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Consolidated Statements Of Cash Flows - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
OPERATING ACTIVITIES    
Net income $ 1,211 $ 801
Reconciliation of net income to net cash provided by operating activities:    
Impairment of investment in an unconsolidated affiliate 0 308
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest 264 (24)
Depreciation, depletion and amortization 1,840 1,596
Deferred income taxes (120) (139)
Unit-based compensation expense 76 46
Losses on extinguishments of debt (25) 0
Inventory valuation adjustments (38) (203)
Equity in earnings of unconsolidated affiliates (228) (205)
Distributions from unconsolidated affiliates 211 190
Other (134) (197)
Net change in operating assets and liabilities, net of effects of acquisition 222 48
Net cash provided by operating activities 3,304 2,221
INVESTING ACTIVITIES    
Cash received from Bakken Pipeline Transaction 2,000 0
Cash paid for acquisition of a noncontrolling interest (280) 0
Cash paid for acquisitions, net of cash received (293) (330)
Capital expenditures, excluding allowance for equity funds used during construction (6,102) (5,877)
Contributions to unconsolidated affiliate 230 47
Distributions from unconsolidated affiliates in excess of cumulative earnings 115 112
Other 30 58
Net cash used in investing activities (4,760) (6,084)
FINANCING ACTIVITIES    
Proceeds from borrowings 23,988 18,288
Repayments of long-term debt (22,586) (13,955)
Proceeds from Related Party Debt 0 1,606
Repayments of Related Party Debt (255) (1,607)
Subsidiary units issued for cash 1,635 2,097
Proceeds from Issuance of Common Limited Partners Units 568 0
Distributions to partners (752) (780)
Distributions to noncontrolling interest (2,156) (2,027)
Capital contributions received from noncontrolling interest 919 187
Other (58) 110
Net cash provided by financing activities 1,303 3,919
Cash Provided by (Used in) Operating Activities, Discontinued Operations 245 168
Cash Provided by (Used in) Investing Activities, Discontinued Operations (82) (359)
Increase (Decrease) in Assets Held-for-sale (4) 12
Net Cash Provided by (Used in) Discontinued Operations 159 (179)
Increase (decrease) in cash and cash equivalents 6 (123)
Cash and cash equivalents, beginning of period 463 581
Cash and cash equivalents, end of period $ 469 $ 458