Goodwill and Intangible Assets, Net (Tables)

9 Months Ended

Sep. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Changes in Net Carrying Amount of Goodwill

The changes in the net carrying amount of goodwill are as follows (in millions):

	Predecessor
	Employer		Professional
	Solutions		Services		Total
Balance as of December 31, 2020	$	1,985	$	260	$	2,245
Measurement period adjustments		2		—		2
Foreign currency translation		2		1		3
Balance as of June 30, 2021	$	1,989	$	261	$	2,250

Schedule of Intangible Assets by Asset Class

Intangible assets by asset class are as follows (in millions):

	Successor						Predecessor
	September 30, 2021						December 31, 2020
	Gross				Net		Gross
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Net Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
Intangible assets:
Customer related and contract based    intangibles	$	3,456	$	58	$	3,398	$	2,078	$	486	$	1,592
Technology related intangibles		222		9		213		316		180		136
Trade name (finite life)		400		7		393		8		6		2
Trade name (indefinite life)		—		—		—		3		—		3
Total	$	4,078	$	74	$	4,004	$	2,405	$	672	$	1,733

Schedule of Intangible Assets Expected Annual Amortization Expense

Subsequent to September 30, 2021, the annual amortization expense is expected to be as follows (in millions):

	Customer Related		Technology		Trade
	and Contract Based		Related		Name
	Intangibles		Intangibles		Intangible
Remainder of 2021 (October - December)	$	58	$	10	$	6
2022		230		37		27
2023		230		37		27
2024		230		37		27
2025		230		37		27
Thereafter		2,420		55		279
Total amortization expense	$	3,398	$	213	$	393