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Supplemental Financial Statement Information (Schedule Of Statements Of Cash Flows) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
OPERATING ACTIVITIES | $ 7,506 | $ 4,429 | $ 3,322
Cash paid for Bakken Pipeline Transaction | (429) | (303) | (330)
Proceeds from the sale of other assets | 87 | 48 | 35
Contributions to unconsolidated affiliates | 26 | 268 | 68
Capital expenditures | (7,407) | (8,444) | (7,771)
Net cash used in investing activities | (7,075) | (5,606) | (8,982)
Proceeds from borrowings | 29,001 | 31,608 | 25,785
Repayments of long-term debt | (28,948) | (31,268) | (19,076)
Distributions to partners | (1,684) | (1,010) | (1,022)
Cash received from affiliate notes | 0 | (255) | 266
Proceeds from Issuance of Common Limited Partners Units | 0 | 568 | 0
Units repurchased under buyback program | (24) | 0 | 0
Debt issuance costs | (171) | (131) | (52)
Net cash (used in) provided by financing activities | (3,082) | 953 | 5,927
Increase (decrease) in cash and cash equivalents | 83 | (131) | (118)
Cash and cash equivalents, beginning of period | 336 | 467 | 585
Cash and cash equivalents, end of period | 419 | 336 | 467
Parent Company [Member] |  |  |
OPERATING ACTIVITIES | 2,245 | 831 | 918
Contributions to unconsolidated affiliates | 250 | 861 | 70
Capital expenditures | 0 | (1) | (16)
Payments to Acquire Additional Interest in Subsidiaries | 0 | 7 | 0
Net cash used in investing activities | 53 | (855) | (86)
Proceeds from borrowings | 463 | 2,219 | 225
Repayments of long-term debt | (1,651) | (1,881) | (210)
Distributions to partners | (1,684) | (1,010) | (1,022)
Cash received from affiliate notes | 575 | 174 | 176
Proceeds from Issuance of Common Limited Partners Units | 0 | 568 | 0
Debt issuance costs | 0 | (47) | 0
Net cash (used in) provided by financing activities | (2,297) | 23 | (831)
Increase (decrease) in cash and cash equivalents | 1 | (1) | 1
Cash and cash equivalents, beginning of period | 1 | 2 | 1
Cash and cash equivalents, end of period | 2 | 1 | 2
Increase (Decrease) in Notes Payable, Related Parties | $ 303 | $ 0 | $ 0

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References No definition available. + Details
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