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Partners' Capital Series A Preferred Units (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 30, 2017 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015 | Mar. 30, 2022 | Feb. 14, 2018 | Jan. 25, 2018 | Nov. 14, 2017 | Aug. 15, 2017
Preferred Units, Issued | 12,000,000 |  |  |  |  |  |  |  |
Shares Issued, Price Per Share | $ 25.00 |  |  |  |  |  |  |  |
Distribution rate | 10.00% |  |  |  |  |  |  |  |
Preferred Stock, Liquidation Preference Per Share | $ 25.00 |  |  |  |  |  |  |  |
Distributions Per Partnership Unit | $ 2.50 |  |  |  |  |  |  |  |
Proceeds from issuance of common units, net of offering costs |  | $ 33 | $ 71 | $ 899 |  |  |  |  |
Scenario, Forecast [Member] |  |  |  |  |  |  |  |  |
Distribution rate |  |  |  |  | 8.00% |  |  |  |
Series A Preferred Unit [Member] |  |  |  |  |  |  |  |  |
Preferred Unit, Quarterly Distribution |  | 8 |  |  |  |  |  | $ 7 | $ 8
Series A Preferred Unit [Member] | Scenario, Forecast [Member] |  |  |  |  |  |  |  |  |
Redemption price |  |  |  |  | 101.00% |  |  |  |
ETE [Member] |  |  |  |  |  |  |  |  |
Proceeds from issuance of common units, net of offering costs | $ 300 | $ 300 | $ 61 | $ 0 |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Series A Preferred Unit, Redemption Amount |  |  |  |  |  |  | $ 313 |  |
Subsequent Event [Member] | Series A Preferred Unit [Member] |  |  |  |  |  |  |  |  |
Preferred Unit, Quarterly Distribution |  |  |  |  |  | $ 8 |  |  |

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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21484-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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