Certain Provisions of the Partnership Agreement - Narrative and Distributions (Details) $ / shares in Units, $ in Millions			1 Months Ended		2 Months Ended	3 Months Ended												12 Months Ended			15 Months Ended
	Jan. 25, 2019	May 13, 2016	Sep. 30, 2017 USD ($) $ / shares shares	Jan. 31, 2016 $ / shares shares	Dec. 31, 2014 USD ($)	Dec. 31, 2019 USD ($) shares	Sep. 30, 2019 USD ($) shares	Jun. 30, 2019 USD ($) shares	Mar. 31, 2019 USD ($) shares	Dec. 31, 2018 USD ($) $ / shares shares	Sep. 30, 2018 USD ($) $ / shares shares	Jun. 30, 2018 USD ($) $ / shares shares	Mar. 31, 2018 USD ($) $ / shares shares	Dec. 31, 2017 USD ($) $ / shares shares	Sep. 30, 2017 USD ($) $ / shares shares	Jun. 30, 2017 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2019 USD ($) $ / shares shares	Dec. 31, 2018 USD ($) shares	Dec. 31, 2017 USD ($) shares	Jun. 30, 2017	Dec. 31, 2016 shares
Partnership agreement
Proceeds from sale of common units																		$ 0.0	$ 46.1	$ 106.9
Common units issued (in shares) | shares						487,791,612				181,309,981								487,791,612	181,309,981
Common units outstanding (in shares) | shares						487,791,612				181,309,981								487,791,612	181,309,981
Common units conversion ratio	1.15
EnLink Midstream Partners, LP
Partnership agreement
Common units conversion ratio	1.15
Percentage of available cash to distribute						100.00%												100.00%
Period after quarter for distribution																		45 days
Distribution made to limited partner, distributions paid, per unit (in dollars per share) | $ / shares										$ 0.390	$ 0.390	$ 0.390	$ 0.390	$ 0.390	$ 0.390	$ 0.390	$ 0.390
EnLink Midstream Partners, LP | General Partner | Incentive Distribution Level 1
Partnership agreement
Incentive distribution for general partner																		13.00%
Incentive distribution, distribution per unit (in dollars per share) | $ / shares																		$ 0.25
EnLink Midstream Partners, LP | General Partner | Incentive Distribution Level 2
Partnership agreement
Incentive distribution for general partner																		23.00%
Incentive distribution, distribution per unit (in dollars per share) | $ / shares																		$ 0.3125
EnLink Midstream Partners, LP | General Partner | Incentive Distribution Level 3
Partnership agreement
Incentive distribution for general partner																		48.00%
Incentive distribution, distribution per unit (in dollars per share) | $ / shares																		$ 0.375
Common Unit | EnLink Midstream Partners, LP | 2017 EDA
Partnership agreement
Partners' capital account, units, sold in private placement (in shares) | shares																		2,600,000		6,200,000
Proceeds from sale of common units																		$ 46.1		$ 106.9
Commissions																		$ 0.5		1.1
Registration fees																				0.2
Class C Common Unit
Partnership agreement
Common units issued (in shares) | shares																						7,075,433
Common units outstanding (in shares) | shares																						7,075,433
Class C Common Unit | EnLink Midstream Partners, LP
Partnership agreement
Common units conversion ratio		1
Series B Preferred Units
Partnership agreement
Common units conversion ratio				1
Series B Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Partners' capital account, units, sold in private placement (in shares) | shares				50,000,000
Shares issued, price per share (in dollars per share) | $ / shares				$ 15.00
Common units conversion ratio				1
Annual rate on issue price payable in kind																					8.50%
Annual rate on issue price payable in cash															28.125%
Annual rate on issue price															0.25%			0.25%
Series C Preferred Units
Partnership agreement
Proceeds from issuance of ENLK Preferred Units																		$ 0.0	$ 0.0	394.0
Series C Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Proceeds from sale of common units			$ 394.0
Shares issued, price per share (in dollars per share) | $ / shares			$ 1,000												$ 1,000
Partners' capital account, units, sold in public offering (in shares) | shares			400,000
Partners capital account, redemption price | $ / shares			$ 1,000
Partners' capital account, redemption period following review or appeal			120 days
Partners' capital account, redemption price following review or appeal | $ / shares			$ 1,020
Partners' capital account, dividend rate, percentage			6.00%
Distributions to preferred unitholders																		$ 24.0	$ 24.0	$ 5.6
LIBOR | Series C Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Partners' capital account, distributions, variable floating rate percentage			4.11%
Limited Partner | Common Unit | EnLink Midstream Partners, LP | 2017 EDA
Partnership agreement
Agreement for gross sales of common units (up to)					$ 350.0
Limited Partner | Series B Preferred Units
Partnership agreement
Partners' capital, conversion obligation period of consecutive trading days																		30 days
Partners' capital, average trading price, number of trading days																		2 days
Percent of issue price																		150.00%
Preferred units distributions (in shares) | shares						148,999	148,627	148,257	147,887	425,785	422,720	419,678	416,657	413,658	410,681	1,178,672	1,154,147
Proceeds from issuance of ENLK Preferred Units						$ 16.8	$ 17.1	$ 17.1	$ 16.7	$ 16.5	$ 16.4	$ 16.3	$ 16.2	$ 16.1	$ 15.9	$ 0.0	$ 0.0