10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

☒    QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2021

or

☐    TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File Number: 001-36373

TRINET GROUP, INC.

(Exact Name of Registrant as Specified in its Charter)

Delaware		95-3359658
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)
One Park Place,	Suite 600
Dublin,	CA	94568
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (510) 352-5000

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock par value $0.000025 per share	TNET	New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  x    No  o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  x    No  o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	x	Accelerated filer	o
Non-accelerated filer	o	Smaller reporting company	☐
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  Yes  o    No  o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  x

The number of shares of Registrant’s Common Stock outstanding as of July 19, 2021 was 65,857,282.

TABLE OF CONTENTS

TRINET GROUP, INC.

Form 10-Q - Quarterly Report

For the Quarterly Period Ended June 30, 2021

TABLE OF CONTENTS

	Form 10-Q Cross Reference	Page
Glossary		3
Cautionary Note Regarding Forward-Looking Statements		4
Unaudited Condensed Consolidated Financial Statements	Part I, Item 1.	31
Condensed Consolidated Statements of Income and Comprehensive Income		31
Condensed Consolidated Balance Sheets		32
Condensed Consolidated Statements of Stockholders' Equity		33
Condensed Consolidated Statements of Cash Flows		34
Notes to Condensed Consolidated Financial Statements		35
Note 1. Description of Business and Significant Accounting Policies		35
Note 2. Cash, Cash Equivalents and Investments - Unrestricted and Restricted		37
Note 3. Investments		37
Note 4. Financial Instruments and Fair Value Measurements		38
Note 5. Accrued Workers' Compensation Costs		40
Note 6. Long-term Debt and Revolving Credit Agreements		41
Note 7. Commitments and Contingencies		42
Note 8. Stock Based Compensation		42
Note 9. Stockholders' Equity		43
Note 10. Income Taxes		44
Note 11. Earnings Per Share		45
Management’s Discussion and Analysis of Financial Condition and Results of Operations	Part I, Item 2.	6
Quantitative and Qualitative Disclosures About Market Risk	Part I, Item 3.	29
Controls and Procedures	Part I, Item 4.	30
Legal Proceedings	Part II, Item 1.	48
Risk Factors	Part II, Item 1A.	47
Unregistered Sales of Equity Securities and Use of Proceeds	Part II, Item 2.	49
Defaults Upon Senior Securities	Part II, Item 3.	49
Mine Safety Disclosures	Part II, Item 4.	49
Other Information	Part II, Item 5.	49
Exhibits	Part II, Item 6.	50

2

GLOSSARY Table of Contents

Glossary of Acronyms and Abbreviations

Acronyms and abbreviations are used throughout this report, particularly in Part I, Item 1. Unaudited Condensed Consolidated Financial Statements and Part I, Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations.

2021 Credit Program	A 2021 program potentially provide credits to certain 2021 customers, subject to certain predefined conditions and based on the existence of certain pandemic related excess health care cost savings.
2018 Term Loan	Our $425 million term loan A that we entered into in June 2018
AFS	Available-for-sale
CARES Act	Coronavirus Aid Relief and Economic Security Act
CEO	Chief Executive Officer
CFO	Chief Financial Officer
COBRA	Consolidated Omnibus Budget Reconciliation Act
COPS	Cost of providing services
COVID-19	Novel coronavirus
D&A	Depreciation and amortization expenses
EBITDA	Earnings before interest expense, taxes, depreciation and amortization of intangible assets
EPS	Earnings Per Share
ERISA	Employee Retirement Income Security Act
ESAC	Employer Services Assurance Corporation
ETR	Effective tax rate
FFCRA	Families First Coronavirus Response Act
G&A	General and administrative
GAAP	Generally Accepted Accounting Principles in the United States
HR	Human Resources
IRS	Internal Revenue Service
ISR	Insurance service revenues
LIBOR	London Inter-bank Offered Rate
MD&A	Management's Discussion and Analysis of Financial Condition and Results of Operations
OE	Operating expenses
PEO	Professional Employer Organization
PFC	Payroll funds collected
PPP	Paycheck Protection Program, a loan program administered by the U.S. Small Business Administration
PSR	Professional service revenues
Recovery Credit	2020 Program to provide clients with one-time reductions against fees for future services
Reg FD	Regulation Fair Disclosure
ROU	Right-of-use
RSA	Restricted Stock Award
RSU	Restricted Stock Unit
SBC	Stock Based Compensation
S&M	Sales and marketing
S&P	Standard & Poor's
SD&P	Systems development and programming
SEC	U.S. Securities and Exchange Commission
SMB	Small and medium-size business
U.S.	United States
WSE	Worksite employee
YTD	Year to date

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FORWARD LOOKING STATEMENTS AND OTHER FINANCIAL INFORMATION Table of Contents

Cautionary Note Regarding Forward-Looking Statements

For purposes of this Quarterly Report on Form 10-Q (Form 10-Q), the terms “TriNet,” “the Company,” “we,” “us” and “our” refer to TriNet Group, Inc., and its subsidiaries. This Form 10-Q contains statements that are not historical in nature, are predictive in nature, or that depend upon or refer to future events or conditions or otherwise contain forward-looking statements within the meaning of Section 21 of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Forward-looking statements are often identified by the use of words such as, but not limited to, "ability," “anticipate,” “believe,” “can,” “continue,” “could,” “design,” “estimate,” “expect,” “forecast,” “hope,” "impact," “intend,” “may,” “outlook,” “plan,” “potential,” “predict,” “project,” “seek,” “should,” “strategy,” “target,” "value," “will,” “would” and similar expressions or variations intended to identify forward-looking statements. Examples of forward-looking statements include, among others, TriNet’s expectations regarding: our ability to support the economic recovery of our clients and SMBs; our ability to respond appropriately to the impact of COVID-19 on our business and our clients' businesses; the impact on our prospects, clients and business of our Connect 360 service model, TriNet Financial Services Preferred and the launch of our 2nd annual TriNet PeopleForce conference; the effect that our offering of $500 million of our 3.50% senior notes and of our replacement of our existing revolving facility with our new $500 million revolving facility will have on our business; the timing and strategies we employ with respect to corporate investments and capital expenditures; expectations regarding medical utilization rates by our WSEs; the impact of the COVID-19 pandemic on regulations and government programs; the impact of our 2020 Recovery Credit program and our 2021 Credit Program and their suitability for generating client loyalty and retention; our ability to modify or develop service offerings to assist clients affected by COVID-19; the impact of our vertical approach; our ability to leverage our scale and industry HR experience to deliver vertical service offerings; the growth of our client base; planned improvements to our technology platform; our ability to drive operating efficiencies and improve the client experience; the impact of our client service initiatives; the volume and severity of insurance claims and the impact of COVID-19 on those claims; metrics that may be indicators of future financial performance; the relative value of our benefit offerings versus those SMBs can independently obtain; the principal competitive drivers in our market; our plans to retain clients and manage client attrition; our investment strategy and its impact on our ability to generate future interest income, net income, and Adjusted EBITDA; seasonal trends and their impact on our business, including due to COVID-19; fluctuations in the period-to-period timing of when we incur certain operating expenses; the estimates and assumptions we use to prepare our financial statements; and other expectations, outlooks and forecasts on our future business, operational and financial performance.

Important factors that could cause actual results, level of activity, performance or achievements to differ materially from those expressed or implied by these forward-looking statements are discussed above and throughout our Annual Report on Form 10-K for the year ended December 31, 2020 filed with the SEC on February 16, 2021 (our 2020 Form 10-K), including those appearing under the heading “Risk Factors” in Item 1A, and under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7 of our 2020 Form 10-K, those appearing under the heading “Risk Factors” in Part II, Item 1A of this Form 10-Q and under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in this Form 10-Q and our Form 10-Q filing for the quarter ended March 31, 2021, and those appearing in our other periodic filings with the SEC, and including risk factors associated with: the economic, health and business disruption caused by the COVID-19 pandemic; the impact of the COVID-19 pandemic on our clients and prospects, insurance costs and operations; the impact of the COVID-19 pandemic on the laws and regulations that impact our industry and clients; our ability to mitigate the business risks we face as a co-employer; our ability to manage unexpected changes in workers’ compensation and health insurance claims and costs by worksite employees; the effects of volatility in the financial and economic environment on the businesses that make up our client base and the concentration of our clients in certain geographies and industries; the impact of failures or limitations in the business systems we rely upon; the impact of our Recovery Credit program; adverse changes in our insurance coverage or our relationships with key insurance carriers; our ability to improve our technology to satisfy regulatory requirements and meet the expectations of our clients and manage client attrition; our ability to effectively integrate businesses we have acquired or may acquire in the future; our ability to effectively manage and improve our operational processes; our ability to attract and retain qualified personnel; the effects of increased competition and our ability to compete effectively; the impact on our business of cyber-attacks and security breaches; our ability to secure our information technology infrastructure and our confidential, sensitive and personal information; our ability to comply with constantly evolving data privacy and security laws; our ability to manage changes in, uncertainty regarding, or adverse application of the complex laws and regulations that govern our business; changing laws and regulations governing health insurance and employee benefits; our ability to be recognized as an employer of worksite employees under federal and state regulations; changes in the laws and regulations that govern what it means to be an employer, employee or independent contractor; our ability to comply with the laws and regulations that govern

4

FORWARD LOOKING STATEMENTS AND OTHER FINANCIAL INFORMATION Table of Contents

PEOs and other similar industries; the outcome of existing and future legal and tax proceedings; fluctuation in our results of operation and stock price due to factors outside of our control, such as the volume and severity of our workers’ compensation and health insurance claims and the amount and timing of our insurance costs, operating expenses and capital expenditure requirements; our ability to comply with the restrictions of our credit facility and meet our debt obligations; and the impact of concentrated ownership in our stock. Any of these factors could cause our actual results to differ materially from our anticipated results.

Forward-looking statements are not guarantees of future performance, but are based on management’s expectations as of the date of this Form 10-Q and assumptions that are inherently subject to uncertainties, risks and changes in circumstances that are difficult to predict. Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results, performance or achievements to be materially different from our current expectations and any past results, performance or achievements. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements.

The information provided in this Form 10-Q is based upon the facts and circumstances known as of the date of this Form 10-Q, and any forward-looking statements made by us in this Form 10-Q speak only as of the date of this Form 10-Q. We undertake no obligation to revise or update any of the information provided in this Form 10-Q, except as required by law.

The MD&A of this Form 10-Q includes references to our performance measures presented in conformity with GAAP and other non-GAAP financial measures that we use to manage our business, to make planning decisions, to allocate resources and to use as performance measures in our executive compensation plans. Refer to the Non-GAAP Financial Measures within our MD&A for definitions and reconciliations from GAAP measures.

Website Disclosures

We use our website (www.trinet.com) to announce material non-public information to the public and to comply with our disclosure obligations under Regulation Fair Disclosure (Reg FD). We also use our website to communicate with the public about our Company, our services, and other matters. Our SEC filings, press releases and recent public conference calls and webcasts can also be found on our website. The information we post on our website could be deemed to be material information under Reg FD. We encourage investors and others interested in our Company to review the information we post on our website. Information contained in or accessible through our website is not a part of this report.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Management’s Discussion and Analysis of Financial Condition and Results of Operations

Executive Summary

Overview

TriNet is a leading provider of HR expertise, payroll services, employee benefits and employment risk mitigation services for SMBs. We deliver a comprehensive suite of services that help our clients administer and manage various HR-related needs and functions, such as compensation and benefits, payroll processing, employee data, health insurance and workers' compensation programs, and other transactional HR needs using our technology platform and HR, benefits and compliance expertise. We empower SMBs to focus on what matters most - growing their business.

We leverage our scale and industry HR experience to deliver our service offerings for SMBs in specific industry verticals. We believe our vertical approach is a key differentiator for us and creates additional value for our clients driven by service offerings that are tailored to address industry-specific HR needs. We offer six industry-tailored vertical services: TriNet Financial Services, TriNet Life Sciences, TriNet Main Street, TriNet Nonprofit, TriNet Professional Services, and TriNet Technology.

Operational Highlights

Our consolidated results for the first half of 2021 reflect our continuing efforts to serve our existing clients throughout the COVID-19 pandemic and to support the economic recovery of SMBs. We will continue to monitor and evaluate developments relating to the COVID-19 pandemic and will work to respond appropriately to the impact of COVID-19 on our business and our clients' businesses.

During the first half of 2021 we:

•continued to grow total revenues,

•established our 2021 Credit Program to benefit our eligible clients, resulting in a $25 million reduction in insurance service revenues recognized in the first quarter of 2021,

•launched the 2nd annual TriNet PeopleForce, our virtual customer and prospect conference focused on business transformation, agility and innovation for small and medium-size businesses,

•introduced TriNet Financial Services Preferred, a new top-tier version of our HR solution that addresses the critical HR needs of firms in the financial services industry,

•launched 'Connect 360', an innovative service model intended to better meet client needs,

•completed a $500 million senior notes offering and repaid and terminated our outstanding term loan, and

•replaced our existing revolving credit facility with a new $500 million revolving credit facility to provide additional financial flexibility.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Performance Highlights

Our results for the second quarter and first half of 2021 when compared to the same periods of 2020 are noted below:

Q2 2021

	$1.1B			$121M			$91M
	Total revenues			Operating income			Net income
	16	%	increase	(30)	%	decrease	(28)	%	decrease
	$1.37			$104M
	Diluted EPS			Adjusted Net income *
	(27)	%	decrease	(24)	%	decrease
*	Non-GAAP measure. See definitions below under the heading "Non-GAAP Financial Measures".

Our results for WSEs in the second quarter of 2021 were:

332,719			339,935
Average WSEs			Total WSEs
6	%	increase	9	%	increase

We continued to achieve quarter-over-quarter revenue growth, reflecting our rate increases, higher Average WSEs and the $51 million decrease in the Recovery Credit recognized in 2021.

During the second quarter of 2021, our Average WSEs increased 6% and total WSEs increased 9%, primarily as a result of continued hiring in our installed base.

Medical services utilization continued to approach more typical levels in the second quarter of 2021, resulting in higher insurance costs compared to the same period in 2020, when stay-at-home orders and social distancing practices due to the COVID-19 pandemic caused a decrease in the medical services utilization.

In the second quarter of 2021, increases in insurance costs and operating expenses resulted in quarter-over-quarter decreases in our net income and Adjusted Net Income of (28)% and (24)%, respectively.

YTD 2021

	$2.2B			$259M			$192M
	Total revenues			Operating income			Net income
	8	%	increase	(12)	%	decrease	(12)	%	decrease
	$2.87			$215M
	Diluted EPS			Adjusted Net income *
	(8)	%	decrease	(9)	%	decrease
*	Non-GAAP measure. See definitions below under the heading "Non-GAAP Financial Measures".

Our result for Average WSEs in the first half of 2021 was:

327,007
Average WSEs
1	%	increase

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Results of Operations

The following table summarizes our results of operations for the second quarter and first half of 2021 when compared to the same periods of 2020. For details of the critical accounting judgments and estimates that could affect the Results of Operations, see the Critical Accounting Judgments and Estimates section within the MD&A in Item 7 of our 2020 Form 10-K.

