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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 150.1 $ 121.0
Adjustments to reconcile net income to net cash provided from operating activities    
Depreciation and amortization 135.5 167.6
Deferred income taxes and investment tax credits, net 60.3 50.7
Equity in earnings of unconsolidated affiliates (87.2) (18.5)
Distributions from unconsolidated affiliates 76.5 0
Allowance for equity funds used during construction (1.9) (2.7)
Gain on disposition and abandonment of assets (0.2) (8.7)
Stock-based compensation (7.0) (6.6)
Regulatory assets (0.5) 3.7
Regulatory liabilities (5.4) (9.8)
Other assets (27.6) (0.6)
Other liabilities 19.5 (24.2)
Change in certain current assets and liabilities    
Accounts receivable, net (8.0) (41.4)
Accounts receivable - unconsolidated affiliates 5.0 0
Accrued unbilled revenues (23.6) (25.8)
Income taxes receivable 2.5 (3.5)
Fuel, materials and supplies inventories 22.0 (20.0)
Fuel clause under recoveries (55.9) (1.7)
Other current assets (1.0) (7.4)
Accounts payable (61.0) (3.9)
Accounts payable - unconsolidated affiliates 0 10.5
Fuel clause over recoveries (0.4) (87.4)
Other current liabilities (9.9) (11.4)
Net Cash Provided from Operating Activities 181.8 79.9
CASH FLOWS FROM INVESTING ACTIVITIES    
Capital expenditures (less allowance for equity funds used during construction) (297.6) (565.0)
Investment in unconsolidated affiliates 0 (2.7)
Proceeds from sale of assets 0.6 35.9
Net Cash Used in Investing Activities (297.0) (531.8)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from long-term debt 246.5 247.5
Issuance of common stock 6.7 6.8
Changes in advances with unconsolidated affiliates 0 126.2
Contributions from noncontrolling interest partners 0 107.0
Distributions to noncontrolling interest partners 0 (2.5)
Payment of long-term debt (0.1) (0.1)
(Decrease) increase in short-term debt (53.0) 47.8
Dividends paid on common stock (89.5) (82.6)
Net Cash Provided from Financing Activities 110.6 450.1
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (4.6) (1.8)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD 6.8 1.8
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 2.2 $ 0