Earnings (loss) per common share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Schedule of Computation of Earnings (Loss) Per Common Share Attributable to Unisys Corporation

The following table shows how loss per common share attributable to Unisys Corporation was computed for the three years ended December 31, 2023 (shares in thousands).

Year ended December 31,	2023		2022		2021
Basic loss per common share computation:
Net loss attributable to Unisys Corporation	$	(430.7)	$	(106.0)	$	(448.5)
Weighted average shares	68,254		67,665		66,451
Basic loss per common share	$	(6.31)	$	(1.57)	$	(6.75)
Diluted loss per common share computation:
Net loss attributable to Unisys Corporation	$	(430.7)	$	(106.0)	$	(448.5)
Weighted average shares	68,254		67,665		66,451
Plus incremental shares from assumed conversions of employee stock plans	—		—		—
Adjusted weighted average shares	68,254		67,665		66,451
Diluted loss per common share	$	(6.31)	$	(1.57)	$	(6.75)
Anti-dilutive weighted-average restricted stock units(i)	945		481		871
Anti-dilutive weighted-average common shares issuable upon conversion of the 5.50% convertible senior notes(i) (see Note 15, “Debt”)	—		—		557

(i)Amounts represent shares excluded from the computation of diluted earnings per share, as their effect, if included, would have been anti-dilutive for the periods presented.