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Consolidated 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 $ 4,899 $ 3,365 $ 2,366
Reconciliation of net income to net cash provided by operating activities:      
Loss from discontinued operations 0 265 177
Depreciation, depletion and amortization 3,147 2,859 2,554
Deferred income taxes (217) 7 1,871
Inventory valuation adjustments (79) 85 (24)
Non-cash compensation expense 113 105 99
Impairment losses 74 431 1,039
Impairment of investments in unconsolidated affiliates 0 0 313
Losses on extinguishments of debt 18 112 89
Distributions On Unvested Unit Awards 38 38 35
Proceeds from Equity Method Investment, Distribution 290 328 297
Other non-cash (182) (56) 239
Equity in earnings of unconsolidated affiliates (302) (344) (144)
Net change in operating assets and liabilities, net of effects of acquisitions and deconsolidations (518) 289 (192)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations 8,003 7,506 4,429
INVESTING ACTIVITIES:      
Cash received for sale of noncontrolling interest 93 0 0
Cash Acquired from Acquisition 0 461 0
Cash paid for acquisitions, net of cash received (7) (429) (303)
Capital expenditures, excluding allowance for equity funds used during construction (5,960) (7,407) (8,444)
Contributions in aid of construction costs 80 109 31
Contributions to unconsolidated affiliates (523) (26) (268)
Distributions from unconsolidated affiliates in excess of cumulative earnings 98 69 135
Proceeds from the sale of other assets 54 87 48
Other 18 61 (3)
Net Cash Provided by (Used in) Investing Activities, Continuing Operations (6,934) (7,075) (5,606)
FINANCING ACTIVITIES:      
Proceeds from borrowings 22,583 29,001 31,608
Repayments of long-term debt (20,101) (28,948) (31,268)
Cash received from affiliate notes 0 0 (255)
Proceeds from Issuance of Common Limited Partners Units 0 0 568
Subsidiary units issued for cash 780 1,402 3,235
Distributions to partners (3,054) (1,684) (1,010)
Distributions to noncontrolling interests (1,597) (3,117) (2,961)
Payments of Ordinary Dividends, Preferred Stock and Preference Stock 0 24 0
Redemption of preferred units 0 0 (53)
Debt issuance costs (117) (171) (131)
Capital contributions from noncontrolling interests 348 649 1,214
Units repurchased under buyback program (25) 0 0
Payments for Repurchase of Common Units by Subsidiary 0 24 0
Other, net (14) (166) 6
Net cash provided by (used in) financing activities (1,197) (3,082) 953
Cash Provided by (Used in) Operating Activities, Discontinued Operations 0 (484) 136
Cash Provided by (Used in) Investing Activities, Discontinued Operations 0 3,207 (38)
Increase (Decrease) in Assets Held-for-sale 0 11 (5)
Net increase in cash and cash equivalents of discontinued operations 0 2,734 93
Increase (decrease) in cash and cash equivalents (128) 83 (131)
Cash and cash equivalents, beginning of period 419 336 467
Cash and cash equivalents, end of period 291 419 336
Bakken Pipeline [Member]      
INVESTING ACTIVITIES:      
Proceeds from Divestiture of Interest in Joint Venture 0 0 2,000
Rover Pipeline LLC [Member]      
INVESTING ACTIVITIES:      
Proceeds from Divestiture of Interest in Joint Venture 0 0 1,478
SemGroup [Member]      
INVESTING ACTIVITIES:      
Cash paid for acquisitions, net of cash received 787 0 0
PennTex [Member]      
INVESTING ACTIVITIES:      
Cash paid for acquisitions, net of cash received $ 0 $ 0 $ 280