Goodwill and Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2022

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):

	Employer			Professional
	Solutions			Services		Total
Balance as of December 31, 2021	$	3,564			74		3,638
Measurement period adjustments		(10	)		—		(10	)
Foreign currency translation		(1	)		—		(1	)
Balance as of March 31, 2022	$	3,553			74		3,627

Schedule of Intangible Assets by Asset Class

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

	March 31, 2022						December 31, 2021
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
Intangible assets:
Customer-related and contract based    intangibles	$	3,661		180		3,481	$	3,662	$	119	$	3,543
Technology related intangibles		254		31		223		254		20		234
Trade name (finite life)		407		21		386		407		14		393
Total	$	4,322		232		4,090	$	4,323	$	153	$	4,170

Schedule of Intangible Asset Net Carrying Amount and Weighted Average Remaining Useful Lives

The following table reflects intangible assets net carrying amount and weighted-average remaining useful lives as of March 31, 2022 (in millions, except for years):

	Net		Weighted-Average
	Carrying		Remaining
	Amount		Useful Lives
Intangible assets at March 31, 2022:
Customer-related and contract-based    intangibles	$	3,481		14.2
Technology-related intangibles		223		5.2
Trade name (finite life)		386		14.1
Total	$	4,090

Schedule of Intangible Assets Expected Annual Amortization Expense

Subsequent to March 31, 2022, the annual amortization expense is expected to be as follows (in millions):

	Customer-Related		Technology		Trade
	and Contract Based		Related		Name
	Intangibles		Intangibles		Intangible
2022 (April - December)	$	183	$	32	$	21
2023		245		43		28
2024		245		43		28
2025		245		43		28
2026		245		42		27
Thereafter		2,318		20		254
Total amortization expense	$	3,481	$	223	$	386