	Three Months Ended June 30,								Six Months Ended June 30,
(in millions, except operating metrics data)	2021			2020			% Change		2021			2020			% Change
Income Statement Data:
Professional service revenues	$	156		$	121		29	%	$	309		$	277		12	%
Insurance service revenues	944			827			14		1,851			1,719			8
Total revenues	1,100			948			16		2,160			1,996			8
Insurance costs	798			613			30		1,549			1,378			12
Operating expenses	181			162			12		352			325			8
Total costs and operating expenses	979			775			26		1,901			1,703			12
Operating income	121			173			(30)		259			293			(12)
Other income (expense):
Interest expense, bank fees and other	(5)			(4)			25		(10)			(8)			25
Interest income	1			2			(50)		3			7			(57)
Income before provision for income taxes	117			171			(32)		252			292			(14)
Income taxes	26			45			(42)		60			75			(20)
Net income	$	91		$	126		(28)	%	$	192		$	217		(12)	%
Cash Flow Data:
Net cash used in operating activities									(190)			$	(130)		46
Net cash used in investing activities									(135)			(121)			12
Net cash provided by financing activities									43			122			(65)
Non-GAAP measures (1):
Net Service Revenues	$	302		$	335		(10)	%	$	611		$	618		(1)	%
Net Insurance Service Revenues	$	146		$	214		(32)		$	302		$	341		(11)
Net Insurance Margin	15		%	26		%	(42)		16		%	20		%	(20)
Adjusted EBITDA	$	154		199			(23)		$	317		$	344		(8)
Adjusted Net income	$	104		136			(24)		$	215		$	235		(9)
Corporate Operating Cash Flows									240			315			(24)
Operating Metrics:
Average WSEs	332,719			313,701			6	%	327,007			325,024			1	%
Total WSEs	339,935			313,104			9		339,935			313,104			9

(1)    Refer to Non-GAAP measures definitions and reconciliations from GAAP measures under the heading "Non-GAAP Financial Measures".

The following table summarizes our balance sheet data as of June 30, 2021 compared to December 31, 2020.

(in millions)	June 30, 2021		December 31, 2020		% Change
Balance Sheet Data:
Working capital	$	554	$	290	91	%
Total assets	2,978		3,043		(2)
Debt	495		370		34
Total stockholders’ equity	744		607		23

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Non-GAAP Financial Measures

In addition to financial measures presented in accordance with GAAP, we monitor other non-GAAP financial measures that we use to manage our business, to make planning decisions, to allocate resources and to use as performance measures in our executive compensation plan. These key financial measures provide an additional view of our operational performance over the long-term and provide information that we use to maintain and grow our business.

The presentation of these non-GAAP financial measures is used to enhance the understanding of certain aspects of our financial performance. It is not meant to be considered in isolation from, superior to, or as a substitute for the directly comparable financial measures prepared in accordance with GAAP. In subsequent filings, we will no longer provide Net Service Revenues, Net Insurance Service Revenues and Net Insurance Margin. Our consolidated statements of income and comprehensive income will continue to disclose total revenues, insurance service revenues and insurance cost, determined in accordance with GAAP, which are the key components of these non-GAAP measures.

Non-GAAP Measure	Definition	How We Use The Measure
Net Service Revenues	• Sum of professional service revenues and Net Insurance Service Revenues,  or total revenues less insurance costs.	• Provides a comparable basis of revenues on a net basis. Professional service revenues are presented net of client payroll costs whereas insurance service revenues are presented gross of insurance costs for financial reporting purposes. • Acts as the basis to allocate resources to different functions and evaluates the effectiveness of our business strategies by each business function. • Provides a measure, among others, used in the determination of incentive compensation for management.
Net Insurance Service Revenues	• Insurance service revenues less insurance costs.	• Is a component of Net Service Revenues. • Provides a comparable basis of revenues on a net basis. Professional service revenues are presented net of client payroll costs whereas insurance service revenues are presented gross of insurance costs for financial reporting purposes. Promotes an understanding of our insurance services business by evaluating insurance service revenues net of our WSE related costs which are substantially pass-through for the benefit of our WSEs. Under GAAP, insurance service revenues and costs are recorded gross as we have latitude in establishing the price, service and supplier specifications.
Net Insurance Margin	• Net Insurance Margin is the ratio of Net Insurance Services Revenues to insurance service revenues.	• Provides a comparable basis of Net Insurance Service Revenues relative to insurance service revenues. Promotes an understanding of our pricing to risk performance.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Adjusted EBITDA	• Net income, excluding the effects of: - income tax provision, - interest expense, bank fees and other, - depreciation, - amortization of intangible assets, and - stock based compensation expense.	• Provides period-to-period comparisons on a consistent basis and an understanding as to how our management evaluates the effectiveness of our business strategies by excluding certain non-cash charges such as depreciation and amortization, and stock-based compensation recognized based on the estimated fair values. We believe these charges are either not directly resulting from our core operations or not indicative of our ongoing operations. • Enhances comparisons to prior periods and, accordingly, facilitates the development of future projections and earnings growth prospects. • Provides a measure, among others, used in the determination of incentive compensation for management. • We also sometimes refer to Adjusted EBITDA margin, which is the ratio of Adjusted EBITDA to total revenues.
Adjusted Net Income	• Net income, excluding the effects of: - effective income tax rate (1), - stock based compensation, - amortization of intangible assets, - non-cash interest expense (2), and - the income tax effect (at our effective tax rate (1) of these pre-tax adjustments.	• Provides information to our stockholders and board of directors to understand how our management evaluates our business, to monitor and evaluate our operating results, and analyze profitability of our ongoing operations and trends on a consistent basis by excluding certain non-cash charges.
Corporate Operating Cash Flows	• Net cash provided by (used in) operating activities, excluding the effects of: - Assets associated with WSEs (accounts receivable, unbilled revenue, prepaid expenses and other current assets) and - Liabilities associated with WSEs (client deposits and other client liabilities, accrued wages, payroll tax liabilities and other payroll withholdings, accrued health benefit costs, accrued workers' compensation costs, insurance premiums and other payables, and other current liabilities).	• Provides information that our stockholders and management can use to evaluate our cash flows from operations independent of the current assets and liabilities associated with our WSEs. • Enhances comparisons to prior periods and, accordingly, used as a liquidity measure to manage liquidity between corporate and WSE related activities, and to help determine and plan our cash flow and capital strategies.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

(1)    Non-GAAP effective tax rate is 25.5% for 2021 and 2020, which excludes the income tax impact from stock-based compensation, changes in uncertain tax positions and nonrecurring benefits or expenses from federal legislative changes.

(2)    Non-cash interest expense represents amortization and write-off of our debt issuance costs and loss on derivative.

Reconciliation of GAAP to Non-GAAP Measures

The table below presents a reconciliation of Total revenues to Net Service Revenues:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Total revenues	$	1,100	$	948	$	2,160	$	1,996
Less: Insurance costs	798		613		1,549		1,378
Net Service Revenues	$	302	$	335	$	611	$	618

The table below presents a reconciliation of Insurance service revenues to Net Insurance Service Revenues:

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2021			2020			2021			2020
Insurance service revenues	$	944		$	827		$	1,851		$	1,719
Less: Insurance costs	798			613			1,549			1,378
Net Insurance Service Revenues	$	146		$	214		$	302		$	341
Net Insurance Margin	15		%	26		%	16		%	20		%

The table below presents a reconciliation of Net income to Adjusted EBITDA:

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2021			2020			2021			2020
Net income	$	91		$	126		$	192		$	217
Provision for income taxes	26			45			60			75
Stock based compensation	13			11			24			20
Interest expense, bank fees and other	5			4			10			8
Depreciation and amortization of intangible assets ¹	19			13			31			24
Adjusted EBITDA	$	154		$	199		$	317		$	344
Adjusted EBITDA Margin	14.0		%	21.0		%	14.7		%	17.2		%

(1)    Amount includes impairment of customer relationship intangibles and amortization of cloud computing arrangements included in operating expenses.

The table below presents a reconciliation of Net income to Adjusted Net Income:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Net income	$	91	$	126	$	192	$	217
Effective income tax rate adjustment	(4)		1		(4)		1
Stock based compensation	13		11		24		20
Amortization of intangible assets ¹	9		1		10		3
Non-cash interest expense	1		—		3		—
Income tax impact of pre-tax adjustments	(6)		(3)		(10)		(6)
Adjusted Net Income	$	104	$	136	$	215	$	235

(1)    Amount includes impairment of customer relationship intangibles.

The table below presents a reconciliation of net cash (used in) provided by operating activities to Corporate

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Operating Cash Flows:

	Six Months Ended June 30,
(in millions)	2021		2020
Net cash used in operating activities	$	(190)	$	(130)
Less: Change in WSE related other current assets	(96)		(74)
Less: Change in WSE related liabilities	(334)		(371)
Net cash used in operating activities - WSE	$	(430)	$	(445)
Net cash provided by operating activities - Corporate	$	240	$	315

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Operating Metrics

Worksite Employees (WSE)

Average WSE growth is a volume measure we use to monitor the performance of our business. Average WSEs increased 6% when comparing the second quarter of 2021 to the same period in 2020, primarily due to increased hiring in our installed base across all verticals, led by our Technology vertical. Our Recovery Credit program was designed to assist in the economic recovery of SMBs and to promote client loyalty and incentivize client retention. In the second quarter and first half of 2021, most of the hiring in our installed based was from clients that benefited from this program.

Total WSEs can be used to estimate our beginning WSEs for the next period and, as a result, can be used as an indicator of our potential future success in growing our business and retaining clients.

Anticipated revenues for future periods can diverge from the revenue expectation derived from Average WSEs or Total WSEs due to pricing differences across our HR solutions and services and the degree to which clients and WSEs elect to participate in our solutions during future periods. In addition to focusing on growing our Average WSE and Total WSE counts, we also focus on pricing strategies, benefit participation and service differentiation to expand our revenue opportunities. We report the impact of client and WSE participation differences as a change in mix.

In addition to focusing on retaining and growing our WSE base, we continue to review acquisition opportunities that would add appropriately to our scale. We continue to invest in efforts intended to enhance client experiences and manage attrition, through operational and process improvements.

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Total Revenues

Our revenues consist of professional service revenues (PSR) and insurance service revenues (ISR). PSR represents fees charged to clients for processing payroll-related transactions on behalf of our clients, access to our HR expertise, employment and benefit law compliance services, and other HR-related services. ISR consists of insurance-related billings and administrative fees collected from clients and withheld from WSEs for workers' compensation insurance and health benefit insurance plans provided by third-party insurance carriers.

In April 2020, we created our Recovery Credit program to assist in the economic recovery of our existing SMB clients and enhance our ability to retain these clients. Eligible clients will receive one-time reductions against fees for future services, accounted for as a discount, to be received over the following 12 months. We recognized a reduction in total revenues of $5 million in the second quarter of 2021 for the Recovery Credit, compared to a reduction of $56 million recognized in the second quarter of 2020.

The reduction in revenue is estimated each period based on the timing of when eligible clients will receive the Recovery Credit and the ultimate amount of the total Recovery Credit. As of June 30, 2021, we have fully recognized the $145 million maximum amount for the Recovery Credit and no further reduction to revenue will be recognized.

We recognized a $25 million reduction to revenue under our 2021 Credit Program in the first quarter of 2021. This amount reflects estimated credits that will be paid to eligible clients under this program, based on the expected performance of our health insurance costs in 2021, and is currently limited to $25 million. These credits are recorded as a reduction to ISR and are payable within 12 months to eligible clients as of March 31, 2021. To the extent we experience higher than expected health insurance costs during the remainder of 2021, this estimate may be reduced. There was no change in this estimate in the second quarter.

Monthly total revenues per Average WSE is a measure we use to monitor the success of our pricing strategies. This measure increased 9% during the second quarter of 2021 compared to the same period in 2020.

We also use the following measures to further analyze changes in total revenue:

•Volume - the percentage change in period over period Average WSEs,

•Rate - the combined weighted average percentage changes in service fees for each vertical service and changes in service fees associated with each insurance service offering,

•Mix - the change in composition of Average WSEs within our verticals combined with the composition of our enrolled WSEs within our insurance service offerings, and

•Credit - the weighted average amounts recognized for the Recovery Credit and 2021 Credit programs.

PSR

ISR - % represents proportion of ISR to total revenues

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The growth in total revenues for the quarter was primarily driven by higher Average WSEs and growth in rate, combined with the $51 million decrease in the Recovery Credit recognized in 2021. The growth in total revenues for the first half of 2021 was primarily driven by higher Average WSEs and growth in rate, combined with the $39 million decrease in the Recovery Credit recognized in 2021. This was partially offset by the $25 million reduction in revenue recognized for the 2021 Credit Program in the first quarter of 2021.

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Operating Income

Our operating income consists of total revenues less insurance costs and OE. Our insurance costs include insurance premiums for coverage provided by insurance carriers, reimbursement of claims payments made by insurance carriers or third-party administrators, and changes in accrued costs related to contractual obligations with our workers' compensation and health benefit carriers. Our OE consists primarily of our corporate employees' compensation related expenses, which includes payroll, payroll taxes, SBC, bonuses, commissions and other payroll-and benefits-related costs.

The table below provides a view of the changes in components of operating income for the second quarter and first half of 2021, as compared to the same periods in 2020.

(in millions)
$173		Second Quarter 2020 Operating Income
	+152	Higher total revenues primarily driven by higher Average WSEs, rate increases and the $51 million decrease in the Recovery Credit recognized.
	-185	Higher insurance costs primarily as a result of more typical medical services utilization, compared to the prior year period, which had lower than typical medical services utilization due to stay-at-home orders and social distancing practices due to the COVID-19 pandemic.
	-19	Higher OE primarily as a result of increased payroll tax compliance costs and D&A, together with higher compensation and consulting expenses to support initiatives to improve client experience, enhance service offerings, and improve processes.
$121		Second Quarter 2021 Operating Income

(in millions)
$293		YTD 2020 Operating Income
	+164	Higher total revenues primarily driven by higher Average WSEs, rate increases and the $39 million decrease in the Recovery Credit recognized. This was partially offset by the $25 million reduction in revenue recognized for the 2021 Credit Program in the first quarter of 2021.
	-171	Higher insurance costs primarily as a result of more typical medical services utilization, compared to the prior year period, which had lower than typical medical services utilization due to stay-at-home orders and social distancing practices due to the COVID-19 pandemic.
	-27	Higher OE primarily as a result of increased payroll tax compliance costs, technology services and D&A, together with higher compensation and consulting expenses to support initiatives to improve client experience, enhance service offerings, and improve processes.
$259		YTD 2021 Operating Income

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Professional Service Revenues

Our clients are billed on a fee per WSE per month per transaction. Our vertical approach provides us the flexibility to offer our clients in different industries with varied services at different prices, which we believe potentially reduces the value of solely using Average WSE and Total WSE counts as indicators of future potential revenue performance.

We also analyze changes in PSR with the following measures:

•Volume - the percentage change in period over period Average WSEs,

•Rate - the weighted average percentage change in fees for each vertical,

•Mix - the change in composition of Average WSEs across our verticals, and

•Recovery Credit - the weighted average amounts recognized for the Recovery Credit program.

