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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Property, Plant and Equipment |  |  |
Utility Plant |  | $ 22,780.8 | $ 21,026.6
Accumulated depreciation and amortization |  | (7,257.9) | (6,953.6)
Net utility plant |  | 15,522.9 | 14,073.0
Other property, at cost, less accumulated depreciation |  | 19.6 | 286.5
Net Property, Plant and Equipment |  | 15,542.5 | 14,359.5
Investments and Other Assets |  |  |
Unconsolidated affiliates |  | 2.1 | 5.5
Other investments |  | 204.0 | 204.1
Total Investments and Other Assets |  | 206.1 | 209.6
Current Assets |  |  |
Cash and cash equivalents |  | 112.8 | 29.0
Restricted cash |  | 8.3 | 9.4
Accounts receivable (less reserve of $21.1 and $18.3, respectively) |  | 1,058.5 | 898.9
Gas inventory |  | 286.8 | 285.1
Materials and supplies, at average cost |  | 101.0 | 105.9
Electric production fuel, at average cost |  | 34.7 | 80.1
Exchange gas receivable |  | 88.4 | 45.8
Regulatory assets |  | 235.4 | 176.3
Prepayments and other |  | 129.5 | 132.8
Total Current Assets |  | 2,055.4 | 1,763.3
Other Assets |  |  |
Regulatory assets |  | 2,002.1 | 1,624.9
Goodwill |  | 1,690.7 | 1,690.7
Intangible assets |  | 220.7 | 231.7
Deferred charges and other |  | 86.5 | 82.0
Total Other Assets |  | 4,000.0 | 3,629.3
Total Assets |  | 21,804.0 | 19,961.7
Common Stockholders' Equity |  |  |
Common stock - $0.01 par value, 400,000,000 shares authorized; 372,363,656 and 337,015,806 shares outstanding, respectively |  | 3.8 | 3.4
Preferred stock - $0.01 par value, 20,000,000 shares authorized; 420,000 shares outstanding |  | 880.0 | 0.0
Treasury stock |  | (99.9) | (95.9)
Additional paid-in capital |  | 6,403.5 | 5,529.1
Retained deficit |  | (1,399.3) | (1,073.1)
Accumulated other comprehensive loss | [1] | (37.2) | (43.4)
Total Common Stockholders' Equity |  | 5,750.9 | 4,320.1
Long-term debt, excluding amounts due within one year |  | 7,105.4 | 7,512.2
Total Capitalization |  | 12,856.3 | 11,832.3
Current Liabilities |  |  |
Current portion of long-term debt |  | 50.0 | 284.3
Short-term borrowings |  | 1,977.2 | 1,205.7
Accounts payable |  | 883.8 | 625.6
Customer deposits and credits |  | 238.9 | 262.6
Taxes accrued |  | 222.7 | 208.1
Interest accrued |  | 90.7 | 112.3
Risk management liabilities |  | 5.0 | 43.2
Exchange gas payable |  | 85.5 | 59.6
Regulatory liabilities |  | 140.9 | 58.7
Legal and environmental |  | 18.9 | 32.1
Accrued compensation and employee benefits |  | 149.7 | 195.4
Claims accrued |  | 114.7 | 12.5
Other accruals |  | 58.8 | 78.3
Total Current Liabilities |  | 4,036.8 | 3,178.4
Other Liabilities |  |  |
Risk management liabilities |  | 46.7 | 28.5
Deferred income taxes |  | 1,330.5 | 1,292.9
Deferred investment tax credits |  | 11.2 | 12.4
Accrued insurance liabilities |  | 84.4 | 80.1
Accrued liability for postretirement and postemployment benefits |  | 389.1 | 337.1
Regulatory liabilities |  | 2,519.1 | 2,736.9
Asset retirement obligations |  | 352.0 | 268.7
Other noncurrent liabilities |  | 177.9 | 194.4
Total Other Liabilities |  | 4,910.9 | 4,951.0
Commitments and Contingencies (Refer to Note 18, Other Commitments and Contingencies) |  | 0.0 | 0.0
Total Capitalization and Liabilities |  | $ 21,804.0 | $ 19,961.7
[1] | All amounts are net of tax. Amounts in parentheses indicate debits.

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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29,30) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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