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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Operating activities    
Net income $ 862,144 $ 528,707
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 317,908 302,566
Impairment charges 0 20,240
Noncash contribution of preferred stock, net of tax 0 12,600
Equity in net earnings from investments (116,070) (118,985)
Distributions received from unconsolidated affiliates 125,824 124,517
Deferred income taxes 264,509 186,584
Share-based compensation expense 23,963 19,688
Pension and postretirement benefit expense, net of contributions (2,902) 818
Allowance for equity funds used during construction (3,328) (75)
Gain on sale of assets (348) (904)
Changes in assets and liabilities:    
Accounts receivable 117,876 (33,224)
Natural gas and natural gas liquids in storage (91,170) (174,232)
Accounts payable (41,837) 82,174
Commodity imbalances, net 15,379 (4,004)
Risk-management assets and liabilities 66,966 34,534
Other assets and liabilities, net (22,464) (45,008)
Cash provided by operating activities 1,516,450 935,996
Investing activities    
Capital expenditures (less allowance for equity funds used during construction) (1,309,655) (330,431)
Cash paid for acquisition (195,000) 0
Contributions to unconsolidated affiliates (831) (87,653)
Distributions received from unconsolidated affiliates in excess of cumulative earnings 19,613 21,577
Proceeds from sale of assets 1,053 1,910
Cash used in investing activities (1,484,820) (394,597)
Financing activities    
Dividends paid (983,068) (543,445)
Distributions to noncontrolling interests (3,500) (275,060)
Borrowing (repayment) of short-term borrowings, net (494,673) (178,027)
Issuance of long-term debt, net of discounts 1,245,773 1,190,067
Debt financing costs (11,301) (11,340)
Repayment of long-term debt (930,738) (992,864)
Issuance of common stock 1,195,128 45,849
Other, net (1,980) (13,778)
Cash provided by (used in) financing activities 15,641 (778,598)
Change in cash and cash equivalents 47,271 (237,199)
Cash and cash equivalents at beginning of period 37,193 248,875
Cash and cash equivalents at end of period $ 84,464 $ 11,676