Derivatives - Commodities (Details) - EnLink Midstream Partners, LP gal in Millions, MMBbls in Millions, MMBTU in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($) MMBTU gal MMBbls	Dec. 31, 2020 USD ($)
Derivatives
Net Fair Value	$ (10.0)	$ (2.1)
Commodity
Derivatives
Net Fair Value	(10.0)
Maximum loss if counterparties fail to perform	43.6
Possible reduction in maximum loss if counterparties fail to perform	$ 7.5
Commodity | NGL | Short
Derivatives
Notional amount (in gallons and mmbls) | gal	204.2
Net Fair Value	$ (18.1)
Commodity | NGL | Long
Derivatives
Notional amount (in gallons and mmbls) | gal	30.2
Net Fair Value	$ (0.1)
Commodity | Natural Gas | Short
Derivatives
Notional amount (in mmbtu) | MMBTU	10.8
Net Fair Value	$ (0.3)
Commodity | Natural Gas | Long
Derivatives
Notional amount (in mmbtu) | MMBTU	3.9
Net Fair Value	$ 0.7
Commodity | Crude and condensate | Short
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	9.5
Net Fair Value	$ (17.6)
Commodity | Crude and condensate | Long
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	4.3
Net Fair Value	$ 25.4