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STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income $ 350.2 $ 328.0 $ 305.5
Adjustments to reconcile net income to net cash provided from operating activities:      
Depreciation and amortization 355.0 321.6 280.9
Deferred income taxes and investment tax credits, net 20.4 56.6 119.8
Allowance for equity funds used during construction (4.5) (23.8) (39.7)
Stock-based compensation expense 4.9 4.6 3.1
Regulatory assets (47.1) (10.8) 3.7
Regulatory liabilities (45.6) (16.5) (3.7)
Other assets 3.8 1.9 1.6
Other liabilities 8.4 0.0 (59.9)
Change in certain current assets and liabilities:      
Accounts receivable and accrued unbilled revenues, net 17.0 19.5 (22.2)
Fuel, materials and supplies inventories 4.2 27.3 (5.0)
Fuel recoveries (33.0) (3.4) 53.0
Other current assets 5.9 23.1 29.7
Accounts payable (30.0) 19.0 22.5
Income taxes payable - parent (0.7) (15.6) 92.0
Other current liabilities (35.1) 72.5 (65.6)
Net Cash Provided from Operating Activities 573.8 804.0 715.7
CASH FLOWS FROM INVESTING ACTIVITIES      
Capital expenditures (less allowance for equity funds used during construction) (635.5) (573.6) (824.1)
Proceeds from sale of assets 0.0 0.1 0.7
Net cash used in investing activities (635.5) (573.5) (823.4)
CASH FLOWS FROM FINANCING ACTIVITIES      
Proceeds from long-term debt 296.5 396.0 592.1
Changes in advances with parent 15.3 (191.4) (189.3)
Payment of long-term debt (250.1) (250.1) (125.1)
Dividends paid on common stock 0.0 (185.0) (170.0)
Net cash provided from (used in) financing activities 61.7 (230.5) 107.7
NET CHANGE IN CASH AND CASH EQUIVALENTS 0.0 0.0 0.0
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 0.0 0.0 0.0
CASH AND CASH EQUIVALENTS AT END OF YEAR $ 0.0 $ 0.0 $ 0.0