Goodwill and Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2023

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, 2022	$	3,606		73		3,679
Foreign currency translation		1		—		1
Balance as of March 31, 2023	$	3,607		73		3,680

Schedule of Intangible Assets by Asset Class

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

	March 31, 2023						December 31, 2022
	Gross				Net		Gross				Net
	Carrying		Accumulated		Carrying		Carrying		Accumulated		Carrying
	Amount		Amortization		Amount		Amount		Amortization		Amount
Intangible assets:
Customer-related and contract based    intangibles	$	3,670	$	426	$	3,244	$	3,670	$	364	$	3,306
Technology related intangibles		263		74		189		263		63		200
Trade name (finite life)		409		49		360		408		42		366
Total	$	4,342	$	549	$	3,793	$	4,341	$	469	$	3,872

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, 2023 (in millions, except for years):

	Net		Weighted-Average
	Carrying		Remaining
	Amount		Useful Lives
Intangible assets at March 31, 2023:
Customer-related and contract-based    intangibles	$	3,244		13.2
Technology-related intangibles		189		4.2
Trade name (finite life)		360		13.1
Total	$	3,793

Schedule of Intangible Assets Expected Annual Amortization Expense

Subsequent to March 31, 2023, the annual amortization expense is expected to be as follows (in millions):

	Customer-Related		Technology		Trade
	and Contract Based		Related		Name
	Intangibles		Intangibles		Intangibles
2023 (April - December)	$	184	$	34	$	22
2024		246		45		29
2025		246		45		28
2026		246		44		27
2027		246		21		27
Thereafter		2,076		—		227
Total amortization expense	$	3,244	$	189	$	360