CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 353	$ 147
Accounts receivable, net	737	860
Accrued unbilled revenues	639	755
Inventories	483	548
Regulatory assets	425	464
Derivative instruments	86	87
Prepaid taxes	41	79
Prepayments and other	175	154
Total current assets	2,939	3,094
Property, plant and equipment, net	37,651	36,944
Other assets
Nuclear decommissioning fund and other investments	2,573	2,317
Regulatory assets	3,145	3,326
Derivative instruments	23	34
Operating Lease, Right-of-Use Asset	1,763	0
Other	490	272
Total other assets	7,994	5,949
Total assets	48,584	45,987
Current liabilities
Current portion of long-term debt	553	406
Short-term debt	1,597	1,038
Accounts payable	1,057	1,237
Regulatory liabilities	442	436
Taxes accrued	342	450
Accrued interest	180	174
Dividends payable	209	195
Derivative instruments	66	61
Other	614	463
Total current liabilities	5,060	4,460
Deferred credits and other liabilities
Deferred income taxes	4,319	4,165
Deferred investment tax credits	51	54
Regulatory liabilities	5,139	5,187
Asset retirement obligations	2,647	2,568
Derivative instruments	121	129
Customer advances	198	199
Pension and employee benefit obligations	850	994
Noncurrent operating lease liabilities	1,647	0
Other	190	206
Total deferred credits and other liabilities	15,162	13,502
Commitments and contingencies
Capitalization
Long-term debt	15,996	15,803
Common stock — 1,000,000,000 shares authorized of $2.50 par value; 514,865,476 and 514,036,787 shares outstanding at June 30, 2019 and Dec. 31, 2018, respectively	1,287	1,285
Additional paid in capital	6,190	6,168
Retained earnings	5,024	4,893
Accumulated other comprehensive loss	(135)	(124)
Total common stockholders’ equity	12,366	12,222
Total liabilities and equity	$ 48,584	$ 45,987