CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current assets
Cash, cash equivalents and restricted cash at beginning of period	$ 189	$ 28
Accounts receivable, net	379	342
Accounts receivable from affiliates	22	8
Accrued unbilled revenues	232	298
Inventories	158	189
Regulatory assets	142	121
Derivative instruments	23	21
Prepayments and other	85	82
Total current assets	1,230	1,089
Property, plant and equipment, net	17,616	17,470
Other assets
Regulatory assets	1,774	1,059
Derivative instruments	22	16
Operating lease right-of-use assets	476	500
Other	232	231
Total other assets	2,504	1,806
Total assets	21,350	20,365
Current liabilities
Borrowings under utility money pool arrangement	0	57
Short-term debt	0	136
Accounts payable	398	452
Accounts payable to affiliates	48	58
Regulatory liabilities	237	100
Taxes accrued	297	251
Accrued interest	34	61
Dividends payable to parent	115	105
Derivative instruments	29	27
Operating lease liabilities	100	97
Other	81	84
Total current liabilities	1,339	1,428
Deferred credits and other liabilities
Deferred income taxes	1,914	1,897
Regulatory liabilities	2,377	2,337
Asset retirement obligations	403	399
Derivative instruments	50	51
Customer advances	165	168
Pension and employee benefit obligations	114	161
Operating lease liabilities	405	432
Other	175	176
Total deferred credits and other liabilities	5,603	5,621
Commitments and contingencies
Capitalization
Long-term debt	$ 6,463	$ 5,724
Common Stock, Shares Authorized	100	100
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares, Outstanding	100	100
Common stock — 100 shares authorized of $0.01 par value; 100 shares outstanding at March 31, 2021 and Dec. 31, 2020, respectively	$ 0	$ 0
Additional paid in capital	6,070	5,770
Retained earnings	1,898	1,846
Accumulated other comprehensive loss	(23)	(24)
Total common stockholder's equity	7,945	7,592
Total liabilities and stockholder's equity	$ 21,350	$ 20,365