Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2026

Earnings Per Share [Abstract]

Summary of Basic and Diluted (Net Loss) Earnings Per Share

Basic and diluted (net loss) earnings per share are as follows (in millions, except for share and per share amounts):


									Three Months Ended March 31,
															2026						2025
Basic and diluted (net loss) earnings per share:
Numerator
Net Income (Loss) From Continuing Operations															$	(19)					$	(17)
Less: Net income (loss) attributable to noncontrolling interest															—						—
Net Income (loss) from continuing operations attributable to Alight, Inc.															$	(19)					$	(17)
Net Income (Loss) From Discontinued Operations, Net of Tax															—						(8)
Net Income (Loss) Attributable to Alight, Inc. - basic															$	(19)					$	(25)
Loss impact of conversion of noncontrolling interest															—						—
Net income (loss) attributable to Alight, Inc. - diluted															$	(19)					$	(25)
Denominator
Weighted-average shares outstanding - basic															524,744,108						532,297,681
Dilutive effect of the exchange of noncontrolling interest units															—						—
Dilutive effect of RSUs															—						—
Weighted-average shares outstanding - diluted															524,744,108						532,297,681

Basic and Diluted (net loss) earnings per share
Continuing operations															$	(0.04)					$	(0.03)
Discontinued operations															$	—					$	(0.02)
Net Income (Loss)															$	(0.04)					$	(0.05)