Derivatives - Commodities (Details) - EnLink Midstream Partners, LP gal in Millions, MMBbls in Millions, MMBTU in Millions, $ in Millions	6 Months Ended
Jun. 30, 2018 USD ($) MMBTU gal MMBbls	Dec. 31, 2017 USD ($)
Derivatives
Fair Value	$ (15.6)	$ (1.6)
Commodity
Derivatives
Fair Value	(15.6)
Maximum loss if counterparties fail to perform	$ 8.3
Commodity \| NGL \| Short
Derivatives
Notional amount (in gallons and mmbls) \| gal	46.9
Fair Value	$ (7.3)
Commodity \| NGL \| Long
Derivatives
Notional amount (in gallons and mmbls) \| gal	17.9
Fair Value	$ 0.5
Commodity \| Natural Gas \| Short
Derivatives
Notional amount (in mmbtu) \| MMBTU	9.7
Fair Value	$ 1.4
Commodity \| Natural Gas \| Long
Derivatives
Notional amount (in mmbtu) \| MMBTU	7.5
Fair Value	$ (2.4)
Commodity \| Crude and condensate \| Short
Derivatives
Notional amount (in gallons and mmbls) \| MMBbls	8.8
Fair Value	$ (12.1)
Commodity \| Crude and condensate \| Long
Derivatives
Notional amount (in gallons and mmbls) \| MMBbls	1.1
Fair Value	$ 4.3

The maximum potential exposure to credit losses on derivative contracts.

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- Definition

Fair values as of the balance sheet date of the net amount of all assets and liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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