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Debt Obligations Debt Obligations (Schedule Of Debt Obligations) (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Jun. 30, 2018 | Jan. 31, 2018 | Dec. 31, 2017 | Aug. 01, 2016
--- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net | $ 227 |  |  |  |
Other Long-term Debt | 7 |  |  | $ 8 |
Long-term Debt | 46,028 |  |  | 44,084 |
Current maturities of long-term debt | 2,655 |  |  | 413 |
Long-term debt, less current maturities | 43,373 |  |  | 43,671 |
Parent Company [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net | 10 |  |  | 11 |
Deferred Finance Costs, Noncurrent, Net | (27) |  |  | (34) |
Long-term Debt | 5,520 |  |  | 6,700 |
Long-term debt, less current maturities | 5,519 |  |  | 6,700 |
Parent Company [Member] | ETE 7.5% Senior Notes due 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,187 |  |  | 1,187 |
Parent Company [Member] | 5.875% Senior Notes due January 15, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,150 |  |  | 1,150 |
Parent Company [Member] | 5.5% Senior Notes due June 1, 2027 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
Parent Company [Member] | 4.25% Senior Notes due March 15, 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
Parent Company [Member] | ETE Senior Secured Term Loan due February 2, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Secured Debt | 1,220 |  |  | 1,220 |
Parent Company [Member] | ETE Senior Secured Revolving Credit Facility due March 24, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 0 |  |  | 1,188 |
ETO [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net | 17 |  |  | 33 |
Deferred Finance Costs, Noncurrent, Net | (178) |  |  | (170) |
Long-term Debt | 32,288 |  |  | 29,210 |
ETO [Member] | 7.60% Senior Notes, due February 1, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 277 |  |  | 277 |
ETO [Member] | 4.05% Senior Notes due March 2025 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 4.75% Senior Notes due January 2026 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 8.25% Senior Notes, due November 14, 2029 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 267 |  |  | 267 |
ETO [Member] | 4.90% Senior Notes due March 2035 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 500 |  |  | 500 |
ETO [Member] | 6.625% Senior Notes, due October 15, 2036 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 400 |  |  | 400 |
ETO [Member] | 5.80% Senior Notes due 2038 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 500 | $ 500 |  | 0 |
ETO [Member] | 7.5% Senior Notes, due July 1, 2038 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 550 |  |  | 550 |
ETO [Member] | Senior Notes 6.05% Due June 1, 2041 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 700 |  |  | 700 |
ETO [Member] | Senior Notes 6.50% Due February 1, 2042 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 5.15% Senior Notes due February 1, 2043 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 450 |  |  | 450 |
ETO [Member] | 5.95% Senior Notes due October 1, 2043 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 450 |  |  | 450 |
ETO [Member] | 5.15% Senior Notes due March 2045 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 6.125% Senior Notes due December 2045 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 5.30% Senior Notes due April 2047 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 900 |  |  | 900 |
ETO [Member] | 5.40% Senior Notes due October 1, 2047 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,500 |  |  | 1,500 |
ETO [Member] | 6.0% Senior Notes due 2048 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 | 1,000 |  | 0 |
ETO [Member] | 7.2% Junior Subordinated Notes due November 21, 2066 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Junior Subordinated Notes | 546 |  |  | 546 |
ETO [Member] | ETO Credit Facility due December 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 3,694 |  |  | 2,292 |
ETO [Member] | 9.00% Debentures, due 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Subordinated Debt | 65 |  |  | 65 |
ETO [Member] | 5.50% Senior Notes, due February 15, 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 250 |  |  | 250 |
ETO [Member] | Senior Note 4.65% Due February 15, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 300 |  |  | 300 |
ETO [Member] | 3.45% Senior Notes due January 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 350 |  |  | 350 |
ETO [Member] | 6.85% Senior Notes, due February 15, 2040 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 250 |  |  | 250 |
ETO [Member] | 4.25% Senior Notes due April 1, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 500 |  |  | 500 |
ETO [Member] | 5.95% Senior Notes due December 2025 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 400 |  |  | 400 |
ETO [Member] | 3.90% Senior Notes due July 15, 2026 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 550 |  |  | 550 |
ETO [Member] | 4.20% Senior Notes due April 2027 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 600 |  |  | 600 |
ETO [Member] | 4.00% Senior Notes due October 1, 2027 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 750 |  |  | 750 |
ETO [Member] | 4.95% Senior Notes due 2028 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 | 1,000 |  | 0 |
ETO [Member] | Senior Note 6.10%, due February 15, 2042 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 300 |  |  | 300 |
ETO [Member] | 5.30% Senior Notes due April 1, 2044 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 700 |  |  | 700 |