The growth in PSR for the quarter was driven by higher Average WSEs, a growth in rate and the decrease in the Recovery Credit recognized. The growth in rate was attributed to increased payroll activity and price increases, weighted to our smaller customers. We continued to experience a favorable change in our vertical mix of WSEs, as a return to hiring in certain industries was partially offset by attrition in other industries. The growth in PSR for the first half of 2021 was primarily driven by rate growth, favorable mix changes and the decrease in the Recovery Credit recognized.

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Insurance Service Revenues

ISR consists of insurance services-related billings and administrative fees collected from clients and withheld from WSE payroll for health benefits and workers' compensation insurance provided by third-party insurance carriers.

We use the following measures to analyze changes in ISR:

•Volume - the percentage change in period over period Average WSEs,

•Rate - the weighted average percentage change in fees associated with each of our insurance service offerings,

•Mix - all other changes including the composition of our enrolled WSEs within our insurance service offerings (health plan enrollment), and

•Credit - the weighted average amounts recognized for the Recovery Credit and 2021 Credit programs.

The growth in ISR for the quarter and first half of 2021 was primarily driven by higher Average WSEs, rate increases and the decrease in the Recovery Credit recognized. The growth in the first half of 2021 was partially offset by the $25 million reduction in revenue recognized in the first quarter for the 2021 Credit Program.

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Insurance Costs

Insurance costs include insurance premiums for coverage provided by insurance carriers, payments for claims costs and other risk management services, reimbursement of claims payments made by insurance carriers or third-party administrators below a predefined deductible limit, and changes in accrued costs related to contractual obligations with our workers' compensation and health benefit carriers.

We use the following measures to analyze changes in insurance costs:

•Volume - the percentage change in period over period Average WSEs,

•Rate - the weighted average percentage change in cost trend associated with each of our insurance service offerings, and

•Mix - all other changes including the composition of our enrolled WSEs within our insurance service offerings (health plan enrollment).

During the second quarter and first half of 2020, stay-at-home orders and social distancing practices due to the COVID-19 pandemic decreased the medical services utilization as enrollees deferred or cancelled elective procedures and reduced outpatient medical, dental and vision services. Medical services utilization continued to approach more typical levels in the second quarter and first half of 2021, though we continue to experience higher than normal volatility and variability in the amounts that we pay for group health insurance expenses incurred by WSEs within our deductible layer under our risk-based health insurance policies.

The increase in medical services utilization in 2021, combined with COVID-19 testing, treatment and vaccination costs, caused the increase in rate in the second quarter and first half of 2021. This was partially offset by larger positive claims development as our accrued health costs as of March 31, 2021 and December 31, 2020 were paid during the first half of 2021.

We believe that the ratio of insurance costs to insurance services revenue promotes an understanding of our insurance cost trends and our ability to align our relative pricing to risk performance. The ratio of insurance costs to insurance service revenues increased to 85% for the second quarter of 2021, compared to 74% for the same period

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in 2020. For the first half of 2021, the ratio of insurance costs to insurance service revenues increased to 84% compared to 80% for the first half of 2020. The higher ratio for both the second quarter and first half of 2021 was due to the increase in rate for insurance costs, resulting from higher medical services utilization, exceeding the increase in rate for ISR.

Operating Expenses

OE includes cost of providing services (COPS), sales and marketing (S&M), general and administrative (G&A), systems development and programming (SD&P), and depreciation and amortization expenses (D&A).

We had approximately 2,700 corporate employees as of June 30, 2021 in 15 offices across the U.S. Our corporate employees' compensation-related expenses represent a majority of our operating expenses. Compensation costs for our corporate employees include payroll, payroll taxes, SBC, bonuses, commissions and other payroll- and benefits-related costs. Compensation-related expense represented 61% and 67% of our OE in the second quarters of 2021 and 2020 and 63% and 65% in the first half of 2021 and 2020, respectively.

During the second quarter and the first half of 2021, we experienced OE increases of 12% and 8%, respectively, when compared to the same periods in 2020. During the second quarter and the first half of 2021, the percent of OE to total revenues was 16%, consistent with the same periods in 2020.

% represents portion of compensation related expense included in operating expenses

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

We analyze and present our OE based upon the business functions COPS, S&M, G&A and SD&P and D&A. The charts below provide a view of the expenses of the business functions. Dollars are presented in millions and percentages represent year-over-year change.

(in millions)
$162		Q2 2020 Operating Expenses
	+6	COPS increased, driven primarily by increased compensation, partially offset by a decrease in rent expense.
	+5	G&A increased, driven primarily by increased payroll tax compliance costs and technology services expenses to improve our client experience, our systems and processes, and to enhance our service offerings.
	+2	SD&P increased, driven primarily by higher consulting expenses as we continue to work to improve our client experience and our systems and processes.
	+6	D&A increased, driven primarily by the impairment of customer relationship intangibles.
	$181	Q2 2021 Operating Expenses

(in millions)
$325		YTD 2020 Operating Expenses
	+6	COPS increased, driven primarily by increased compensation, partially offset by decreased consulting and rent expenses.
	+8	G&A increased, driven primarily by increased compensation, payroll tax compliance costs and technology services expenses.
	+6	SD&P increased, driven primarily by increased compensation and consulting expenses as we continue to work to improve our client experience and our systems and processes.
	+7	D&A increased, driven primarily by the impairment of customer relationship intangibles.
$352		YTD 2021 Operating Expenses

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

The primary drivers to the changes in our OE are presented below:

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Other Income (Expense)

Other income (expense) consists primarily of interest and dividend income from investments, interest expense under our previous credit facility and interest on our 3.50% Senior Notes due 2029 (our 2029 Notes) issued in February 2021.

Interest income decreased primarily due to lower average market interest rates. Interest expense, bank fees and other increased due to the higher interest rate on our 2029 Notes and costs incurred in the first quarter due to the early repayment and termination of our floating rate debt.

Income Taxes

Our effective tax rate (ETR) was 22% and 26% for the second quarter of 2021 and 2020, respectively, and 24% and 26% for the first half of 2021 and 2020, respectively. The decrease when comparing the quarter and year to date rates for 2021 with the same periods in 2020 was primarily due to benefits associated with a favorable adjustment of our previously disputed receivable from the IRS and an increase in tax benefits related to stock-based compensation.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Liquidity and Capital Resources

Liquidity

Liquidity is a measure of our ability to access sufficient cash flows to meet the short-term and long-term cash requirements of our business operations. We believe that we have sufficient liquidity and capital resources to satisfy future requirements and meet our obligations to our clients, creditors and debt holders.

Included in our balance sheets are assets and liabilities resulting from transactions directly or indirectly associated with WSEs, including payroll and related taxes and withholdings, our sponsored workers' compensation and health insurance programs, and other benefit programs. Although we are not subject to regulatory restrictions that require us to do so, we distinguish and manage our corporate assets and liabilities separately from those current assets and liabilities held by us to satisfy our employer obligations associated with our WSEs as follows:

	June 30, 2021						December 31, 2020
(in millions)	Corporate		WSE		Total		Corporate		WSE		Total
Current assets:
Cash and cash equivalents	$	464	$	—	$	464	$	301	$	—	$	301
Investments	131		—		131		57		—		57
Restricted cash, cash equivalents and investments	15		943		958		15		1,373		1,388
Other current assets	80		451		531		59		355		414
Total current assets	$	690	$	1,394	$	2,084	$	432	$	1,728	$	2,160
Total current liabilities	$	136	$	1,394	$	1,530	$	142	$	1,728	$	1,870
Working capital	$	554	$	—	$	554	$	290	$	—	$	290

Working capital for WSEs related activities

We designate funds to ensure that we have adequate current assets to satisfy our current obligations associated with WSEs, the Recovery Credit liability and 2021 Credit Program liability. We expect the Recovery Credit and 2021 Credit Program aggregate liability of $88 million as of June 30, 2021 to be settled over the following 12 months. We manage our WSE payroll and benefits obligations through collections of payments from our clients which generally occurs two to three days in advance of client payroll dates. We regularly review our short-term obligations associated with our WSEs (such as payroll and related taxes, insurance premium and claim payments) and designate funds required to fulfill these short-term obligations, which we refer to as PFC. PFC is included in current assets as restricted cash, cash equivalents and investments.

We manage our sponsored benefit and workers' compensation insurance obligations by maintaining collateral funds in restricted cash, cash equivalents and investments. These collateral amounts are generally determined at the beginning of each plan year and we may be required by our insurance carriers to adjust our collateral balances when facts and circumstances change. We regularly review our collateral balances with our insurance carriers and anticipate funding further collateral in the future based upon our capital requirements. We classify our restricted cash, cash equivalents and investments as current and noncurrent assets to match against the anticipated timing of payments to carriers.

Working capital for corporate purposes

Corporate working capital as of June 30, 2021 increased $264 million from December 31, 2020, primarily driven by a $163 million increase in corporate unrestricted cash and cash equivalents and a $74 million increase in corporate investments.

We use our available cash and cash equivalents to satisfy our operational and regulatory requirements and to fund capital expenditures. We believe that we can meet our present and reasonably foreseeable operating cash needs and future commitments through existing liquid assets, continuing cash flows from corporate operating activities and the potential issuance of debt or equity securities. We believe our existing corporate cash and cash equivalents and positive working capital will be sufficient to meet our working capital expenditure needs for at least the next twelve months.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Cash Flows

The following table presents our cash flow activities for the stated periods:

	Six Months Ended June 30,
(in millions)	2021						2020
	Corporate		WSE		Total		Corporate		WSE		Total
Net cash provided by (used in):
Operating activities	$	240	$	(430)	$	(190)	$	315	$	(445)	$	(130)
Investing activities	(128)		(7)		(135)		(35)		(86)		(121)
Financing activities	43		—		43		122		—		122
Net increase (decrease) in cash and cash equivalents, unrestricted and restricted	$	155	$	(437)	$	(282)	$	402	$	(531)	$	(129)
Cash and cash equivalents, unrestricted and restricted:
Beginning of period	352		1,291		1,643		291		1,165		1,456
End of period	$	507	$	854	$	1,361	$	693	$	634	$	1,327
Net increase (decrease) in cash and cash equivalents:
Unrestricted	$	163	$	—	$	163	$	424	$	—	$	424
Restricted	(8)		(437)		(445)		(22)		(531)		(553)

Operating Activities

Components of net cash provided by operating activities are as follows:

	Six Months Ended June 30,
(in millions)	2021		2020
Net cash used in operating activities	$	(190)	$	(130)
Net cash used in operating activities - WSE	(430)		$	(445)
Net cash provided by operating activities - Corporate	240		315

The year-over-year change in net cash used in operating activities for WSE purposes was primarily driven by timing of client payments, payments of payroll and payroll taxes, settlement of the Recovery Credit, and insurance claim activities. We expect the changes in restricted cash and cash equivalents to correspond to WSE cash provided by (or used in) operations as we manage our obligations associated with WSEs through restricted cash.

Our corporate operating cash flows in the first half of 2021 decreased, when compared to the same period in 2020, due to the decrease in our net income and the timing of our payments of corporate obligations.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Investing Activities

Cash used in investing activities for the periods presented below primarily consisted of purchases of investments and capital expenditures, partially offset by proceeds from the sale and maturity of investments.

	Six Months Ended June 30,
(in millions)	2021		2020
Investments:
Purchases of investments	(267)		(222)
Proceeds from sale and maturity of investments	149		119
Cash used in investments	$	(118)	$	(103)
Capital expenditures:
Software and hardware	$	(14)	$	(17)
Office furniture, equipment and leasehold improvements	(3)		(1)
Cash used in capital expenditures	$	(17)	$	(18)
Cash used in investing activities	$	(135)	$	(121)

Investments

We invest a portion of available cash in investment-grade securities with effective maturities less than five years that are classified on our balance sheets as investments.

We also invest funds held as collateral to satisfy our long-term obligation towards workers' compensation liabilities. These investments are classified on our balance sheets as restricted cash, cash equivalents and investments. We review the amount and the anticipated holding period of these investments regularly in conjunction with our estimated long-term workers' compensation liabilities and anticipated claims payment trend. At June 30, 2021, our investments had a weighted average duration of less than two years and an average S&P credit rating of AA.

As of June 30, 2021, we held approximately $1.9 billion in restricted and unrestricted cash, cash equivalents and investments, of which $464 million was unrestricted cash and cash equivalents and $325 million was unrestricted investments. Refer to Note 2 in the condensed consolidated financial statements and related notes included in this Form 10-Q.

Capital Expenditures

During the first half of 2021 and 2020, we continued to make investments in software and hardware and we enhanced our existing service offerings and technology platform. We expect capital investments in our software and hardware to continue in the future.

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

Financing Activities

Net cash provided by financing activities in the first half of June 30, 2021 and 2020 consisted of our debt and equity-related activities.

	Six Months Ended June 30,
(in millions)	2021		2020
Financing activities
Repurchase of common stock, net of issuance	$	(78)	$	(101)
Draw down from revolving credit facility	—		234
Payment of long-term financing fees	(2)		—
Payment of debt issuance costs	(7)		—
Proceeds from issuance of 2029 Notes	500		—
Repayment of borrowings	(370)		(11)
Cash provided by financing activities	$	43	$	122

During the first half of June 30, 2021, we repurchased 925,251 shares of our common stock for approximately $74 million through our stock repurchase program. As of June 30, 2021, approximately $284 million remained available for repurchase under all authorizations by our board of directors. We plan to use current cash and cash generated from ongoing operating activities to fund this stock repurchase program.

In February 2021, we issued $500 million aggregate principal amount of our 2029 Notes. $370 million of the proceeds was used to repay and terminate the 2018 Term Loan A. The remaining funds will be used for general corporate purposes. Refer to Note 6 in the condensed consolidated financial statements and related notes included in this Form 10-Q for further information.

In February 2021, concurrently with the closing of the 2029 Notes offering, we entered into a new $500 million revolving credit facility under a new credit agreement (our 2021 Credit Agreement). The 2021 Credit Agreement includes a $100 million letter of credit sub-facility and a $40 million swingline sub-facility. We also have the option to incur incremental credit facilities of up to the greater of $450 million and 100% of EBITDA for the most recent period of four fiscal quarters for which financial statements have been delivered. Such incremental facilities are subject to obtaining additional commitments from lenders.

Capital Resources

Sources of Funds

Our principal source of liquidity for operations is derived from cash provided by operating activities. We rely on cash provided by operating activities to meet our short-term liquidity requirements, which primarily relate to the payment of corporate payroll and other operating costs, and capital expenditures. Our cash flow related to WSE payroll and benefits is generally matched by advance collection from our clients. To minimize the credit risk associated with remitting the payroll and associated taxes and benefits costs, we require clients to prefund the payroll and related payroll taxes and benefits costs.

We believe that we can meet our present and reasonably foreseeable operating cash needs and future commitments through existing liquid assets and continuing cash flows from corporate operating activities.

