Certain Provisions of the Partnership Agreement - Narrative (Details) $ / shares in Units, $ in Millions			1 Months Ended				3 Months Ended													12 Months Ended
	Feb. 11, 2022 USD ($)	Jan. 25, 2019	Jan. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Sep. 30, 2017 $ / shares shares	Jan. 31, 2016 $ / shares shares	Dec. 31, 2021 USD ($) shares	Sep. 30, 2021 USD ($) shares	Jun. 30, 2021 USD ($) shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Sep. 30, 2020 USD ($) shares	Jun. 30, 2020 USD ($) shares	Mar. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($) shares	Sep. 30, 2019 USD ($) shares	Jun. 30, 2019 USD ($) shares	Mar. 31, 2019 USD ($) shares	Sep. 30, 2018 $ / shares	Dec. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Partnership agreement
Redemption of Series B Preferred Units																				$ 50.0	$ 0.0	$ 0.0
Common units conversion ratio		1.15
EnLink Midstream Partners, LP
Partnership agreement
Common units conversion ratio		1.15
Series B Preferred Units
Partnership agreement
Stock redeemed during period (in shares) | shares																				3,300,330
Redemption of Series B Preferred Units																				$ 50.0
Redemption price of preferred stock, percent																				101.00%
Series B Preferred Units | Subsequent Event
Partnership agreement
Stock redeemed during period (in shares) | shares			3,333,334
Redemption of Series B Preferred Units			$ 50.5
Redemption price of preferred stock, percent			101.00%
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
Annual rate on issue price																				0.25%
Annual rate on issue price payable in cash																			28.125%
Series C Preferred Units | EnLink Midstream Partners, LP
Partnership agreement
Shares issued, price per share (in dollars per share) | $ / shares																			$ 1,000
Partners' capital account, units, sold in public offering (in shares) | shares					400,000
Partners capital account, redemption price (in dollars per share) | $ / 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	$ 24.0
Series C Preferred Units | EnLink Midstream Partners, LP | LIBOR
Partnership agreement
Partners' capital account, distributions, variable floating rate percentage					4.11%
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							0	151,626	151,248	150,871	150,494	150,119	149,745	149,371	148,999	148,627	148,257	147,887
Proceeds from issuance of ENLK Preferred Units							$ 19.2	$ 17.1	$ 17.0	$ 17.0	$ 16.9	$ 16.9	$ 16.8	$ 16.8	$ 16.8	$ 17.1	$ 17.1	$ 16.7
Dividends, preferred stock				$ 0.9
Limited Partner | Series B Preferred Units | Subsequent Event
Partnership agreement
Dividends, preferred stock	$ 17.3		$ 1.0