Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 16	$ 16
Accounts receivable - trade (less allowance for doubtful accounts)	393	463
Unbilled revenue	278	295
Miscellaneous accounts receivable	63	79
Inventories	494	483
Current regulatory assets	69	134
Other current assets	118	63
Total current assets	1,431	1,533
Property, Plant and Equipment, Net	24,376	22,810
Investments and Other Assets:
Nuclear decommissioning trust fund	847	684
Goodwill	411	411
Regulatory assets	992	1,127
Other assets	876	650
Total investments and other assets	3,126	2,872
TOTAL ASSETS	28,933	27,215
Current Liabilities:
Current maturities of long-term debt	442	580
Short-term debt	440	597
Accounts and wages payable	874	817
Current regulatory liabilities	164	149
Other current liabilities	585	544
Total current liabilities	2,505	2,687
Long-term Debt, Net	8,915	7,859
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and investment tax credits, net	2,919	2,666
Regulatory liabilities	4,887	4,637
Asset retirement obligations	638	627
Pension and other postretirement benefits	401	558
Other deferred credits and liabilities	467	408
Total deferred credits and other liabilities	9,312	8,896
Commitments and Contingencies (Notes 2, 9, and 14)
Shareholders' Equity:
Common stock	2	2
Other paid-in capital, principally premium on common stock	5,694	5,627
Retained earnings	2,380	2,024
Accumulated other comprehensive loss	(17)	(22)
Total shareholders' equity	8,059	7,631
Noncontrolling Interests	142	142
Total equity	8,201	7,773
TOTAL LIABILITIES AND EQUITY	28,933	27,215
Union Electric Company
Current Assets:
Cash and cash equivalents	9	0
Accounts receivable - trade (less allowance for doubtful accounts)	164	223
Accounts receivable – affiliates	30	14
Unbilled revenue	139	155
Miscellaneous accounts receivable	33	42
Inventories	373	358
Current regulatory assets	8	14
Other current assets	66	40
Total current assets	814	832
Property, Plant and Equipment, Net	12,635	12,103
Investments and Other Assets:
Nuclear decommissioning trust fund	847	684
Regulatory assets	285	366
Other assets	356	306
Total investments and other assets	1,488	1,356
TOTAL ASSETS	14,937	14,291
Current Liabilities:
Current maturities of long-term debt	92	580
Short-term debt	234	55
Accounts and wages payable	465	428
Accounts payable – affiliates	52	69
Current regulatory liabilities	62	68
Other current liabilities	221	202
Total current liabilities	1,126	1,402
Long-term Debt, Net	4,098	3,418
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and investment tax credits, net	1,612	1,576
Regulatory liabilities	2,937	2,799
Asset retirement obligations	634	623
Pension and other postretirement benefits	141	228
Other deferred credits and liabilities	40	16
Total deferred credits and other liabilities	5,364	5,242
Commitments and Contingencies (Notes 2, 9, and 14)
Shareholders' Equity:
Common stock	511	511
Other paid-in capital, principally premium on common stock	2,027	1,903
Preferred stock	80	80
Retained earnings	1,731	1,735
Total shareholders' equity	4,349	4,229
TOTAL LIABILITIES AND EQUITY	14,937	14,291
Ameren Illinois Company
Current Assets:
Cash and cash equivalents	0	0
Accounts receivable - trade (less allowance for doubtful accounts)	215	224
Accounts receivable – affiliates	28	21
Unbilled revenue	139	140
Miscellaneous accounts receivable	25	40
Inventories	121	125
Current regulatory assets	57	110
Other current assets	29	16
Total current assets	614	676
Property, Plant and Equipment, Net	10,083	9,198
Investments and Other Assets:
Goodwill	411	411
Regulatory assets	694	759
Other assets	383	275
Total investments and other assets	1,488	1,445
TOTAL ASSETS	12,185	11,319
Current Liabilities:
Short-term debt	53	72
Accounts and wages payable	299	302
Accounts payable – affiliates	82	58
Customer deposits	77	76
Current environmental remediation	42	42
Current regulatory liabilities	84	62
Other current liabilities	207	184
Total current liabilities	844	796
Long-term Debt, Net	3,575	3,296
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and investment tax credits, net	1,224	1,119
Regulatory liabilities	1,849	1,741
Pension and other postretirement benefits	214	280
Environmental remediation	87	109
Other deferred credits and liabilities	260	204
Total deferred credits and other liabilities	3,634	3,453
Commitments and Contingencies (Notes 2, 9, and 14)
Shareholders' Equity:
Common stock	0	0
Other paid-in capital, principally premium on common stock	2,188	2,173
Preferred stock	62	62
Retained earnings	1,882	1,539
Total shareholders' equity	4,132	3,774
TOTAL LIABILITIES AND EQUITY	$ 12,185	$ 11,319