Covenants

The Indenture governing the 2029 Notes includes restrictive covenants limiting our ability to: (i) create liens on certain assets to secure debt; (ii) grant a subsidiary guarantee of certain debt without also providing a guarantee of the 2029 Notes; and (iii) consolidate or merge with or into, or sell or otherwise dispose of all or substantially all of our assets to, another person, subject, in each case, to certain customary exceptions.

The 2021 Credit Agreement includes negative covenants that limit our ability to incur indebtedness and liens, sell assets and make restricted payments, including dividends and investments, subject to certain exceptions. In addition, the 2021 Credit Agreement also contains other customary affirmative and negative covenants and

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MANAGEMENT'S DISCUSSION AND ANALYSIS Table of Contents

customary events of default. The 2021 Credit Agreement also contains a financial covenant that requires the Company to maintain certain maximum total net leverage ratios.

We were in compliance with all financial covenants under our 2021 Credit Agreement at June 30, 2021.

Critical Accounting Policies, Estimates and Judgments

There have been no material changes to our critical accounting policies as discussed in our 2020 Form 10-K.

Recent Accounting Pronouncements

There have been no material changes to our recent accounting pronouncements as discussed in our 2020 Form 10-K.

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QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK AND CONTROLS AND PROCEDURES Table of Contents

Quantitative and Qualitative Disclosures About Market Risk

Our exposure to changes in interest rates relates primarily to our investment portfolio. Changes in U.S. interest rates affect the interest earned on the Company's cash, cash equivalents and the fair value of our investments.

Our cash equivalents consist primarily of money market mutual funds, which are not significantly exposed to interest rate risk. Our investments are subject to interest rate risk because these securities generally include a fixed interest rate. As a result, the market values of these securities are affected by changes in prevailing interest rates. We attempt to limit our exposure to interest rate risk and credit risk by investing in instruments that meet the minimum credit quality, liquidity, diversification and other requirements of our investment policy. Our investments consist of liquid, investment-grade securities. The risk of rate changes on investment balances was not material at June 30, 2021 and December 31, 2020.

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QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK AND CONTROLS AND PROCEDURES Table of Contents

Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We have, with the participation of our Chief Executive Officer (CEO) and our Chief Financial Officer (CFO), evaluated the effectiveness of our disclosure controls and procedures as of June 30, 2021, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act.

Based on the evaluation of our disclosure controls and procedures as of June 30, 2021, our CEO and CFO have concluded that the Company’s disclosure controls and procedures were effective as of such date in ensuring that (i) information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including the CEO and CFO, to allow timely decisions regarding required disclosure and (ii) such information is recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms.

We have concluded that the condensed consolidated financial statements included in this Quarterly Report on Form 10-Q fairly present, in all material respects, our financial position, results of operations and cash flows for the periods presented in conformity with GAAP.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting identified in connection with the evaluation required by Rule 13a-15(d) and 15d-15(d) of the Exchange Act that occurred during the quarter ended June 30, 2021, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls and Procedures

In designing and evaluating the disclosure controls and procedures, management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives. In addition, the design of disclosure controls and procedures must reflect the fact that there are resource constraints and that management is required to apply judgment in evaluating the benefits of possible controls and procedures relative to their costs.

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FINANCIAL STATEMENTS Table of Contents

TRINET GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions except per share data)	2021		2020		2021		2020
Professional service revenues	$	156	$	121	$	309	$	277
Insurance service revenues	944		827		1,851		1,719
Total revenues	1,100		948		2,160		1,996
Insurance costs	798		613		1,549		1,378
Cost of providing services	66		60		130		124
Sales and marketing	45		45		91		91
General and administrative	40		35		76		68
Systems development and programming	11		9		24		18
Depreciation and amortization of intangible assets	19		13		31		24
Total costs and operating expenses	979		775		1,901		1,703
Operating income	121		173		259		293
Other income (expense):
Interest expense, bank fees and other	(5)		(4)		(10)		(8)
Interest income	1		2		3		7
Income before provision for income taxes	117		171		252		292
Income taxes	26		45		60		75
Net income	$	91	$	126	$	192	$	217
Other comprehensive (loss) income, net of income taxes	—		3		(1)		5
Comprehensive income	$	91	$	129	$	191	$	222
Net income per share:
Basic	$	1.38	$	1.88	$	2.91	$	3.16
Diluted	$	1.37	$	1.87	$	2.87	$	3.13
Weighted average shares:
Basic	66		67		66		69
Diluted	67		68		67		70

 See accompanying notes.

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FINANCIAL STATEMENTS Table of Contents

TRINET GROUP, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited)

	June 30,		December 31,
(in millions, except share and per share data)	2021		2020
ASSETS
Current assets:
Cash and cash equivalents	$	464	$	301
Investments	131		57
Restricted cash, cash equivalents and investments	958		1,388
Accounts receivable, net	8		18
Unbilled revenue, net	346		246
Prepaid expenses, net	68		63
Other current assets	109		87
Total current assets	2,084		2,160
Restricted cash, cash equivalents and investments, noncurrent	179		210
Investments, noncurrent	194		138
Property, equipment and software, net	76		79
Operating lease right-of-use asset	48		51
Goodwill	294		294
Other intangible assets, net	9		18
Other assets	94		93
Total assets	$	2,978	$	3,043
Liabilities and stockholders' equity
Current liabilities:
Accounts payable and other current liabilities	$	81	$	50
Long-term debt	—		22
Client deposits and other client liabilities	132		134
Accrued wages	506		309
Accrued health insurance costs, net	155		172
Accrued workers' compensation costs, net	57		59
Payroll tax liabilities and other payroll withholdings	572		1,095
Operating lease liabilities	12		11
Insurance premiums and other payables	15		18
Total current liabilities	1,530		1,870
Long-term debt, noncurrent	495		348
Accrued workers' compensation costs, noncurrent, net	133		138
Deferred taxes	21		22
Operating lease liabilities, noncurrent	46		49
Other non-current liabilities	9		9
Total liabilities	2,234		2,436
Commitments and contingencies (see Note 7)
Stockholders' equity:
Preferred stock	—		—
($0.000025 par value per share; 20,000,000 shares authorized; no shares issued or outstanding at June 30, 2021 and December 31, 2020)
Common stock and additional paid-in capital	776		747
($0.000025 par value per share; 750,000,000 shares authorized; 65,864,116 and 66,456,663 shares issued and outstanding at June 30, 2021 and December 31, 2020, respectively)
Accumulated deficit	(35)		(144)
Accumulated other comprehensive income	3		4
Total stockholders' equity	744		607
Total liabilities & stockholders' equity	$	2,978	$	3,043

See accompanying notes.

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FINANCIAL STATEMENTS Table of Contents

TRINET GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited)

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Total Stockholders' Equity, beginning balance	$	653	$	533	$	607	$	475
Common Stock and Additional Paid-In Capital
Beginning balance	758		703		747		694
Issuance of common stock for employee stock purchase plan	5		5		5		5
Stock based compensation expense	13		11		24		20
Ending balance	776		719		776		719
Accumulated Deficit
Beginning balance	(108)		(172)		(144)		(219)
Net income	91		126		192		217
Repurchase of common stock	(14)		(60)		(74)		(100)
Awards effectively repurchased for required employee withholding taxes	(4)		(2)		(9)		(6)
Ending balance	(35)		(108)		(35)		(108)
Accumulated Other Comprehensive Income
Beginning balance	3		2		4		—
Other comprehensive (loss) income	—		3		(1)		5
Ending balance	3		5		3		5
Total Stockholders' Equity, ending balance	$	744	$	616	$	744	$	616

See accompanying notes.

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TRINET GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)

	Six Months Ended June 30,
(in millions)	2021		2020
Operating activities
Net income	$	192	$	217
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	45		32
Amortization of ROU	6		8
Accretion of discount rate on lease liabilities	1		1
Amortization of premium of investments	1		—
Stock based compensation	24		20
Changes in operating assets and liabilities:
Accounts receivable, net	10		4
Unbilled revenue, net	(100)		(67)
Prepaid expenses, net	(5)		2
Accounts payable and other current liabilities	29		69
Client deposits and other client liabilities	(2)		102
Accrued wages	197		20
Accrued health insurance costs, net	(17)		(22)
Accrued workers' compensation costs, net	(7)		(2)
Payroll taxes payable and other payroll withholdings	(523)		(475)
Operating lease liabilities	(6)		(10)
Other assets	(32)		(32)
Other liabilities	(3)		3
Net cash used in operating activities	(190)		(130)
Investing activities
Purchases of marketable securities	(267)		(222)
Proceeds from sale and maturity of marketable securities	149		119
Acquisitions of property and equipment	(17)		(18)
Net cash used in investing activities	(135)		(121)
Financing activities
Repurchase of common stock	(74)		(100)
Proceeds from issuance of common stock	5		5
Awards effectively repurchased for required employee withholding taxes	(9)		(6)
Proceeds from revolving credit agreement borrowings	—		234
Payment of long-term financing fees	(2)		—
Payment of debt issuance costs	(7)		—
Proceeds from issuance of 2029 Notes	500		—
Repayment of debt	(370)		(11)
Net cash provided by financing activities	43		122
Net decrease in cash and cash equivalents, unrestricted and restricted	(282)		(129)
Cash and cash equivalents, unrestricted and restricted:
Beginning of period	1,643		1,456
End of period	$	1,361	$	1,327
Supplemental disclosures of cash flow information
Interest paid	$	2	$	7
Income taxes paid, net	45		6
Supplemental schedule of noncash investing and financing activities
Payable for purchase of property and equipment	$	2	$	2

See accompanying notes.

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FINANCIAL STATEMENTS Table of Contents

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

NOTE 1. DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES

Description of Business

TriNet Group, Inc. (TriNet, or the Company, we, our and us), a professional employer organization, provides comprehensive human resources solutions for small and medium-size businesses under a co-employment model. These HR solutions include multi-state payroll processing and tax administration, employee benefits programs, including health insurance and retirement plans, workers' compensation insurance and claims management, employment and benefit law compliance, and other HR-related services. Through the co-employment relationship, we are the employer of record for certain employment-related administrative and regulatory purposes for the worksite employees (WSEs), including:

•compensation through wages and salaries,

•certain employer payroll-related tax payments,

•employee payroll-related tax withholdings and payments,

•employee benefit programs, including health and life insurance, and others, and

•workers' compensation coverage.

Our clients are responsible for the day-to-day job responsibilities of the WSEs.

We operate in one reportable segment. All of our service revenues are generated from external clients. Less than 1% of our revenue is generated outside of the U.S.

Basis of Presentation

These unaudited condensed consolidated financial statements and accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial reporting and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Rules and Regulations of the Securities and Exchange Commission. Certain information and note disclosures included in our annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, that are normal and recurring in nature, necessary for fair financial statement presentation. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the operating results anticipated for the full year. These financial statements should be read in conjunction with the audited Consolidated Financial Statements included in Part II, Item 8. Financial Statements and Supplementary Data of our Annual Report on Form 10-K for the year ended December 31, 2020 (2020 Form 10-K).

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect certain reported amounts and related disclosures.

These estimates are based on historical experience and on various other assumptions that we believe to be reasonable from the facts available to us. Some of the assumptions are highly uncertain at the time of estimation. To the extent actual experience differs from the assumptions used, our consolidated financial statements could be materially affected.

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FINANCIAL STATEMENTS Table of Contents

Revenue Recognition

Performance Obligations

In April 2020, we created our Recovery Credit program to assist in the economic recovery of our existing SMB clients and enhance our ability to retain these clients. Under this one-time program eligible clients will receive reductions against fees for future services, accounted for as a discount, over the following 12 months. This option to renew future services at a discount represents a material right and is accounted for as a performance obligation (Recovery Credit). This performance obligation will be satisfied when the clients have successfully renewed the services contracts and the future services are transferred. 

The consideration we receive that is allocated to this performance obligation is deferred as an unsatisfied performance obligation and is included in client deposits and other client liabilities on the balance sheet. The amount of consideration we defer each period is dependent on the timing of when eligible clients will receive the Recovery Credit, which is subject to a limit on the total amount of $145 million.

The change in the balance of the Recovery Credit unsatisfied performance obligation was as follows:

	June 30, 2021
(in millions)	Three Months Ended		Six Months Ended
Balance at beginning of period	$	77	$	92
(+) Accruals	5		17
(-) Distributions to clients	(19)		(46)
Balance at end of period	$	63	$	63

Variable Consideration and Pricing Allocation

Our contracts with clients generally do not include any variable consideration. However, from time to time, we may offer credits to our clients considered to be variable consideration. Incentive credits related to contract renewals are recorded as a reduction to revenue as part of the transaction price at contract inception and are allocated among the performance obligations based on their relative standalone selling prices. Credits based on the performance of our insurance costs are recorded as a reduction to insurance services revenues and included in client deposits and other client liabilities on the balance sheet. In the six months ended June 30, 2021, we accrued $25 million under our 2021 Credit Program, payable within 12 months to eligible clients as of March 31, 2021, related to the expected performance of our health insurance costs for the year.

Accrued Health Insurance Costs

We sponsor and administer a number of employee benefit plans, including group health, dental, and vision as an employer plan sponsor under section 3(5) of the ERISA. In the six months ended June 30, 2021, a majority of our group health insurance costs related to risk-based plans. Our remaining group health insurance costs were for guaranteed-cost policies.

Accrued health insurance costs are established to provide for the estimated unpaid costs of reimbursing the carriers for paying claims within the deductible layer in accordance with risk-based health insurance policies. These accrued costs include estimates for reported losses, plus estimates for claims incurred but not paid. We assess accrued health insurance costs regularly based upon external actuarial studies that include other relevant factors such as current and historical claims payment patterns, plan enrollment and medical trend rates.

In certain carrier contracts we are required to prepay the expected claims activity for subsequent periods. These prepaid balances by agreement permit net settlement of obligations and offset the accrued health insurance costs. As of June 30, 2021 and December 31, 2020, prepayments and miscellaneous receivables offsetting accrued health insurance costs were $54 million and $49 million, respectively. When the prepaid amount is in excess of our recorded liability the net asset position is included in prepaid expenses. As of June 30, 2021 and December 31, 2020, accrued health insurance costs offsetting prepaid expenses were $69 million and $58 million, respectively.

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FINANCIAL STATEMENTS Table of Contents

NOTE 2. CASH, CASH EQUIVALENTS AND INVESTMENTS - UNRESTRICTED AND RESTRICTED

Under the terms of the agreements with certain of our workers' compensation and health benefit insurance carriers, we are required to maintain collateral in trust accounts for the benefit of specified insurance carriers and to reimburse the carriers’ claim payments within our deductible layer. We invest a portion of the collateral amounts in marketable securities. We report the current and noncurrent portions of these trust accounts as restricted cash, cash equivalents and investments on the consolidated balance sheets.

We require our clients to prefund their payroll and related taxes and other withholding liabilities before payroll is processed or due for payment. This prefund is included in restricted cash, cash equivalents and investments as payroll funds collected, which is designated to pay pending payrolls, payroll tax liabilities and other payroll withholdings.

We also invest available corporate funds, primarily in fixed income securities which meet the requirements of our corporate investment policy and are classified as available for sale (AFS).

