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Earnings Per Share
 9 Months Ended
Sep. 30, 2025
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The following table sets forth the computation of basic and diluted net income (loss) per common share for the periods ended:
Three Months Ended September 30,Nine Months Ended September 30,
2025202420252024
(in millions, except per share amounts)
Net income (loss)$1,082.9 $1,045.4 $2,762.1 $(1,448.6)
Basic weighted-average common shares outstanding255.6 258.0 256.4 258.1 
Effect of potentially dilutive securities:
Restricted stock units (including performance-based restricted stock units (“PSUs”))
1.1 1.9 1.3 — 
Stock options0.9 1.1 0.9 — 
Diluted weighted-average common shares outstanding257.6 261.0 258.6 258.1 
Basic net income (loss) per common share$4.24 $4.05 $10.77 $(5.61)
Diluted net income (loss) per common share$4.20 $4.01 $10.68 $(5.61)
During the three and nine months ended September 30, 2025 and 2024, the number of anti-dilutive securities that were excluded from the computation of our diluted net income per common share were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
2025202420252024
(in millions)
Unvested restricted stock units (including PSUs)0.7 — 0.2 1.1 
Stock options— — — 0.6