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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Current assets |  |
Cash and cash equivalents | $ 885 | $ 248
Accounts receivable, net | 899 | 837
Accrued unbilled revenues | 586 | 713
Inventories | 512 | 544
Regulatory assets | 576 | 488
Derivative instruments | 69 | 55
Prepaid taxes | 78 | 43
Prepayments and other | 232 | 185
Total current assets | 3,837 | 3,113
Property, plant and equipment, net | 42,227 | 39,483
Other assets |  |
Nuclear decommissioning fund and other investments | 2,813 | 2,731
Regulatory assets | 2,918 | 2,935
Derivative instruments | 31 | 22
Operating lease right-of-use assets | 1,534 | 1,672
Other | 348 | 492
Total other assets | 7,644 | 7,852
Total assets | 53,708 | 50,448
Current liabilities |  |
Current portion of long-term debt | 401 | 702
Short-term debt | 500 | 595
Accounts payable | 1,602 | 1,294
Regulatory liabilities | 302 | 407
Taxes accrued | 504 | 466
Accrued interest | 186 | 192
Dividends payable | 226 | 212
Derivative instruments | 48 | 38
Operating lease liabilities | 208 | 194
Other | 416 | 468
Total current liabilities | 4,393 | 4,568
Deferred credits and other liabilities |  |
Deferred income taxes | 4,696 | 4,509
Deferred investment tax credits | 46 | 49
Regulatory liabilities | 5,311 | 5,077
Asset retirement obligations | 2,942 | 2,701
Derivative instruments | 158 | 175
Customer advances | 201 | 203
Pension and employee benefit obligations | 651 | 785
Operating lease liabilities | 1,395 | 1,549
Other | 178 | 186
Total deferred credits and other liabilities | 15,578 | 15,234
Commitments and contingencies |  |
Capitalization |  |
Long-term debt | 19,960 | 17,407
Common stock — 1,000,000,000 shares authorized of $2.50 par value; 525,452,824 and 524,539,000 shares outstanding at Sept. 30, 2020 and Dec. 31, 2019, respectively | $ 1,314 | $ 1,311
Common Stock, Shares Authorized | 1,000,000,000 | 1,000,000,000
Common Stock, Par or Stated Value Per Share | $ 2.50 | $ 2.50
Common Stock, Shares, Outstanding | 525,452,824 | 524,539,000
Additional paid in capital | $ 6,694 | $ 6,656
Retained earnings | 5,912 | 5,413
Accumulated other comprehensive loss | (143) | (141)
Total common stockholders’ equity | 13,777 | 13,239
Total liabilities and equity | $ 53,708 | $ 50,448

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