Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 99	$ 139
Accounts receivable - trade (less allowance for doubtful accounts)	397	415
Unbilled revenue	339	269
Miscellaneous accounts receivable	105	65
Inventories	527	521
Restricted cash	131	17
Current regulatory assets	353	109
Other current assets	165	118
Total current assets	2,116	1,653
Property, Plant, and Equipment, Net	28,020	26,807
Investments and Other Assets:
Nuclear decommissioning trust fund	1,070	982
Goodwill	411	411
Regulatory assets	1,272	1,100
Other assets	1,027	1,077
Total investments and other assets	3,780	3,570
TOTAL ASSETS	33,916	32,030
Current Liabilities:
Current maturities of long-term debt	8	8
Short-term debt	431	490
Accounts and wages payable	779	958
Taxes accrued	178	82
Interest accrued	129	114
Current regulatory liabilities	238	121
Other current liabilities	414	407
Total current liabilities	2,177	2,180
Long-term Debt, Net	12,492	11,078
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and tax credits, net	3,309	3,211
Regulatory liabilities	5,258	5,282
Asset retirement obligations	712	696
Pension and other postretirement benefits	39	37
Other deferred credits and liabilities	447	466
Total deferred credits and other liabilities	9,765	9,692
Commitments and Contingencies
Shareholders’ Equity:
Common Stock	3	3
Other paid-in capital, principally premium on common stock	6,436	6,179
Retained earnings	2,915	2,757
Accumulated other comprehensive loss	(1)	(1)
Total shareholders’ equity	9,353	8,938
Noncontrolling Interests	129	142
Total equity	9,482	9,080
TOTAL LIABILITIES AND EQUITY	33,916	32,030
Union Electric Company
Current Assets:
Cash and cash equivalents	0	136
Advances to money pool	92	139
Accounts receivable - trade (less allowance for doubtful accounts)	168	166
Accounts receivable – affiliates	49	57
Unbilled revenue	224	133
Miscellaneous accounts receivable	92	36
Inventories	395	386
Restricted cash	4	5
Current regulatory assets	148	60
Other current assets	106	79
Total current assets	1,274	1,192
Property, Plant, and Equipment, Net	14,690	13,879
Investments and Other Assets:
Nuclear decommissioning trust fund	1,070	982
Regulatory assets	430	347
Other assets	361	383
Total investments and other assets	1,861	1,712
TOTAL ASSETS	17,825	16,783
Current Liabilities:
Current maturities of long-term debt	8	8
Accounts and wages payable	403	501
Accounts payable – affiliates	85	46
Taxes accrued	137	42
Interest accrued	67	53
Current asset retirement obligations	59	60
Other current liabilities	161	123
Total current liabilities	920	833
Long-term Debt, Net	5,618	5,096
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and tax credits, net	1,789	1,742
Regulatory liabilities	3,138	3,110
Asset retirement obligations	707	691
Pension and other postretirement benefits	31	35
Other deferred credits and liabilities	71	66
Total deferred credits and other liabilities	5,736	5,644
Commitments and Contingencies
Shareholders’ Equity:
Common Stock	511	511
Other paid-in capital, principally premium on common stock	2,701	2,518
Preferred stock	80	80
Retained earnings	2,259	2,101
Total shareholders’ equity	5,551	5,210
TOTAL LIABILITIES AND EQUITY	17,825	16,783
Ameren Illinois Company
Current Assets:
Cash and cash equivalents	96	0
Advances to money pool	20	0
Accounts receivable - trade (less allowance for doubtful accounts)	212	234
Accounts receivable – affiliates	57	64
Unbilled revenue	115	136
Miscellaneous accounts receivable	4	12
Inventories	132	135
Restricted cash	122	6
Current regulatory assets	199	37
Other current assets	38	23
Total current assets	995	647
Property, Plant, and Equipment, Net	11,597	11,201
Investments and Other Assets:
Goodwill	411	411
Regulatory assets	822	742
Other assets	491	534
Total investments and other assets	1,724	1,687
TOTAL ASSETS	14,316	13,535
Current Liabilities:
Borrowings from money pool	0	19
Accounts and wages payable	314	363
Accounts payable – affiliates	62	51
Customer deposits	69	74
Current regulatory liabilities	197	88
Other current liabilities	205	221
Total current liabilities	847	816
Long-term Debt, Net	4,391	3,946
Deferred Credits and Other Liabilities:
Accumulated deferred income taxes and tax credits, net	1,463	1,367
Regulatory liabilities	2,006	2,063
Pension and other postretirement benefits	68	69
Environmental remediation	46	57
Other deferred credits and liabilities	237	251
Total deferred credits and other liabilities	3,820	3,807
Commitments and Contingencies
Shareholders’ Equity:
Common Stock	0	0
Other paid-in capital, principally premium on common stock	2,722	2,652
Preferred stock	49	62
Retained earnings	2,487	2,252
Total shareholders’ equity	5,258	4,966
TOTAL LIABILITIES AND EQUITY	$ 14,316	$ 13,535