Related Party Transactions (Details) - USD ($) $ in Millions				1 Months Ended		3 Months Ended												7 Months Ended	12 Months Ended				14 Months Ended
		Nov. 09, 2016	Jan. 01, 2014	Jan. 31, 2016	Jun. 30, 2014	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Jul. 18, 2018	Dec. 31, 2018		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Jan. 07, 2016
Related Party Transaction [Line Items]
Accounts payable to related party						$ 4.3				$ 16.3									$ 4.3		$ 16.3		$ 16.3
Revenues						$ 2,058.3	$ 2,114.3	$ 1,764.7	$ 1,761.7	1,756.2	$ 1,397.9	$ 1,263.6	$ 1,321.9	$ 1,224.9	$ 1,104.6	$ 1,033.2	$ 889.7		7,699.0		5,739.6	$ 4,252.4
Cost of sales	[1]																		$ 6,008.0		4,361.5	3,015.5
EOGP
Related Party Transaction [Line Items]
Acquired voting interest						16.10%													16.10%					16.10%
EOGP | EnLink Midstream Partners, LP
Related Party Transaction [Line Items]
Acquired voting interest																								83.90%
Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Term of contract		15 years
Revenues																			$ 0.5		5.4		0.0
Cost of sales																			44.1	[1]	30.6
Reimbursed Capital Expenditures
Related Party Transaction [Line Items]
Related party transactions																			$ 26.6		48.4	31.5
Tax Sharing Agreement
Related Party Transaction [Line Items]
Related party transactions																		$ 0.4			1.2	2.3
Net Devon Investment
Related Party Transaction [Line Items]
Accounts receivable balance										102.7											102.7		102.7
Accounts payable to related party										16.3											16.3		16.3
Revenue from related parties																		66.6			78.0	107.2
Net Devon Investment | EnLink Midstream Partners, LP
Related Party Transaction [Line Items]
Revenues																		321.3
Revenue from purchased oil and gas																					615.5	611.8
Net Devon Investment | VEX Pipeline
Related Party Transaction [Line Items]
Term of contract					5 years
Revenue from related parties																		3.5			17.8	18.7
Net Devon Investment | Enlink Midstream Services Agreement | EnLink Midstream Partners, LP
Related Party Transaction [Line Items]
Term of contract			10 years
Net Devon Investment | Minimum Volume Contract
Related Party Transaction [Line Items]
Revenue from purchased oil and gas																		50.8			81.9	46.2
Acacia
Related Party Transaction [Line Items]
Revenue from related parties																		4.9			13.8	15.2
Gulf Coast Fractionators
Related Party Transaction [Line Items]
Revenue from related parties																		10.5			12.6	3.4
Gulf Coast Fractionators | Net Devon Investment
Related Party Transaction [Line Items]
Ownership interest						38.75%													38.75%
Devon Energy Production Company | EOGP
Related Party Transaction [Line Items]
Term of contract				15 years
Minimum volume commitment				4 years
Revenue from related parties																		$ 77.6			100.4	34.4
Devon Energy Production Company | VEX Pipeline
Related Party Transaction [Line Items]
Minimum volume commitment					5 years
E N L K
Related Party Transaction [Line Items]
Reimbursement revenue																			$ 2.5		2.4	$ 2.3
Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Accounts receivable balance						$ 0.7				0.0									0.7		0.0		0.0
Accounts payable to related party						$ 4.3				$ 0.0									$ 4.3		$ 0.0		$ 0.0
Customer Concentration Risk | Sales Revenue, Net | Net Devon Investment
Related Party Transaction [Line Items]
Concentration risk																			5.40%		14.40%	18.50%

[1] Includes related party cost of sales of $114.1 million, $211.0 million, and $150.1 million for the years ended December 31, 2018, 2017, and 2016, respectively.