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EARNINGS (LOSS) PER COMMON SHARE (Tables)
9 Months Ended
Sep. 30, 2023
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Earnings (Loss) Per Share
The following table shows the effect of stock-based awards on the weighted average number of shares outstanding used in calculating diluted earnings (loss) per share:
In millions of shares
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Weighted average common shares outstanding - basic92.5 92.2 92.4 92.1 
Incremental shares outstanding related to stock-based awards (1)
0.4 0.2 — 0.3 
Weighted average common shares outstanding - diluted92.9 92.4 92.4 92.4 
(1)In periods of net loss, stock-based awards are anti-dilutive and therefore excluded from the loss per share calculation.
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share
Anti-dilutive stock-based awards excluded from the computation of diluted earnings (loss) per share using the treasury stock method include the following:
In thousands of shares
Three Months Ended September 30,Nine Months Ended September 30,
2023202220232022
Option awards711 1,153 780 1,297 
RSU awards98 397 115