Our total cash, cash equivalents and investments are summarized below:

	June 30, 2021						December 31, 2020
(in millions)	Cash and cash equivalents		Available-for-sale marketable securities		Total		Cash and cash equivalents		Available-for-sale marketable securities		Total
Cash and cash equivalents	$	464	$	—	$	464	$	301	$	—	$	301
Investments	—		131		131		—		57		57
Restricted cash, cash equivalents and investments:
Payroll funds collected	783		—		783		1,228		—		1,228
Collateral for health benefits claims	23		89		112		16		82		98
Collateral for workers' compensation claims	61		—		61		60		—		60
Other security deposits	2		—		2		2		—		2
Total restricted cash, cash equivalents and investments	869		89		958		1,306		82		1,388
Investments, noncurrent	—		194		194		—		138		138
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	28		151		179		36		174		210
Total	$	1,361	$	565	$	1,926	$	1,643	$	451	$	2,094

NOTE 3. INVESTMENTS

The amortized cost, gross unrealized gains, gross unrealized losses, and fair values of our AFS investments as of June 30, 2021 and December 31, 2020 are presented below:

	June 30, 2021								December 31, 2020
(in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Asset-backed securities	$	44	$	—	$	—	$	44	$	24	$	—	$	—	$	24
Corporate bonds	167		2		—		169		126		2		—		128
U.S. government agencies and government- sponsored agencies	19		—		—		19		27		1		—		28
U.S. treasuries	312		3		—		315		261		4		—		265
Certificate of deposit	10		—		—		10		—		—		—		—
Other debt securities	8		—		—		8		6		—		—		6
Total	$	560	$	5	$	—	$	565	$	444	$	7	$	—	$	451

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FINANCIAL STATEMENTS Table of Contents

Gross unrealized losses were immaterial at June 30, 2021 and December 31, 2020.

Unrealized losses on fixed income securities are principally caused by changes in interest rates and the financial condition of the issuer. In analyzing an issuer's financial condition, we consider whether the securities are issued by the federal government or its agencies, whether downgrades by credit rating agencies have occurred, and industry analysts' reports. As we have the ability to hold these investments until maturity, or for the foreseeable future, no decline was deemed to be other-than-temporary. Actual maturities may differ from contractual maturities because borrowers may have the right to prepay obligations with or without prepayment penalties.

The fair value of debt investments by contractual maturity are shown below:

(in millions)	June 30, 2021
One year or less	$	188
Over one year through five years	340
Over five years through ten years	7
Over ten years	30
Total fair value	$	565

The gross proceeds from sales and maturities of AFS securities for the three and six months ended June 30, 2021 and June 30, 2020 are presented below. We had immaterial gross realized gains and losses from sales of investments for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Gross proceeds from sales	$	39	$	12	$	80	$	52
Gross proceeds from maturities	32		40		75		67
Total	$	71	$	52	$	155	$	119

NOTE 4. FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

Fair Value of Financial Instruments

We use an independent pricing source to determine the fair value of our securities. The independent pricing source utilizes various pricing models for each asset class, including the market approach. The inputs and assumptions for the pricing models are market observable inputs including trades of comparable securities, dealer quotes, credit spreads, yield curves and other market-related data.

We have not adjusted the prices obtained from the independent pricing service and we believe the prices received from the independent pricing service are representative of the prices that would be received to sell the assets at the measurement date (exit price).

The carrying value of the Company's cash equivalents and restricted cash equivalents approximate their fair values due to their short-term maturities.

We did not have any Level 3 financial instruments recognized in our balance sheet as of June 30, 2021 and December 31, 2020. There were no transfers between levels as of June 30, 2021 and December 31, 2020.

Fair Value Measurements on a Recurring Basis

The following tables summarize our financial instruments by significant categories and fair value measurement on a recurring basis as of June 30, 2021 and December 31, 2020.

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FINANCIAL STATEMENTS Table of Contents

(in millions)	Level 1		Level 2		Total
June 30, 2021
Cash equivalents:
Money market mutual funds	$	3	$	—	3
Total cash equivalents	3		—		3
Investments:
Asset-backed securities	—		44		44
Corporate bonds	—		132		132
U.S. government agencies and government-sponsored agencies	—		3		3
U.S. treasuries	—		138		138
Other debt securities	—		8		8
Total investments	—		325		325
Restricted cash equivalents:
Money market mutual funds	94		—		94
Certificate of deposit	—		—		—
Commercial paper	—		—		—
Total restricted cash equivalents	94		—		94
Restricted investments:
Corporate bonds	—		37		37
U.S. government agencies and government-sponsored agencies	—		16		16
U.S. treasuries	—		177		177
Certificate of deposit	—		10		10
Total restricted investments	—		240		240
Total cash equivalents and investments and restricted cash equivalents and investments	$	97	$	565	$	662

(in millions)	Level 1		Level 2		Total
December 31, 2020
Cash equivalents
Money market mutual funds	$	2	$	—	$	2
U.S. treasuries	—		11		11
Total cash equivalents	2		11		13
Investments
Asset-backed securities	—		24		24
Corporate bonds	—		93		93
U.S. government agencies and government-sponsored agencies	—		5		5
U.S. treasuries	—		67		67
Other debt securities	—		6		6
Total investments	—		195		195
Restricted cash equivalents:
Money market mutual funds	99		—		99
Total restricted cash equivalents	99		—		99
Restricted investments:
Corporate bonds	—		35		35
U.S. government agencies and government-sponsored agencies	—		23		23
U.S. treasuries	—		198		198
Total restricted investments	—		256		256
Total investments and restricted cash equivalents and investments	$	101	$	462	$	563

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FINANCIAL STATEMENTS Table of Contents

Fair Value of Financial Instruments Disclosure

Long-Term Debt

As of December 31, 2020, our long-term debt was floating rate debt and the fair value approximated its carrying value (exclusive of issuance costs). The fair value of our floating rate debt was estimated based on a discounted cash flow, which incorporated credit spreads and market interest rates to estimate the fair value and was considered Level 3 in the hierarchy for fair value measurement.

The fair value of our 2029 Notes was obtained from a third-party pricing service and is based on observable market inputs. As such, the fair value of the senior notes is considered Level 2 in the hierarchy for fair value measurement. As of June 30, 2021, our 2029 Notes were carried at their cost, net of issuance costs, and had a fair value of $495 million.

Derivative Instruments

As of December 31, 2020, the fair value of the interest rate collar derivative, included in accounts payable and other current liabilities, was $1 million and was classified as Level 2 in the fair value hierarchy. In conjunction with the repayment and termination of our 2018 Term Loan, the interest rate collar derivative was terminated and settled and a realized loss of $1 million was recognized in net income for the six months ended June 30, 2021.

NOTE 5. ACCRUED WORKERS' COMPENSATION COSTS

The following table summarizes the accrued workers’ compensation cost activity for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Total accrued costs, beginning of period	$	205	$	217	$	205	$	214
Incurred
Current year	18		13		33		33
Prior years	(12)		(6)		(15)		(9)
Total incurred	6		7		18		24
Paid
Current year	(2)		(2)		(3)		(3)
Prior years	(11)		(11)		(22)		(24)
Total paid	(13)		(13)		(25)		(27)
Total accrued costs, end of period	$	198	$	211	$	198	$	211

The following summarizes workers' compensation liabilities on the condensed consolidated balance sheets:

(in millions)	June 30, 2021		December 31, 2020
Total accrued costs, end of period	$	198	$	205
Collateral paid to carriers and offset against accrued costs	(8)		(8)
Total accrued costs, net of carrier collateral offset	$	190	$	197
Payable in less than 1 year (net of collateral paid to carriers of $3 at June 30, 2021 and December 31, 2020, respectively)	$	57	$	59
Payable in more than 1 year (net of collateral paid to carriers of $5 at June 30, 2021 and December 31, 2020, respectively)	133		138
Total accrued costs, net of carrier collateral offset	$	190	$	197

Incurred claims related to prior years represent changes in estimates for ultimate losses on workers' compensation claims. For the three and six months ended June 30, 2021, the change was primarily due to lower than expected claim frequency.

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FINANCIAL STATEMENTS Table of Contents

As of June 30, 2021 and December 31, 2020, we had $44 million and $45 million, respectively, of collateral held by insurance carriers of which $8 million for both periods was offset against accrued workers' compensation costs as the agreements permit and are net settled of insurance obligations against collateral held.

NOTE 6. LONG-TERM DEBT AND REVOLVING CREDIT AGREEMENTS

As of June 30, 2021 and December 31, 2020, our long-term debt consisted of the following:

(in millions)	June 30, 2021			December 31, 2020
2018 Term Loan A	$	—		$	370
2029 Notes	500			—
Principal amount	500			370
Deferred issuance costs	(5)			—
Less: current portion	—			(22)
Long-term debt, noncurrent	$	495		$	348
Annual contractual interest rate	3.50		%	1.77		%
Effective interest rate	3.67		%	1.87		%

In June 2018 we entered into a $425 million term loan A (our 2018 Term Loan) under our 2018 credit agreement (our 2018 Credit Agreement). The 2018 Credit Agreement included a $250 million revolving credit facility (our 2018 Revolver). The 2018 Credit Agreement was terminated in February 2021.

In February 2021, we issued $500 million aggregate principal of 3.50% senior unsecured notes maturing in March 2029 (our 2029 Notes). The 2029 Notes are a senior unsecured obligation of TriNet Group, Inc. and rank equally with all of its existing and future senior unsecured indebtedness. Interest payments on the 2029 Notes are due semi-annually in arrears on March 1 and September 1, beginning on September 1, 2021. The net proceeds were used to repay and terminate our 2018 Term Loan and for general corporate purposes.

We may voluntarily redeem the 2029 Notes, in whole or in part, 1) at any time prior to March 1, 2024 at (a) 100% of their principal amount, plus a “make whole” premium or (b) with the net cash proceeds received from an equity offering at a redemption price equal to 103.50% of the principal amount, provided the aggregate principal amount of all such redemptions does not exceed 40% of the original aggregate principal amount of the 2029 Notes; 2) at any time on or after March 1, 2024 at a prepayment price equal to 101.75% of the principal amount; 3) at any time on or after March 1, 2025 at a prepayment price equal to 100.875%of the principal amount; and 4) at any time on or after March 1, 2026 at a prepayment price equal to 100% of the principal amount; in each case, plus accrued and unpaid interest, if any, to but excluding, the date of redemption.

In February 2021, concurrently with the closing of the 2029 Notes offering, we entered into a new $500 million revolving facility (our 2021 Revolver) under a new credit agreement (our 2021 Credit Agreement) and the 2018 Credit Agreement was terminated. Letters of credit issued pursuant to the revolving facility reduce the amount available for borrowing under the 2021 Revolver. As of June 30, 2021, we had remaining capacity of $491 million under our 2021 Revolver.

The annual interest rate for borrowings under our 2021 Revolver is calculated based on an applicable London Interbank Offered Rate (LIBOR) tenor of our choosing, plus a margin of 1.25% to 2.00%, or, at our option, the alternative base rate (ABR), plus a margin of 0.25% to 1.00%. The applicable LIBOR or ABR margin is based on our Total Leverage Ratio, as defined in the 2021 Credit Agreement. The ABR is the highest of (a) the applicable Federal Reserve Bank of New York rate, as defined in our 2021 Credit Agreement plus 0.50% (b) the prime rate, and (c) one month LIBOR adjusted daily plus 1.00%.

In the event TriNet Group, Inc. receives a Corporate Issuer Credit Rating that is one level below investment grade rating or higher from at least two Nationally Recognized Statistical Rating Organizations, then rating based pricing applies and, for so long as rating based pricing applies, irrespective of the Total Leverage Ratio, the LIBOR margin will be 1.125% and the ABR margin will be 0.125%.

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FINANCIAL STATEMENTS Table of Contents

The indenture governing our 2029 Notes includes restrictive covenants limiting our ability to: (i) create liens on certain assets to secure debt; (ii) grant a subsidiary guarantee of certain debt without also providing a guarantee of the 2029 Notes; and (iii) consolidate or merge with or into, or sell or otherwise dispose of all or substantially all of our assets to, another person, subject, in each case, to certain customary exceptions.

The 2021 Credit Agreement includes negative covenants that limit our ability to incur indebtedness and liens, sell assets and make restricted payments, including dividends and investments, subject to certain exceptions. In addition, the 2021 Credit Agreement also contains other customary affirmative and negative covenants and customary events of default. The 2021 Credit Agreement also contains a financial covenant that requires the Company to maintain certain maximum total net leverage ratios. We were in compliance with all financial covenants under the 2021 Credit Agreement at June 30, 2021.

NOTE 7. COMMITMENTS AND CONTINGENCIES

Contingencies

On September 29, 2020, a class action was filed in the United States District Court for the Middle District of Florida against the directors of certain TriNet subsidiaries and other TriNet employees on behalf of participants in two retirement plans available to TriNet’s eligible worksite employees, the TriNet 401(k) Plan and the TriNet Select 401(k) Plan. The complaint is similar to claims recently brought against a number of employers including PEOs and generally alleges that the defendants violated certain fiduciary obligations to Plan participants under the Employee Retirement Income Security Act of 1974 with respect to overseeing plan investment and recordkeeping fees. These claims are in the early stages, and we are unable to reasonably estimate any possible loss, or range of loss, with respect to this matter. We believe the claims are without merit.

We are and, from time to time, have been and may in the future become involved in various litigation matters, legal proceedings, and claims arising in the ordinary course of our business, including disputes with our clients or various class action, collective action, representative action, and other proceedings arising from the nature of our co-employment relationship with our clients and WSEs in which we are named as a defendant. In addition, due to the nature of our co-employment relationship with our clients and WSEs, we could be subject to liability for federal and state law violations, even if we do not participate in such violations. While our agreements with our clients contain indemnification provisions related to the conduct of our clients, we may not be able to avail ourselves of such provisions in every instance. We have accrued our current best estimates of probable losses with respect to these matters, which are individually and in aggregate immaterial to our consolidated financial statements.

While the outcome of the matters described above cannot be predicted with certainty, management currently does not believe that any such claims or proceedings will have a materially adverse effect on our consolidated financial position, results of operations, or cash flows. However, the unfavorable resolution of any particular matter or our reassessment of our exposure for any of the above matters based on additional information obtained in the future could have a material impact on our consolidated financial position, results of operations, or cash flows.

NOTE 8. STOCK BASED COMPENSATION

Restricted Stock Units (RSUs) and Restricted Stock Awards (RSAs)

Time-based RSUs and RSAs generally vest over a four-year term. Performance-based RSUs and RSAs are subject to vesting requirements and are earned, in part, based on certain financial performance metrics as defined in the grant notice. Actual number of shares earned may range from 0% to 200% of the target award. Performance-based awards granted in 2021 and 2020 are earned based on a single-year performance period subject to subsequent multi-year time-based vesting with 50% of the shares earned vesting in one year after the performance period and the remaining shares in the year after. RSUs and RSAs are generally forfeited if the participant terminates service prior to vesting.