ETO [Member] | 5.35% Senior Notes due May 15, 2045 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 800 |  |  | 800 |
ETO [Member] | 4.95% Senior Notes due January 2043 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 350 |  |  | 350 |
ETO [Member] | 2.50% Senior Notes due June 2018 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 | 650 |  | 650 |
ETO [Member] | 6.7% Senior Notes, due July 1, 2018 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 | 600 |  | 600 |
ETO [Member] | 9.7% Senior Notes, due March 15, 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 400 |  |  | 400 |
ETO [Member] | 9.0% Senior Notes due April 15, 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 450 |  |  | 450 |
ETO [Member] | 5.75% Senior Notes due September 1, 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 400 |  |  | 400 |
ETO [Member] | 4.15% Senior Notes due October 1, 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,050 |  |  | 1,050 |
ETO [Member] | 5.875% Senior Notes due April 1, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 900 |  |  | 900 |
ETO [Member] | 4.5% Senior Notes due November 1, 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 600 |  |  | 600 |
ETO [Member] | 4.9% Senior Notes due February 1, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 350 |  |  | 350 |
ETO [Member] | Senior Notes 4.65% Due June 1, 2021 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 800 |  |  | 800 |
ETO [Member] | Senior Notes 5.20% Due February 1, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 1,000 |  |  | 1,000 |
ETO [Member] | 5.0% Senior Notes due October 1, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 700 |  |  | 700 |
ETO [Member] | 3.6% Senior Notes due February 1, 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 800 |  |  | 800 |
ETO [Member] | 4.20% Senior Notes due 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 500 | 500 |  | 0 |
ETO [Member] | ETO 364-day Credit Facility due November 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 0 |  |  | 50 |
Bakken Project [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Deferred Finance Costs, Noncurrent, Net | (3) |  |  | (8) |
Long-term Debt | 2,497 |  |  | 2,492 |
Bakken Project [Member] | Bakken Project $2.50 billion Credit Facility due August 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 2,500 |  |  | 2,500 | $ 2,500
Sunoco LP [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Capital Lease Obligations | 107 |  |  | 113 |
Deferred Finance Costs, Noncurrent, Net | (23) |  |  | (34) |
Long-term Debt | 2,984 |  |  | 4,287 |
Sunoco LP [Member] | 5.5% Senior Notes due August 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 |  | $ 600 | 600 |
Sunoco LP [Member] | 6.375% Senior Notes due April 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 |  | 800 | 800 |
Sunoco LP [Member] | 6.25% Senior Notes due 2021 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 |  | $ 800 | 800 |
Sunoco LP [Member] | Sunoco LP $1.5 billion Revolving Credit Facility due July 2023 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 700 |  |  | 0 |
Sunoco LP [Member] | Sunoco LP $1.5 Billion Revolving Credit Facility Due September 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 0 |  |  | 765 |
Sunoco LP [Member] | Term loan due 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Long-term Line of Credit | 0 |  |  | 1,243 |
Transwestern [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Deferred Finance Costs, Noncurrent, Net | 1 |  |  | 1 |
Long-term Debt | 574 |  |  | 574 |
Transwestern [Member] | 5.36% Senior Unsecured Notes, due December 9, 2020 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 175 |  |  | 175 |
Transwestern [Member] | 5.89% Senior Unsecured Notes, due May 24, 2022 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 150 |  |  | 150 |
Transwestern [Member] | 5.66% Senior Unsecured Notes, due December 9, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 175 |  |  | 175 |
Transwestern [Member] | 6.16% Senior Unsecured Notes, due May 24, 2037 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 75 |  |  | 75 |
Panhandle [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Debt Instrument, Unamortized Discount (Premium), Net | 14 |  |  | 28 |
Long-term Debt | 399 |  |  | 813 |
Panhandle [Member] | 7.60% Senior Notes, due February 1, 2024 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 82 |  |  | 82 |
Panhandle [Member] | 8.25% Senior Notes, due November 14, 2029 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 33 |  |  | 33 |
Panhandle [Member] | 7.2% Junior Subordinated Notes due November 21, 2066 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Junior Subordinated Notes | 54 |  |  | 54 |
Panhandle [Member] | 7.00% Senior Notes, due June 15, 2018 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 0 | $ 400 |  | 400 |
Panhandle [Member] | 8.125% Senior Notes, due June 1, 2019 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 150 |  |  | 150 |
Panhandle [Member] | 7.00% Senior Notes, due July 15, 2029 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 66 |  |  | 66 |
USA Compression Partners, LP [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior Notes | 725 |  |  | 0 |
Long-term Line of Credit | 1,050 |  |  | 0 |
Deferred Finance Costs, Noncurrent, Net | (16) |  |  | 0 |
Long-term Debt | $ 1,759 |  |  | $ 0 |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: 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(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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