CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current Assets:
Cash and cash equivalents	$ 220	$ 241
Investment in marketable securities	678	822
Accounts receivable, less bad debt reserve	711	702
Accrued unbilled revenues, less bad debt reserve	320	469
Natural gas inventory	97	209
Materials and supplies	278	263
Taxes receivable	93	106
Current assets held for sale	1,647	1,002
Prepaid expenses and other current assets	120	123
Total current assets	4,164	3,937
Property, Plant and Equipment:
Property, plant and equipment	30,830	30,324
Less: accumulated depreciation and amortization	9,852	9,700
Property, plant and equipment, net	20,978	20,624
Other Assets:
Goodwill	4,697	4,882
Regulatory assets	2,120	2,117
Investment in unconsolidated affiliates	850	2,408
Preferred units – unconsolidated affiliate	363	363
Total non-current assets held for sale	0	962
Other	223	236
Total other assets	8,253	10,968
Total Assets	33,395	35,529
Current Liabilities:
Current portion of VIE Securitization Bonds long-term debt	204	231
Indexed debt, net	18	19
Current portion of other long-term debt	1,204	618
Indexed debt securities derivative	758	893
Accounts payable	739	884
Taxes accrued	177	239
Interest accrued	126	158
Customer deposits	124	124
Non-trading derivative liabilities	9	7
Current liabilities held for sale	383	455
Other	300	350
Total current liabilities	4,042	3,978
Other Liabilities:
Deferred income taxes, net	3,562	3,928
Non-trading derivative liabilities	14	15
Benefit obligations	746	750
Regulatory liabilities	3,480	3,474
Total non-current liabilities held for sale	0	43
Other	751	738
Total other liabilities	8,553	8,948
Long-term Debt:
VIE Securitization Bonds, net	710	746
Other long-term debt, net	13,120	13,498
Total long-term debt, net	13,830	14,244
Commitments and Contingencies (Note 14)
Shareholders’ Equity:
Cumulative preferred stock, $0.01 par value, 20,000,000 shares authorized
Common stock	5	5
Additional paid-in capital	6,086	6,080
Retained earnings (accumulated deficit)	(761)	632
Accumulated other comprehensive income (loss)	(100)	(98)
Total shareholders’ equity	6,970	8,359
Total Liabilities and Shareholders’ Equity	33,395	35,529
Houston Electric [Member]
Current Assets:
Cash and cash equivalents	196	216
Accounts and notes receivable, less bad debt reserve	244	238
Accounts and notes receivable–affiliated companies	11	523
Accrued unbilled revenues, less bad debt reserve	92	117
Materials and supplies	157	147
Prepaid expenses and other current assets	36	49
Total current assets	736	1,290
Property, Plant and Equipment:
Property, plant and equipment	13,058	12,829
Less: accumulated depreciation and amortization	3,844	3,797
Property, plant and equipment, net	9,214	9,032
Other Assets:
Regulatory assets	891	915
Other	29	25
Total other assets	920	940
Total Assets	10,870	11,262
Current Liabilities:
Current portion of VIE Securitization Bonds long-term debt	204	231
Accounts payable	259	268
Accounts and notes payable–affiliated companies	175	76
Taxes accrued	61	123
Interest accrued	51	69
Other	78	63
Total current liabilities	828	830
Other Liabilities:
Deferred income taxes, net	1,036	1,030
Benefit obligations	72	75
Regulatory liabilities	1,271	1,288
Other	80	69
Total other liabilities	2,459	2,462
Long-term Debt:
VIE Securitization Bonds, net	710	746
Other long-term debt, net	3,974	3,973
Total long-term debt, net	4,684	4,719
Shareholders’ Equity:
Common stock	0	0
Additional paid-in capital	2,486	2,486
Retained earnings (accumulated deficit)	428	780
Accumulated other comprehensive income (loss)	(15)	(15)
Total shareholders’ equity	2,899	3,251
Total Liabilities and Shareholders’ Equity	10,870	11,262
CERC Corp [Member]
Current Assets:
Cash and cash equivalents	1	2
Accounts receivable, less bad debt reserve	324	322
Accounts and notes receivable–affiliated companies	11	10
Accrued unbilled revenues, less bad debt reserve	140	249
Natural gas inventory	30	135
Materials and supplies	74	71
Current assets held for sale	675	691
Prepaid expenses and other current assets	8	9
Total current assets	1,263	1,489
Property, Plant and Equipment:
Property, plant and equipment	8,210	8,079
Less: accumulated depreciation and amortization	2,312	2,270
Property, plant and equipment, net	5,898	5,809
Other Assets:
Goodwill	757	757
Regulatory assets	192	191
Total non-current assets held for sale	0	213
Other	40	53
Total other assets	989	1,214
Total Assets	8,150	8,512
Current Liabilities:
Current portion of other long-term debt	593	0
Accounts payable	235	333
Accounts and notes payable–affiliated companies	48	47
Taxes accrued	80	84
Interest accrued	31	38
Customer deposits	75	74
Current liabilities held for sale	275	368
Other	134	167
Total current liabilities	1,471	1,111
Other Liabilities:
Deferred income taxes, net	498	470
Benefit obligations	80	80
Regulatory liabilities	1,235	1,219
Total non-current liabilities held for sale	0	27
Other	411	418
Total other liabilities	2,224	2,214
Long-term Debt:
Total long-term debt, net	1,784	2,546
Shareholders’ Equity:
Common stock	0	0
Additional paid-in capital	2,116	2,116
Retained earnings (accumulated deficit)	545	515
Accumulated other comprehensive income (loss)	10	10
Total shareholders’ equity	2,671	2,641
Total Liabilities and Shareholders’ Equity	8,150	8,512
Series A Preferred Stock [Member]
Shareholders’ Equity:
Preferred Stock, $0.01 par value	790	790
Series B Preferred Stock [Member]
Shareholders’ Equity:
Preferred Stock, $0.01 par value	$ 950	$ 950