Derivatives - Commodities (Details) - EnLink Midstream Partners, LP gal in Millions, MMBbls in Millions, MMBTU in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($) MMBTU MMBbls gal	Dec. 31, 2019 USD ($)
Derivatives
Net Fair Value	$ 2.6	$ 8.4
Commodity
Derivatives
Net Fair Value	2.6
Maximum loss if counterparties fail to perform	15.7
Possible reduction in maximum loss if counterparties fail to perform	$ 8.1
Commodity | NGL | Short
Derivatives
Notional amount (in gallons and mmbls) | gal	172.5
Net Fair Value	$ (5.7)
Commodity | NGL | Long
Derivatives
Notional amount (in gallons and mmbls) | gal	3.4
Net Fair Value	$ (0.1)
Commodity | Natural Gas | Short
Derivatives
Notional amount (in mmbtu) | MMBTU	21.6
Net Fair Value	$ (0.2)
Commodity | Natural Gas | Long
Derivatives
Notional amount (in mmbtu) | MMBTU	15.9
Net Fair Value	$ (0.6)
Commodity | Crude and condensate | Short
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	10.7
Net Fair Value	$ 7.2
Commodity | Crude and condensate | Long
Derivatives
Notional amount (in gallons and mmbls) | MMBbls	0.6
Net Fair Value	$ 2.0