Restructuring (Tables)

3 Months Ended

Mar. 31, 2024

Restructuring and Related Activities [Abstract]

Summary of Restructuring Costs

The following table summarizes restructuring costs by type that have been incurred.

	Three Months Ended			Three Months Ended					Estimated		Estimated
	March 31,			March 31,			Inception to		Remaining		Total
	2024			2023			Date		Costs		Cost
Employer Solutions
Severance and Related Benefits	$	2	$		—	$		7	$	5	$	12
Other Restructuring Costs(1)		11			17			62		24		86
Total Employer Solutions	$	13	$		17	$		69	$	29	$	98
Corporate
Severance and Related Benefits	$	2	$		5	$		17	$	4	$	21
Other Restructuring Costs(1)		—			1			2		1		3
Total Corporate	$	2	$		6	$		19	$	5	$	24
Total Restructuring Costs	$	15	$		23	$		88	$	34	$	122

(1)Other restructuring costs associated with the Transformation Program primarily include data center exit costs, third party fees associated with the restructuring, and costs associated with transitioning existing technology and processes.

Schedule of Accrued Restructuring Liability

As of March 31, 2024, approximately $9 million of the Company's total restructuring liability is unpaid and is recorded in Accounts payable and accrued liabilities on the Condensed Consolidated Balance Sheets.

	Severance and			Other Restructuring
	Related Benefits			Costs			Total
Accrued restructuring liability as of December 31, 2023	$	6		$	1		$	7
Restructuring charges		4			11			15
Cash payments		(4	)		(9	)		(13	)
Accrued restructuring liability as of March 31, 2024	$	6		$	3		$	9