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FINANCIAL STATEMENTS Table of Contents

The following tables summarize RSU and RSA activity for the six months ended June 30, 2021:

Time-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	1,230,071	30,026	1,260,097	$	54.04
Granted	491,136	—	491,136	82.72
Vested	(343,508)	(12,797)	(356,305)	50.45
Forfeited	(94,764)	—	(94,764)	58.05
Nonvested at June 30, 2021	1,282,935	17,229	1,300,164	$	65.57

Performance-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	167,127	16,052	183,179	$	52.89
Granted	246,349	—	246,349	67.70
Vested	(3,010)	(16,052)	(19,062)	47.61
Forfeited	(9,459)	—	(9,459)	52.86
Nonvested at June 30, 2021	401,007	—	401,007	$	62.24

Stock Based Compensation

Stock based compensation expense for stock based awards made to our employees pursuant to our equity plans were as follows:  

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Cost of providing services	$	3	$	3	$	6	$	5
Sales and marketing	2		1		3		3
General and administrative	7		6		13		11
Systems development and programming costs	1		1		2		1
Total stock based compensation expense	$	13	$	11	$	24	$	20

NOTE 9. STOCKHOLDERS’ EQUITY

Common Stock

The following table shows the beginning and ending balances of our issued and outstanding common stock for the three and six months ended June 30, 2021 and 2020:

43

FINANCIAL STATEMENTS Table of Contents

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Shares issued and outstanding, beginning balance	65,881,233	68,470,050	66,456,663	69,065,491
Issuance of common stock from vested restricted stock units	130,560	168,621	346,518	342,250
Issuance of common stock from exercise of stock options	8,894	11,136	29,735	40,609
Issuance of common stock for employee stock purchase plan	74,070	130,532	74,070	130,532
Repurchase of common stock	(181,250)	(1,419,984)	(925,251)	(2,167,401)
Awards effectively repurchased for required employee withholding taxes	(49,391)	(67,491)	(117,619)	(118,617)
Shares issued and outstanding, ending balance	65,864,116	67,292,864	65,864,116	67,292,864

Stock Repurchases

During the six months ended June 30, 2021, we repurchased 925,251 shares of common stock for approximately $74 million. We retire shares in the period they are acquired and account for the payment as a reduction to stockholders' equity. As of June 30, 2021, approximately $284 million remained available for further repurchases of our common stock under all authorizations from our board of directors under this program. This repurchase authorization has no expiration.

NOTE 10. INCOME TAXES

Our effective tax rate (ETR) was 22% and 26% for the three months ended June 30, 2021 and 2020, respectively, and 24% and 26% for the six months ended June 30, 2021 and 2020, respectively. The decrease when comparing the quarter and year to date rates for 2021 with the same periods in 2020 was primarily due to benefits associated with a favorable adjustment of our previously disputed receivable from the IRS and an increase in tax benefits related to stock-based compensation.

During the six months ended June 30, 2021, there was a decrease of $1 million in our unrecognized tax benefits. The total amount of gross interest and penalties accrued was immaterial. It is reasonably possible the amount of the unrecognized benefit could increase or decrease within the next 12 months for which an estimate of the impact on net income cannot be made.

We are subject to tax in U.S. federal and various state and local jurisdictions, as well as Canada. We are open to federal and significant state income tax examinations for tax years 2016 and subsequent years.

We previously paid Notices of Proposed Assessments disallowing employment tax credits totaling $11 million, plus interest of $4 million in connection with the IRS examination of Gevity HR, Inc. and its subsidiaries, which was acquired by TriNet in June 2009. TriNet filed suit in June 2016 to recover the disallowed credits, and the issue is being resolved through the litigation process. TriNet and the U.S. filed cross motions for summary judgment in federal district court. On September 17, 2018, the district court granted our motion for summary judgment and denied the U.S.'s motion. On January 18, 2019, the district court entered judgment in favor of TriNet in the amount of $15 million, plus interest. The U.S. filed a notice of appeal of the federal district court's decision on March 18, 2019. The U.S. filed its opening brief in the court of appeals on June 10, 2019 and we filed our answering brief on July 24, 2019 to which the government filed its reply brief on September 6, 2019. Oral arguments occurred on March 11, 2020. On November 5, 2020, the court of appeals affirmed the district court’s judgement in favor of TriNet. The April 5, 2021 deadline for the IRS to petition the Supreme Court for review passed without a petition. TriNet will pursue recovery of the judgment.

44

FINANCIAL STATEMENTS Table of Contents

NOTE 11. EARNINGS PER SHARE (EPS)

The following table presents the computation of our basic and diluted EPS attributable to our common stock:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions, except per share data)	2021		2020		2021		2020
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Basic EPS	$	1.38	$	1.88	$	2.91	$	3.16
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Dilutive effect of stock options and restricted stock units	1		1		1		1
Weighted average shares of common stock outstanding	67		68		67		70
Diluted EPS	$	1.37	$	1.87	$	2.87	$	3.13
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect	1		1		1		2

45

OTHER INFORMATION Table of Contents

46

OTHER INFORMATION Table of Contents

Risk Factors

Other than the restated risk factors below, which have been updated to reflect recent events, there have been no material changes in our risk factors disclosed in Part 1, Item 1A, of our 2020 Form 10-K.

If we are not recognized as an employer of worksite employees under federal and state regulations, we and our clients could be adversely impacted.

In order to sponsor our employee benefit plan offerings for WSEs, we must qualify as an employer of WSEs for certain purposes under the Code and ERISA. In addition, our status as the employer for the purposes of ERISA is important for purposes of ERISA’s preemption of certain state laws. The definition of employer under various laws is not uniform, and under both the Code and ERISA the term is defined in part by different facts and circumstances tests.

Generally, these tests are designed to evaluate whether an individual is an independent contractor or employee and they provide substantial weight to whether a purported employer has the right to direct and control the details of an individual's work. Some factors that may be considered important under these tests in evaluating these issues have included the employer’s degree of behavioral control (for example the extent of instructions, training and evaluation of the work), financial control and the economic aspects of the work relationship, the type of relationship, as evidenced by the specific contract, if any, whether employee benefits are provided, whether the work is indefinite in duration or project-based, and whether it is a regular part of the employer’s business. However, a definitive judicial interpretation of “employer” in the context of PEOs has not been established.

We believe that we qualify as the employer of WSEs for the purposes of Sections 3(5) and 3(40) of ERISA and that our health and welfare plans are single-employer plans that, as such, are entitled to ERISA’s preemption of state law. The DOL, however, has determined on a facts and circumstances basis that certain entities in the HR outsourcing industry do not qualify as common law employers. In addition, the DOL routinely audits employee benefit plan offerings of employers, and these audits can take years to complete. In one routine audit of TriNet’s plans, the DOL has indicated that while it agrees that we are an employer for ERISA purposes, it believes that wherever there is more than one employer of a WSE, no employer may qualify as a single employer for ERISA purposes. This DOL interpretation is contrary to our interpretation of the applicable ERISA facts and circumstances test, and we understand it also is contrary to the position of other national PEOs. We will continue to vigorously defend our position that we are the sole employer of our WSEs for the purposes of Sections 3(5) and 3(40) of ERISA, and therefore that our health and welfare plans are single-employer plans entitled to ERISA’s preemption of applicable state laws. While we have no current DOL audit on-going regarding this issue, the DOL’s position remains uncertain, and this issue may arise in future audits of TriNet plans or the plans of other PEOs in our industry. If it were ultimately determined that all health and welfare plans sponsored by PEOs are multiple-employer plans and subject to potential regulation at the state level, we would likely adjust our business model and the manner in which we provide health and welfare employee benefits to WSEs. Any such adjustment would require significant investment in time, cost and management attention and would have a material impact on our clients and WSEs, which could have a material adverse effect on our business and results of operations.

Similarly, to qualify for favorable tax treatment under the Code, certain employee benefit plans, such as 401(k) retirement plans and cafeteria plans must be established and maintained by an employer for the exclusive benefit of its employees. All of our 401(k) retirement plans are operated pursuant to guidance provided by the IRS and have received favorable determination letters from the IRS confirming the qualified status of these plans. However, the IRS uses its own complex, multi-factor test to ascertain whether an employment relationship exists between a worker and a purported employer. Although we believe that we qualify as an employer of WSEs under the Code, we cannot assure you that the IRS will not challenge our position or continue to provide favorable determination letters. Moreover, the IRS' 401(k) guidance and qualification requirements are not applicable to the operation of our cafeteria plans.

If we are not recognized as an employer under the Code, we may be required to change the method by which we report and remit payroll taxes to the tax authorities. Such changes could have a material adverse effect on our business and results of operations.

Our business is subject to numerous complex laws, and changes in, uncertainty regarding, or adverse application of these laws could negatively affect our business.

The services we provide to our clients are subject to numerous complex federal, state and local laws and regulations, including those described in Part I, Item 1. Business, of this Form 10-K. These laws and regulations cover a diverse range of topics, including employer, employee and independent contractor classifications, employee benefit, health and retirement plan laws, workers' compensation laws, employment and payroll tax laws, worksite

47

OTHER INFORMATION Table of Contents

safety laws, insurance and banking laws, wage and hour laws, anti-discrimination laws, and many laws specific to the industries of our clients. Many of these laws do not specifically address PEOs or co-employment relationships, and regulators are often unfamiliar with the PEO industry and co-employment relationships, which can lead to unpredictable application, interpretation and enforcement of these laws and regulations at the federal, state and local levels in relation to our business.

Any new laws, changes in existing laws, or any adverse application, interpretation or enforcement of new or existing laws, including those described in Part I, Item 1. Business, of this Form 10-K, whether they apply to employers generally or specifically to PEOs or to our co-employment relationships could:

•reduce or eliminate the value and benefits that clients realize by using our services,

•change or eliminate the types of services we provide,

•require us to make significant changes to how we do business and provide services,

•affect the extent and type of employee benefits that employers and co-employers can or must provide employees,

•alter the amount, timing and type of taxes employers, co-employers, clients and WSEs are required to pay and that we must manage for and collect from our clients,

•increase the cost and complexity of the licensing requirements for our business operations,

•create or increase our liability and responsibilities to our clients and WSEs, and/or

•mandate new compliance requirements, disclosures or services.

Any of these changes could have a material adverse effect on our financial condition and results of operations.

The laws that apply in our industry and to employers and co-employers have in the past, and could in the future, be changed, replaced or interpreted in a manner adverse to our operations and we are not able to predict the occurrence, direction or ultimate impact of these events.

For example, we have seen a growing trend, particularly at the federal level, of using payroll tax credits, deferrals and other related payroll tax programs as a mechanism for incentivizing SMB development and/or economic recovery. These programs are popular because they allow SMBs, which often have income tax losses, to realize benefits via payroll tax reductions, rather than income tax reductions. However, these programs have generally not been designed with the PEO industry in mind and many rely on client income tax returns (which PEOs do not process in their role as the co-employer) and/or other client data that cannot be verified by a PEO, even though the resulting tax benefits are processed through the PEO’s payroll tax returns. Because minimal guidance exists in the statutes that create these programs, they are often subject to broad agency interpretation. In addition, the processes used to evaluate payroll tax filings are designed with individual taxpayers, not PEOs that aggregate the filings of many clients, in mind, which can lead to agency confusion and make it difficult to predict agency interpretations.

Examples of these programs include the 2015 PATH Act, which allows SMBs to use research and development tax credits submitted on the SMB’s income tax return to reduce payroll taxes, and the CARES Act and FFCRA Act payroll tax credit and payroll tax deferral programs enacted in 2020 and 2021, which allow SMBs to defer certain payroll tax obligations to a later date or to receive payroll tax reductions and refunds based on SMB employment practices that are beyond a PEO’s control. We have experienced, and expect to continue to experience, the IRS taking positions that PEOs, rather than clients, are responsible for client errors under these and similar programs, and that tax benefits should be calculated on an aggregate PEO, rather than individual client, basis, which can limit our ability to obtain full tax benefits for our clients under these and similar programs and/or increase our exposure to credit risk if we are not able to recover excess benefits paid to our clients. We cannot predict how these positions will ultimately be resolved.

These developments, and any other new laws, changes in laws or adverse application or interpretation of laws, including payroll tax incentive programs, could reduce or eliminate the attractiveness of our services and our ability to support programs that clients want, provide clients with new and attractive alternatives to our services, significantly increase our compliance costs and the cost to provide our services, require us to make substantial changes to the way in which we operate, or require us to pay client liabilities with no guarantee of subsequent recovery from our clients, and any one of these outcomes could result in a material adverse effect on our financial condition and results of operations.

Legal Proceedings

For the information required in this section, refer to Note 7 in the condensed consolidated financial statements and related notes included in this Form 10-Q.

48

OTHER INFORMATION Table of Contents

Unregistered Sales of Equity Securities and Use of Proceeds

(a) Sales of Unregistered Securities

Not applicable.

(b) Use of Proceeds from Sales of Unregistered Securities

Not applicable.

(c) Issuer Purchases of Equity Securities

The following table provides information about our purchases of TriNet common stock during the quarter ended June 30, 2021:

Period	Total Number of Shares Purchased (1)	Weighted Average Price Paid Per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans (2)	Approximate Dollar Value ($ millions) of Shares that May Yet be Purchased Under the Plans (3)
April 1 - April 30, 2021	132,163	$	79.12	132,163	$	287
May 1 - May 31, 2021	60,574	$	79.90	12,905	$	286
June 1 - June 30, 2021	37,904	$	72.54	36,182	$	284
Total	230,641			181,250

(1) In May 2014, our board of directors approved a stock repurchase program pursuant to which we are authorized to repurchase our common stock in privately negotiated and/or open market transactions, including under plans complying with Rule 10b5-1 under the Securities Exchange Act of 1934. From time to time, our board of directors authorizes increases to our stock repurchase program and approved an aggregate total of $951 million as of June 30, 2021. The total remaining authorization for future stock repurchases under our stock repurchase program was $284 million as of June 30, 2021. The program does not have an expiration date.

(2) Includes shares surrendered by employees to us to satisfy tax withholding obligations that arose upon vesting of restricted stock units granted pursuant to approved plans.

(3) We repurchased a total of approximately $14 million of our outstanding stock during the three months ended June 30, 2021.

We use our stock repurchase program to return value to our stockholders and to offset dilution from the issuance of stock under our equity-based incentive plans and employee purchase plan. We plan to use current cash and cash generated from ongoing operating activities to fund our stock repurchase program.

Defaults Upon Senior Securities

Not applicable.

Mine Safety Disclosures

Not applicable.

Other Information

Not applicable.

49

EXHIBITS Table of Contents

Exhibits

Incorporated herein by reference is a list of the exhibits contained in the Exhibit Index below.

