Derivatives - Components of Commodity Swap Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivatives
Change in fair value of derivatives	$ 35.3	$ (23.8)	$ 20.2	$ (31.7)
Gain (loss) on derivative activity	4.5	(38.2)	(26.7)	(121.6)
EnLink Midstream Partners, LP \| Commodity swaps
Derivatives
Change in fair value of derivatives	35.3	(23.8)	20.2	(31.7)
Realized loss on derivatives	(30.8)	(14.4)	(46.9)	(89.9)
Gain (loss) on derivative activity	$ 4.5	$ (38.2)	$ (26.7)	$ (121.6)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments.

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Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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