Consolidated Balance Sheets (Unaudited) - USD ($)
$ in Millions
Jun. 30, 2018
Dec. 31, 2017
ASSETS    
Property, plant and equipment $ 22,361 $ 21,716
Accumulated depreciation (5,584) (5,470)
Property, plant and equipment, net 16,777 16,246
Current assets:    
Cash and cash equivalents 68 55
Restricted funds 27 27
Accounts receivable, net 324 272
Unbilled revenues 212 212
Materials and supplies 42 41
Other 160 113
Total current assets 833 720
Regulatory and other long-term assets:    
Regulatory assets 1,069 1,061
Goodwill 1,621 1,379
Intangible assets 101 9
Other 70 67
Total regulatory and other long-term assets 2,861 2,516
Total assets 20,471 19,482
Capitalization:    
Common stock ($0.01 par value, 500,000,000 shares authorized, 185,173,388 and 182,508,564 shares issued, respectively) 2 2
Paid-in-capital 6,637 6,432
Accumulated deficit (537) (723)
Accumulated other comprehensive loss (69) (79)
Treasury stock, at cost (4,683,156 and 4,064,010 shares, respectively) (297) (247)
Total common stockholders' equity 5,736 5,385
Long-term debt 6,345 6,490
Redeemable preferred stock at redemption value 7 8
Total long-term debt 6,352 6,498
Total capitalization 12,088 11,883
Current liabilities:    
Short-term debt 1,649 905
Current portion of long-term debt 364 322
Accounts payable 139 195
Accrued liabilities 530 630
Taxes accrued 48 33
Interest accrued 69 73
Other 152 167
Total current liabilities 2,951 2,325
Regulatory and other long-term liabilities:    
Advances for construction 263 271
Deferred income taxes, net 1,617 1,551
Deferred investment tax credits 22 22
Regulatory liabilities 1,713 1,664
Accrued pension expense 397 384
Accrued post-retirement benefit expense 38 40
Other 84 66
Total regulatory and other long-term liabilities 4,134 3,998
Contributions in aid of construction 1,298 1,276
Commitments and contingencies (See Note 11)
Total capitalization and liabilities $ 20,471 $ 19,482