EXHIBIT INDEX

		Incorporated by Reference
Exhibit No.	Exhibit	Form	File No.	Exhibit	Filing Date	Filed Herewith
3.1	Amended and Restated Certificate of Incorporation of TriNet Group, Inc.	8-K	001-36373	3.1	4/1/2014
3.2	Certificate of Correction of Amended and Restated Certificate of Incorporation of TriNet Group, Inc.	10-Q	001-36373	3.1	11/2/2017
3.2	Amended and Restated Bylaws of TriNet Group, Inc.	S-1/A	333-192465	3.4	3/4/2014
4.1	Registration Rights Agreement, by and between TriNet Group, Inc. and AGI-T, L.P., dated as of February 1, 2017.	8-K	001-36373	4.1	2/2/2017
31.1	Certification of Principal Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X
31.2	Certification of Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002					X
32.1*	Certification of Principal Executive Officer and Principal Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002					X
101.INS	XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	XBRL Taxonomy Extension Schema Linkbase Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (embedded with the Inline XBRL document)

* Document has been furnished, is deemed not filed and is not to be incorporated by reference into any of TriNet Group, Inc.’s filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, irrespective of any general incorporation language contained in any such filing.

50

SIGNATURES Table of Contents

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

	TRINET GROUP, INC.
Date: July 26, 2021		By:	/s/ Burton M. Goldfield
			Burton M. Goldfield
			Chief Executive Officer
Date: July 26, 2021		By:	/s/ Kelly Tuminelli
			Kelly Tuminelli
			Chief Financial Officer

51

EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Burton M. Goldfield, certify that:

1.I have reviewed this quarterly report on Form 10-Q of TriNet Group, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)     designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)     designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)     evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)     all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)     any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 26, 2021

/s/ Burton M. Goldfield

Burton M. Goldfield

President and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Kelly Tuminelli, certify that:

1.I have reviewed this quarterly report on Form 10-Q of TriNet Group, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)     designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)     designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)     evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)    disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

(a)     all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)     any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 26, 2021

/s/ Kelly Tuminelli

Kelly Tuminelli

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of TriNet Group, Inc., a Delaware corporation (the “Company”), on Form 10-Q for the period ending June 30, 2021 as filed with the U.S. Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers of the Company does hereby certify, pursuant to 18 U.S.C. § 1350 (section 906 of the Sarbanes-Oxley Act of 2002), that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

The foregoing certification (i) is given to such officers’ knowledge, based upon such officers’ investigation as such officers reasonably deem appropriate; and (ii) is being furnished solely pursuant to 18 U.S.C. § 1350 (section 906 of the Sarbanes-Oxley Act of 2002) and is not being filed as part of the Report or as a separate disclosure document and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.

Date: July 26, 2021	/s/ Burton M. Goldfield
	Burton M. Goldfield
	Chief Executive Officer
Date: July 26, 2021	/s/ Kelly Tuminelli
	Kelly Tuminelli
	Chief Financial Officer

XML

Cover - shares	6 Months Ended
	Jun. 30, 2021	Jul. 19, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-36373
Entity Registrant Name	TRINET GROUP, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	95-3359658
Entity Address, Address Line One	One Park Place,
Entity Address, Address Line Two	Suite 600
Entity Address, City or Town	Dublin,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94568
City Area Code	510
Local Phone Number	352-5000
Title of 12(b) Security	Common stock par value $0.000025 per share
Trading Symbol	TNET
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		65,857,282
Entity Central Index Key	0000937098
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false

XML

CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Total revenues	$ 1,100	$ 948	$ 2,160	$ 1,996
Costs and operating expenses:
Insurance costs	798	613	1,549	1,378
Cost of providing services	66	60	130	124
Sales and marketing	45	45	91	91
General and administrative	40	35	76	68
Systems development and programming	11	9	24	18
Depreciation and amortization of intangible assets	19	13	31	24
Total costs and operating expenses	979	775	1,901	1,703
Operating income	121	173	259	293
Other income (expense):
Interest expense, bank fees and other	(5)	(4)	(10)	(8)
Interest income	1	2	3	7
Income before provision for income taxes	117	171	252	292
Income taxes	26	45	60	75
Net income	91	126	192	217
Other comprehensive (loss) income, net of income taxes	0	3	(1)	5
Comprehensive income	$ 91	$ 129	$ 191	$ 222
Net income per share:
Basic (in dollars per share)	$ 1.38	$ 1.88	$ 2.91	$ 3.16
Diluted (in dollars per share)	$ 1.37	$ 1.87	$ 2.87	$ 3.13
Weighted average shares:
Basic (in shares)	66	67	66	69
Diluted (in shares)	67	68	67	70
Professional service revenues
Total revenues	$ 156	$ 121	$ 309	$ 277
Insurance service revenues
Total revenues	$ 944	$ 827	$ 1,851	$ 1,719

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 464	$ 301
Investments	131	57
Restricted cash, cash equivalents and investments	958	1,388
Accounts receivable, net	8	18
Unbilled revenue, net	346	246
Prepaid expenses, net	68	63
Other current assets	109	87
Total current assets	2,084	2,160
Restricted cash, cash equivalents and investments, noncurrent	179	210
Investments, noncurrent	194	138
Property, equipment and software, net	76	79
Operating lease right-of-use asset	48	51
Goodwill	294	294
Other intangible assets, net	9	18
Other assets	94	93
Total assets	2,978	3,043
Current liabilities:
Accounts payable and other current liabilities	81	50
Long-term debt	0	22
Client deposits and other client liabilities	132	134
Accrued wages	506	309
Accrued health insurance costs, net	155	172
Accrued workers' compensation costs, net	57	59
Payroll tax liabilities and other payroll withholdings	572	1,095
Operating lease liabilities	12	11
Insurance premiums and other payables	15	18
Total current liabilities	1,530	1,870
Long-term debt, noncurrent	495	348
Accrued workers' compensation costs, noncurrent, net	133	138
Deferred taxes	21	22
Operating lease liabilities, noncurrent	46	49
Other non-current liabilities	9	9
Total liabilities	2,234	2,436
Commitments and contingencies (see Note 7)
Stockholders' equity:
Preferred stock	0	0
Common stock and additional paid-in capital	776	747
Accumulated deficit	(35)	(144)
Accumulated other comprehensive income	3	4
Total stockholders' equity	744	607
Total liabilities & stockholders' equity	$ 2,978	$ 3,043

XML

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2021	Dec. 31, 2020
Preferred stock
Preferred stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Preferred stock, shares authorized (in shares)	20,000,000	20,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock
Common stock, par value (in dollars per share)	$ 0.000025	$ 0.000025
Common stock, shares authorized (in shares)	750,000,000	750,000,000
Common stock, shares issued (in shares)	65,864,116	66,456,663
Common stock, shares outstanding (in shares)	65,864,116	66,456,663

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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock and Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Beginning balance at Dec. 31, 2019	$ 475	$ 694	$ (219)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		5
Stock-based compensation expense		20
Net income	217		217
Repurchase of common stock			(100)
Awards effectively repurchased for required employee withholding taxes			(6)
Other comprehensive (loss) income	5			5
Ending balance at Jun. 30, 2020	616	719	(108)	5
Beginning balance at Mar. 31, 2020	533	703	(172)	2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		5
Stock-based compensation expense		11
Net income	126		126
Repurchase of common stock			(60)
Awards effectively repurchased for required employee withholding taxes			(2)
Other comprehensive (loss) income	3			3
Ending balance at Jun. 30, 2020	616	719	(108)	5
Beginning balance at Dec. 31, 2020	607	747	(144)	4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		5
Stock-based compensation expense		24
Net income	192		192
Repurchase of common stock	(74)		(74)
Awards effectively repurchased for required employee withholding taxes			(9)
Other comprehensive (loss) income	(1)			(1)
Ending balance at Jun. 30, 2021	744	776	(35)	3
Beginning balance at Mar. 31, 2021	653	758	(108)	3
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		5
Stock-based compensation expense		13
Net income	91		91
Repurchase of common stock			(14)
Awards effectively repurchased for required employee withholding taxes			(4)
Other comprehensive (loss) income	0			0
Ending balance at Jun. 30, 2021	$ 744	$ 776	$ (35)	$ 3

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating activities
Net income	$ 192	$ 217
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	45	32
Amortization of ROU	6	8
Accretion of discount rate on lease liabilities	1	1
Amortization of premium of investments	1	0
Stock based compensation	24	20
Changes in operating assets and liabilities:
Accounts receivable, net	10	4
Unbilled revenue, net	(100)	(67)
Prepaid expenses, net	(5)	2
Accounts payable and other current liabilities	29	69
Client deposits and other client liabilities	(2)	102
Accrued wages	197	20
Accrued health insurance costs, net	(17)	(22)
Accrued workers' compensation costs, net	(7)	(2)
Payroll taxes payable and other payroll withholdings	(523)	(475)
Operating lease liabilities	(6)	(10)
Other assets	(32)	(32)
Other liabilities	(3)	3
Net cash used in operating activities	(190)	(130)
Investing activities
Purchases of marketable securities	(267)	(222)
Proceeds from sale and maturity of marketable securities	149	119
Acquisitions of property and equipment	(17)	(18)
Net cash used in investing activities	(135)	(121)
Financing activities
Repurchase of common stock	(74)	(100)
Proceeds from Issuance of Common Stock	5	5
Awards effectively repurchased for required employee withholding taxes	(9)	(6)
Proceeds from revolving credit agreement borrowings	0	234
Payment of long-term financing fees	(2)	0
Payment of debt issuance costs	(7)	0
Proceeds from issuance of 2029 Notes	500	0
Repayment of debt	(370)	(11)
Net cash provided by financing activities	43	122
Net decrease in cash and cash equivalents, unrestricted and restricted	(282)	(129)
Cash and cash equivalents, unrestricted and restricted:
Beginning of period	1,643	1,456
End of period	1,361	1,327
Supplemental disclosures of cash flow information
Interest paid	2	7
Income taxes paid, net	45	6
Supplemental schedule of noncash investing and financing activities
Payable for purchase of property and equipment	$ 2	$ 2

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Description of Business and Significant Accounting Policies

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES

DESCRIPTION OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES

Description of Business

TriNet Group, Inc. (TriNet, or the Company, we, our and us), a professional employer organization, provides comprehensive human resources solutions for small and medium-size businesses under a co-employment model. These HR solutions include multi-state payroll processing and tax administration, employee benefits programs, including health insurance and retirement plans, workers' compensation insurance and claims management, employment and benefit law compliance, and other HR-related services. Through the co-employment relationship, we are the employer of record for certain employment-related administrative and regulatory purposes for the worksite employees (WSEs), including:

•compensation through wages and salaries,

•certain employer payroll-related tax payments,

•employee payroll-related tax withholdings and payments,

•employee benefit programs, including health and life insurance, and others, and

•workers' compensation coverage.

Our clients are responsible for the day-to-day job responsibilities of the WSEs.

We operate in one reportable segment. All of our service revenues are generated from external clients. Less than 1% of our revenue is generated outside of the U.S.

Basis of Presentation

These unaudited condensed consolidated financial statements and accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial reporting and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Rules and Regulations of the Securities and Exchange Commission. Certain information and note disclosures included in our annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, that are normal and recurring in nature, necessary for fair financial statement presentation. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the operating results anticipated for the full year. These financial statements should be read in conjunction with the audited Consolidated Financial Statements included in Part II, Item 8. Financial Statements and Supplementary Data of our Annual Report on Form 10-K for the year ended December 31, 2020 (2020 Form 10-K).

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect certain reported amounts and related disclosures.

These estimates are based on historical experience and on various other assumptions that we believe to be reasonable from the facts available to us. Some of the assumptions are highly uncertain at the time of estimation. To the extent actual experience differs from the assumptions used, our consolidated financial statements could be materially affected.

Revenue Recognition

Performance Obligations

In April 2020, we created our Recovery Credit program to assist in the economic recovery of our existing SMB clients and enhance our ability to retain these clients. Under this one-time program eligible clients will receive reductions against fees for future services, accounted for as a discount, over the following 12 months. This option to renew future services at a discount represents a material right and is accounted for as a performance obligation (Recovery Credit). This performance obligation will be satisfied when the clients have successfully renewed the services contracts and the future services are transferred. 

The consideration we receive that is allocated to this performance obligation is deferred as an unsatisfied performance obligation and is included in client deposits and other client liabilities on the balance sheet. The amount of consideration we defer each period is dependent on the timing of when eligible clients will receive the Recovery Credit, which is subject to a limit on the total amount of $145 million.

The change in the balance of the Recovery Credit unsatisfied performance obligation was as follows:

	June 30, 2021
(in millions)	Three Months Ended		Six Months Ended
Balance at beginning of period	$	77	$	92
(+) Accruals	5		17
(-) Distributions to clients	(19)		(46)
Balance at end of period	$	63	$	63

Variable Consideration and Pricing Allocation

Our contracts with clients generally do not include any variable consideration. However, from time to time, we may offer credits to our clients considered to be variable consideration. Incentive credits related to contract renewals are recorded as a reduction to revenue as part of the transaction price at contract inception and are allocated among the performance obligations based on their relative standalone selling prices. Credits based on the performance of our insurance costs are recorded as a reduction to insurance services revenues and included in client deposits and other client liabilities on the balance sheet. In the six months ended June 30, 2021, we accrued $25 million under our 2021 Credit Program, payable within 12 months to eligible clients as of March 31, 2021, related to the expected performance of our health insurance costs for the year.

Accrued Health Insurance Costs

We sponsor and administer a number of employee benefit plans, including group health, dental, and vision as an employer plan sponsor under section 3(5) of the ERISA. In the six months ended June 30, 2021, a majority of our group health insurance costs related to risk-based plans. Our remaining group health insurance costs were for guaranteed-cost policies.

Accrued health insurance costs are established to provide for the estimated unpaid costs of reimbursing the carriers for paying claims within the deductible layer in accordance with risk-based health insurance policies. These accrued costs include estimates for reported losses, plus estimates for claims incurred but not paid. We assess accrued health insurance costs regularly based upon external actuarial studies that include other relevant factors such as current and historical claims payment patterns, plan enrollment and medical trend rates.

In certain carrier contracts we are required to prepay the expected claims activity for subsequent periods. These prepaid balances by agreement permit net settlement of obligations and offset the accrued health insurance costs. As of June 30, 2021 and December 31, 2020, prepayments and miscellaneous receivables offsetting accrued health insurance costs were $54 million and $49 million, respectively. When the prepaid amount is in excess of our recorded liability the net asset position is included in prepaid expenses. As of June 30, 2021 and December 31, 2020, accrued health insurance costs offsetting prepaid expenses were $69 million and $58 million, respectively.

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Cash, Cash Equivalents and Investments - Unrestricted and Restricted

6 Months Ended

Jun. 30, 2021

Cash and Cash Equivalents [Abstract]

CASH, CASH EQUIVALENTS AND INVESTMENTS - UNRESTRICTED AND RESTRICTED

CASH, CASH EQUIVALENTS AND INVESTMENTS - UNRESTRICTED AND RESTRICTED

Under the terms of the agreements with certain of our workers' compensation and health benefit insurance carriers, we are required to maintain collateral in trust accounts for the benefit of specified insurance carriers and to reimburse the carriers’ claim payments within our deductible layer. We invest a portion of the collateral amounts in marketable securities. We report the current and noncurrent portions of these trust accounts as restricted cash, cash equivalents and investments on the consolidated balance sheets.

We require our clients to prefund their payroll and related taxes and other withholding liabilities before payroll is processed or due for payment. This prefund is included in restricted cash, cash equivalents and investments as payroll funds collected, which is designated to pay pending payrolls, payroll tax liabilities and other payroll withholdings.

