v3.26.3
Loss Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Basic loss per common share computation:        
Net loss attributable to Unisys Corporation $ (201.0) $ (308.9) $ (332.1) $ (358.5)
Weighted average shares (in shares) 72,928 71,301 72,548 70,889
Basic loss per common share (in dollars per share) $ (2.76) $ (4.33) $ (4.58) $ (5.06)
Diluted loss per common share computation:        
Net loss attributable to Unisys Corporation $ (201.0) $ (308.9) $ (332.1) $ (358.5)
Weighted average shares (in shares) 72,928 71,301 72,548 70,889
Plus incremental shares from assumed vesting of employee stock plans (in shares) 0 0 0 0
Adjusted weighted average shares (in shares) 72,928 71,301 72,548 70,889
Diluted loss per common share (in dollars per share) $ (2.76) $ (4.33) $ (4.58) $ (5.06)
Stock options and restricted stock units        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Anti-dilutive restricted stock units (in shares) 2,411 2,362 2,507 2,711