Derivatives - Commodities (Details) - EnLink Midstream Partners, LP gal in Millions, MMBbls in Millions, MMBTU in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) MMBTU gal MMBbls	Dec. 31, 2019 USD ($)
Derivatives
Net Fair Value	$ 21.4	$ 8.4
Commodity
Derivatives
Net Fair Value	21.4
Maximum loss if counterparties fail to perform	83.2
Possible reduction in maximum loss if counterparties fail to perform	$ 21.4
Commodity | NGL | Short
Derivatives
Notional amount (in gallons and mmbls) | gal	155.8
Net Fair Value	$ 8.9
Commodity | NGL | Long
Derivatives
Notional amount (in gallons and mmbls) | gal	8.1
Net Fair Value	$ (0.3)
Commodity | Natural Gas | Short
Derivatives
Notional amount (in mmbtu) | MMBTU	20.3
Net Fair Value	$ 0.5
Commodity | Natural Gas | Long
Derivatives
Notional amount (in mmbtu) | MMBTU	15.0
Net Fair Value	$ (0.5)
Commodity | Crude and condensate | Short
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	13.2
Net Fair Value	$ (46.0)
Commodity | Crude and condensate | Long
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	2.1
Net Fair Value	$ 58.8