Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Net income (loss)	$ 532.0	$ (134.5)
Subtract:
Net income (loss) attributable to noncontrolling interest	(0.5)	5.6
Total net income (loss), basic	532.5	(140.1)
Total net income (loss), diluted	$ 532.5	$ (140.1)
Weighted-average shares outstanding:
Basic	236.0	243.4
Dilutive effects:
Diluted	239.4	243.4
Net income (loss) per common share:
Basic	$ 2.26	$ (0.58)
Diluted	$ 2.22	$ (0.58)
Nonqualified Stock Options
Dilutive effects:
Stock-based compensation awards	0.8
Restricted Stock Units
Dilutive effects:
Stock-based compensation awards	2.2
Performance Share Awards
Dilutive effects:
Stock-based compensation awards	0.4