Segment Information - Reconciliation to Adjusted EBITDA (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Income (loss) from continuing operations, net of income taxes	$ 284.1	$ (119.8)
Depreciation, depletion and amortization	76.3	72.9
Asset retirement obligation expenses	15.4	15.0
Restructuring charges	0.1	1.6
Asset impairment	2.0	0.0
Changes in amortization of basis difference related to equity affiliates	(0.3)	(0.6)
Interest expense	18.4	39.4
Net loss on early debt extinguishment	6.8	23.5
Interest income	(13.1)	(0.5)
Unrealized (gains) losses on derivative contracts related to forecasted sales	(118.7)	301.0
Unrealized losses (gains) on foreign currency option contracts	2.2	(3.3)
Take-or-pay contract-based intangible recognition	(0.6)	(0.7)
Income tax provision (benefit)	118.0	(1.0)
Adjusted EBITDA	$ 390.6	$ 327.5