Earnings Per Share - Schedule of Computation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Antidilutive Securities Excluded from Computation of Earnings Per Share
Net income (loss)	$ 1,032.9	$ (3,593.6)	$ 1,679.2	$ (2,494.0)
Basic weighted-average common shares outstanding (in shares)	256.7	258.1	256.8	258.1
Effect of potentially dilutive securities:
Diluted weighted-average common shares outstanding (in shares)	258.9	258.1	259.2	258.1
Basic net income (loss) per common share (in dollars per share)	$ 4.02	$ (13.92)	$ 6.54	$ (9.66)
Diluted net income (loss) per common share (in dollars per share)	$ 3.99	$ (13.92)	$ 6.48	$ (9.66)
Restricted stock units (including performance-based restricted stock units (“PSUs”))
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	1.3	0.0	1.4	0.0
Stock options
Effect of potentially dilutive securities:
Share-based payment arrangements (in shares)	0.9	0.0	1.0	0.0