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Earnings Per Share (Tables)
12 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Schedule of Computation of Basic and Diluted Earnings per Share
The following table sets forth the computation of basic earnings per share and earnings per share, assuming dilution:
 Years Ended
 202520242023
Numerator (Dollars in Millions):
 
Net Earnings$2,889 $3,470 $3,668 
Denominator (Units in Millions):
Average Common Shares Outstanding1,870 1,939 2,008 
Other Potentially Dilutive Common Shares3 
Average Common Shares Outstanding, Assuming Dilution1,873 1,943 2,013 
Net Earnings Per Share, Basic$1.54 $1.79 $1.83 
Net Earnings Per Share, Assuming Dilution$1.54 $1.79 $1.82 
Schedule of Average Outstanding Equity Awards Excluded from Diluted Earnings Per Share Calculation The total average outstanding equity awards that were excluded from the diluted earnings per share calculation because their effect was antidilutive is in the table below.
Years Ended
202520242023
Antidilutive Stock Options Excluded from Diluted EPS (Units in Millions)
5 
Schedule of Share Repurchase Activity
During 2025, 2024 and 2023, CSX repurchased the following shares:
Years Ended
202520242023
Shares Repurchased (Units in Millions)
44 65 112 
Cost of Shares (Dollars in Millions)
$1,376 $2,204 $3,482 
Average Price Paid per Share$30.95 $34.14 $30.95 
Excise Taxes Paid for Net Share Repurchases
(Dollars in Millions) (a)
$20 $33 $— 
(a) Excise tax payments made in 2025 were related to share repurchases in 2024. Excise tax payments made in 2024 were related to share repurchases in 2023.