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CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Cash Generated from Operations        
Net income $ 61.0 $ 57.0 $ 155.0 $ 157.0
Depreciation and amortization 19.0 19.0 39.0 39.0
Amortization of debt issue costs reported as interest expense     1.0 1.0
Equity earnings from equity investments (Note 5) (29.0) (30.0) (84.0) (84.0)
Distributions received from operating activities of equity investments (Note 5)     115.0 112.0
Equity allowance for funds used during construction     (3.0) (1.0)
Change in operating working capital (Note 11)     6.0 4.0
Other     (1.0) 0.0
Cash Generated from Operations     228.0 228.0
Investing Activities        
Proceeds from return of investment     5.0 55.0
Capital expenditures     (87.0) (29.0)
Customer advances for construction     (1.0)  
Customer advances for construction       1.0
Investing Activities     (88.0) 22.0
Financing Activities        
Distributions paid to common units, including the General Partner (Note 10)     (95.0) (95.0)
Distributions paid to Class B units (Note 8)     (8.0) (13.0)
Distributions paid to non-controlling interests     (12.0) (15.0)
Long-term debt issued, net of discount (Note 7)     207.0 20.0
Long-term debt repaid (Note 7)     (100.0) (135.0)
Financing Activities     (8.0) (238.0)
Increase in cash and cash equivalents     132.0 12.0
Cash and cash equivalents, beginning of period     83.0 33.0
Cash and cash equivalents, end of period 215.0 45.0 215.0 45.0
Great Lakes        
Cash Generated from Operations        
Equity earnings from equity investments (Note 5) (9.0) (9.0) (29.0) (29.0)
Investing Activities        
Investments in equity investments     (5.0) (5.0)
Iroquois        
Cash Generated from Operations        
Equity earnings from equity investments (Note 5) (7.0) (7.0) (20.0) (20.0)
Distributions received from operating activities of equity investments (Note 5) 10.0 14.0 38.0 28.0
Investing Activities        
Proceeds from return of investment     5.0 5.0
Northern Border        
Cash Generated from Operations        
Equity earnings from equity investments (Note 5) $ (13.0) $ (14.0) (35.0) (35.0)
Investing Activities        
Proceeds from return of investment     $ 0.0 $ 50.0