Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue	$ 715		$ 1,440
Cost of services, exclusive of depreciation and amortization	483		974
Depreciation and amortization	13		24
Gross Profit	219		442
Operating Expenses
Selling, general and administrative	157		297
Depreciation and intangible amortization	85		170
Total operating expenses	242		467
Operating (Loss) Income	(23)		(25)
Other (Income) Expense
Gain from change in fair value of financial instruments	(50)		(63)
Gain from change in fair value of tax receivable agreement	(38)		(43)
Interest expense	29		58
Other (income) expense, net	(7)		(8)
Total other (income) expense, net	(66)		(56)
Income (Loss) Before Income Tax Benefit	43		31
Income tax benefit	(9)		(8)
Net Income (Loss)	52		39
Net income (loss) attributable to noncontrolling interests	1		(1)
Net Income (Loss) Attributable to Alight, Inc.	$ 51		$ 40
Earnings Per Share
Basic earnings per share	$ 0.11		$ 0.09
Diluted earnings per share	$ 0.10		$ 0.07
Other comprehensive income, net of tax:
Change in fair value of derivatives	$ 30		$ 77
Foreign currency translation adjustments	(12)		(15)
Total other comprehensive income, net of tax:	18		62
Comprehensive Income Before Noncontrolling Interests	70		101
Comprehensive income attributable to noncontrolling interests	2		8
Comprehensive Income Attributable to Alight, Inc.	$ 68		$ 93
Alight Holdings
Revenue		$ 672		$ 1,361
Cost of services, exclusive of depreciation and amortization		436		888
Depreciation and amortization		19		38
Gross Profit		217		435
Operating Expenses
Selling, general and administrative		105		222
Depreciation and intangible amortization		56		111
Total operating expenses		161		333
Operating (Loss) Income		56		102
Other (Income) Expense
Interest expense		61		123
Other (income) expense, net		1		9
Total other (income) expense, net		62		132
Income (Loss) Before Income Tax Benefit		(6)		(30)
Income tax benefit		(2)		(5)
Net Income (Loss)		(4)		(25)
Net Income (Loss) Attributable to Alight, Inc.		(4)		(25)
Other comprehensive income, net of tax:
Change in fair value of derivatives		6		23
Foreign currency translation adjustments		4		8
Total other comprehensive income, net of tax:		10		31
Comprehensive Income Before Noncontrolling Interests		6		6
Comprehensive Income Attributable to Alight, Inc.		$ 6		$ 6