19	23
Interest accrued	27	31
Customer deposits	73	76
Current environmental remediation	45	42
Current regulatory liabilities	79	62
Other current liabilities	129	130
Total current liabilities	803	796
Long-term Debt, Net	3,296	3,296
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes, net	1,151	1,119
Regulatory Liability, Noncurrent	1,765	1,741
Pension and other postretirement benefits	281	280
Environmental remediation	101	109
Other deferred credits and liabilities	203	204
Total deferred credits and other liabilities	3,501	3,453
Commitments and Contingencies
Stockholders' Equity:
Common Stock	0	0
Other paid-in capital	2,173	2,173
Preferred stock	62	62
Retained earnings	1,659	1,539
Stockholder's equity	3,894	3,774
TOTAL LIABILITIES AND EQUITY	$ 11,494	$ 11,319