We also invest available corporate funds, primarily in fixed income securities which meet the requirements of our corporate investment policy and are classified as available for sale (AFS).

Our total cash, cash equivalents and investments are summarized below:

	June 30, 2021						December 31, 2020
(in millions)	Cash and cash equivalents		Available-for-sale marketable securities		Total		Cash and cash equivalents		Available-for-sale marketable securities		Total
Cash and cash equivalents	$	464	$	—	$	464	$	301	$	—	$	301
Investments	—		131		131		—		57		57
Restricted cash, cash equivalents and investments:
Payroll funds collected	783		—		783		1,228		—		1,228
Collateral for health benefits claims	23		89		112		16		82		98
Collateral for workers' compensation claims	61		—		61		60		—		60
Other security deposits	2		—		2		2		—		2
Total restricted cash, cash equivalents and investments	869		89		958		1,306		82		1,388
Investments, noncurrent	—		194		194		—		138		138
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	28		151		179		36		174		210
Total	$	1,361	$	565	$	1,926	$	1,643	$	451	$	2,094

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Investments

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

INVESTMENTS

INVESTMENTS

The amortized cost, gross unrealized gains, gross unrealized losses, and fair values of our AFS investments as of June 30, 2021 and December 31, 2020 are presented below:

	June 30, 2021								December 31, 2020
(in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Asset-backed securities	$	44	$	—	$	—	$	44	$	24	$	—	$	—	$	24
Corporate bonds	167		2		—		169		126		2		—		128
U.S. government agencies and government- sponsored agencies	19		—		—		19		27		1		—		28
U.S. treasuries	312		3		—		315		261		4		—		265
Certificate of deposit	10		—		—		10		—		—		—		—
Other debt securities	8		—		—		8		6		—		—		6
Total	$	560	$	5	$	—	$	565	$	444	$	7	$	—	$	451

Gross unrealized losses were immaterial at June 30, 2021 and December 31, 2020.

Unrealized losses on fixed income securities are principally caused by changes in interest rates and the financial condition of the issuer. In analyzing an issuer's financial condition, we consider whether the securities are issued by the federal government or its agencies, whether downgrades by credit rating agencies have occurred, and industry analysts' reports. As we have the ability to hold these investments until maturity, or for the foreseeable future, no decline was deemed to be other-than-temporary. Actual maturities may differ from contractual maturities because borrowers may have the right to prepay obligations with or without prepayment penalties.

The fair value of debt investments by contractual maturity are shown below:

(in millions)	June 30, 2021
One year or less	$	188
Over one year through five years	340
Over five years through ten years	7
Over ten years	30
Total fair value	$	565

The gross proceeds from sales and maturities of AFS securities for the three and six months ended June 30, 2021 and June 30, 2020 are presented below. We had immaterial gross realized gains and losses from sales of investments for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Gross proceeds from sales	$	39	$	12	$	80	$	52
Gross proceeds from maturities	32		40		75		67
Total	$	71	$	52	$	155	$	119

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Financial Instruments and Fair Value Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS

Fair Value of Financial Instruments

We use an independent pricing source to determine the fair value of our securities. The independent pricing source utilizes various pricing models for each asset class, including the market approach. The inputs and assumptions for the pricing models are market observable inputs including trades of comparable securities, dealer quotes, credit spreads, yield curves and other market-related data.

We have not adjusted the prices obtained from the independent pricing service and we believe the prices received from the independent pricing service are representative of the prices that would be received to sell the assets at the measurement date (exit price).

The carrying value of the Company's cash equivalents and restricted cash equivalents approximate their fair values due to their short-term maturities.

We did not have any Level 3 financial instruments recognized in our balance sheet as of June 30, 2021 and December 31, 2020. There were no transfers between levels as of June 30, 2021 and December 31, 2020.

Fair Value Measurements on a Recurring Basis

The following tables summarize our financial instruments by significant categories and fair value measurement on a recurring basis as of June 30, 2021 and December 31, 2020.

(in millions)	Level 1		Level 2		Total
June 30, 2021
Cash equivalents:
Money market mutual funds	$	3	$	—	3
Total cash equivalents	3		—		3
Investments:
Asset-backed securities	—		44		44
Corporate bonds	—		132		132
U.S. government agencies and government-sponsored agencies	—		3		3
U.S. treasuries	—		138		138
Other debt securities	—		8		8
Total investments	—		325		325
Restricted cash equivalents:
Money market mutual funds	94		—		94
Certificate of deposit	—		—		—
Commercial paper	—		—		—
Total restricted cash equivalents	94		—		94
Restricted investments:
Corporate bonds	—		37		37
U.S. government agencies and government-sponsored agencies	—		16		16
U.S. treasuries	—		177		177
Certificate of deposit	—		10		10
Total restricted investments	—		240		240
Total cash equivalents and investments and restricted cash equivalents and investments	$	97	$	565	$	662

(in millions)	Level 1		Level 2		Total
December 31, 2020
Cash equivalents
Money market mutual funds	$	2	$	—	$	2
U.S. treasuries	—		11		11
Total cash equivalents	2		11		13
Investments
Asset-backed securities	—		24		24
Corporate bonds	—		93		93
U.S. government agencies and government-sponsored agencies	—		5		5
U.S. treasuries	—		67		67
Other debt securities	—		6		6
Total investments	—		195		195
Restricted cash equivalents:
Money market mutual funds	99		—		99
Total restricted cash equivalents	99		—		99
Restricted investments:
Corporate bonds	—		35		35
U.S. government agencies and government-sponsored agencies	—		23		23
U.S. treasuries	—		198		198
Total restricted investments	—		256		256
Total investments and restricted cash equivalents and investments	$	101	$	462	$	563

Fair Value of Financial Instruments Disclosure

Long-Term Debt

As of December 31, 2020, our long-term debt was floating rate debt and the fair value approximated its carrying value (exclusive of issuance costs). The fair value of our floating rate debt was estimated based on a discounted cash flow, which incorporated credit spreads and market interest rates to estimate the fair value and was considered Level 3 in the hierarchy for fair value measurement.

The fair value of our 2029 Notes was obtained from a third-party pricing service and is based on observable market inputs. As such, the fair value of the senior notes is considered Level 2 in the hierarchy for fair value measurement. As of June 30, 2021, our 2029 Notes were carried at their cost, net of issuance costs, and had a fair value of $495 million.

Derivative Instruments

As of December 31, 2020, the fair value of the interest rate collar derivative, included in accounts payable and other current liabilities, was $1 million and was classified as Level 2 in the fair value hierarchy. In conjunction with the repayment and termination of our 2018 Term Loan, the interest rate collar derivative was terminated and settled and a realized loss of $1 million was recognized in net income for the six months ended June 30, 2021.

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Accrued Workers' Compensation Costs

6 Months Ended

Jun. 30, 2021

Insurance [Abstract]

ACCRUED WORKERS' COMPENSATION COSTS

ACCRUED WORKERS' COMPENSATION COSTS

The following table summarizes the accrued workers’ compensation cost activity for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Total accrued costs, beginning of period	$	205	$	217	$	205	$	214
Incurred
Current year	18		13		33		33
Prior years	(12)		(6)		(15)		(9)
Total incurred	6		7		18		24
Paid
Current year	(2)		(2)		(3)		(3)
Prior years	(11)		(11)		(22)		(24)
Total paid	(13)		(13)		(25)		(27)
Total accrued costs, end of period	$	198	$	211	$	198	$	211

The following summarizes workers' compensation liabilities on the condensed consolidated balance sheets:

(in millions)	June 30, 2021		December 31, 2020
Total accrued costs, end of period	$	198	$	205
Collateral paid to carriers and offset against accrued costs	(8)		(8)
Total accrued costs, net of carrier collateral offset	$	190	$	197
Payable in less than 1 year (net of collateral paid to carriers of $3 at June 30, 2021 and December 31, 2020, respectively)	$	57	$	59
Payable in more than 1 year (net of collateral paid to carriers of $5 at June 30, 2021 and December 31, 2020, respectively)	133		138
Total accrued costs, net of carrier collateral offset	$	190	$	197

Incurred claims related to prior years represent changes in estimates for ultimate losses on workers' compensation claims. For the three and six months ended June 30, 2021, the change was primarily due to lower than expected claim frequency.

As of June 30, 2021 and December 31, 2020, we had $44 million and $45 million, respectively, of collateral held by insurance carriers of which $8 million for both periods was offset against accrued workers' compensation costs as the agreements permit and are net settled of insurance obligations against collateral held.

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Long-Term Debt and Revolving Credit Agreements

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

LONG-TERM DEBT AND REVOLVING CREDIT AGREEMENTS

LONG-TERM DEBT AND REVOLVING CREDIT AGREEMENTS

As of June 30, 2021 and December 31, 2020, our long-term debt consisted of the following:

(in millions)	June 30, 2021			December 31, 2020
2018 Term Loan A	$	—		$	370
2029 Notes	500			—
Principal amount	500			370
Deferred issuance costs	(5)			—
Less: current portion	—			(22)
Long-term debt, noncurrent	$	495		$	348
Annual contractual interest rate	3.50		%	1.77		%
Effective interest rate	3.67		%	1.87		%

In June 2018 we entered into a $425 million term loan A (our 2018 Term Loan) under our 2018 credit agreement (our 2018 Credit Agreement). The 2018 Credit Agreement included a $250 million revolving credit facility (our 2018 Revolver). The 2018 Credit Agreement was terminated in February 2021.

In February 2021, we issued $500 million aggregate principal of 3.50% senior unsecured notes maturing in March 2029 (our 2029 Notes). The 2029 Notes are a senior unsecured obligation of TriNet Group, Inc. and rank equally with all of its existing and future senior unsecured indebtedness. Interest payments on the 2029 Notes are due semi-annually in arrears on March 1 and September 1, beginning on September 1, 2021. The net proceeds were used to repay and terminate our 2018 Term Loan and for general corporate purposes.

We may voluntarily redeem the 2029 Notes, in whole or in part, 1) at any time prior to March 1, 2024 at (a) 100% of their principal amount, plus a “make whole” premium or (b) with the net cash proceeds received from an equity offering at a redemption price equal to 103.50% of the principal amount, provided the aggregate principal amount of all such redemptions does not exceed 40% of the original aggregate principal amount of the 2029 Notes; 2) at any time on or after March 1, 2024 at a prepayment price equal to 101.75% of the principal amount; 3) at any time on or after March 1, 2025 at a prepayment price equal to 100.875%of the principal amount; and 4) at any time on or after March 1, 2026 at a prepayment price equal to 100% of the principal amount; in each case, plus accrued and unpaid interest, if any, to but excluding, the date of redemption.

In February 2021, concurrently with the closing of the 2029 Notes offering, we entered into a new $500 million revolving facility (our 2021 Revolver) under a new credit agreement (our 2021 Credit Agreement) and the 2018 Credit Agreement was terminated. Letters of credit issued pursuant to the revolving facility reduce the amount available for borrowing under the 2021 Revolver. As of June 30, 2021, we had remaining capacity of $491 million under our 2021 Revolver.

The annual interest rate for borrowings under our 2021 Revolver is calculated based on an applicable London Interbank Offered Rate (LIBOR) tenor of our choosing, plus a margin of 1.25% to 2.00%, or, at our option, the alternative base rate (ABR), plus a margin of 0.25% to 1.00%. The applicable LIBOR or ABR margin is based on our Total Leverage Ratio, as defined in the 2021 Credit Agreement. The ABR is the highest of (a) the applicable Federal Reserve Bank of New York rate, as defined in our 2021 Credit Agreement plus 0.50% (b) the prime rate, and (c) one month LIBOR adjusted daily plus 1.00%.

In the event TriNet Group, Inc. receives a Corporate Issuer Credit Rating that is one level below investment grade rating or higher from at least two Nationally Recognized Statistical Rating Organizations, then rating based pricing applies and, for so long as rating based pricing applies, irrespective of the Total Leverage Ratio, the LIBOR margin will be 1.125% and the ABR margin will be 0.125%.

The indenture governing our 2029 Notes includes restrictive covenants limiting our ability to: (i) create liens on certain assets to secure debt; (ii) grant a subsidiary guarantee of certain debt without also providing a guarantee of the 2029 Notes; and (iii) consolidate or merge with or into, or sell or otherwise dispose of all or substantially all of our assets to, another person, subject, in each case, to certain customary exceptions.

The 2021 Credit Agreement includes negative covenants that limit our ability to incur indebtedness and liens, sell assets and make restricted payments, including dividends and investments, subject to certain exceptions. In addition, the 2021 Credit Agreement also contains other customary affirmative and negative covenants and customary events of default. The 2021 Credit Agreement also contains a financial covenant that requires the Company to maintain certain maximum total net leverage ratios. We were in compliance with all financial covenants under the 2021 Credit Agreement at June 30, 2021.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2021

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES

Contingencies

On September 29, 2020, a class action was filed in the United States District Court for the Middle District of Florida against the directors of certain TriNet subsidiaries and other TriNet employees on behalf of participants in two retirement plans available to TriNet’s eligible worksite employees, the TriNet 401(k) Plan and the TriNet Select 401(k) Plan. The complaint is similar to claims recently brought against a number of employers including PEOs and generally alleges that the defendants violated certain fiduciary obligations to Plan participants under the Employee Retirement Income Security Act of 1974 with respect to overseeing plan investment and recordkeeping fees. These claims are in the early stages, and we are unable to reasonably estimate any possible loss, or range of loss, with respect to this matter. We believe the claims are without merit.

We are and, from time to time, have been and may in the future become involved in various litigation matters, legal proceedings, and claims arising in the ordinary course of our business, including disputes with our clients or various class action, collective action, representative action, and other proceedings arising from the nature of our co-employment relationship with our clients and WSEs in which we are named as a defendant. In addition, due to the nature of our co-employment relationship with our clients and WSEs, we could be subject to liability for federal and state law violations, even if we do not participate in such violations. While our agreements with our clients contain indemnification provisions related to the conduct of our clients, we may not be able to avail ourselves of such provisions in every instance. We have accrued our current best estimates of probable losses with respect to these matters, which are individually and in aggregate immaterial to our consolidated financial statements.

While the outcome of the matters described above cannot be predicted with certainty, management currently does not believe that any such claims or proceedings will have a materially adverse effect on our consolidated financial position, results of operations, or cash flows. However, the unfavorable resolution of any particular matter or our reassessment of our exposure for any of the above matters based on additional information obtained in the future could have a material impact on our consolidated financial position, results of operations, or cash flows.

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Stock Based Compensation

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

STOCK BASED COMPENSATION

STOCK BASED COMPENSATION

Restricted Stock Units (RSUs) and Restricted Stock Awards (RSAs)

Time-based RSUs and RSAs generally vest over a four-year term. Performance-based RSUs and RSAs are subject to vesting requirements and are earned, in part, based on certain financial performance metrics as defined in the grant notice. Actual number of shares earned may range from 0% to 200% of the target award. Performance-based awards granted in 2021 and 2020 are earned based on a single-year performance period subject to subsequent multi-year time-based vesting with 50% of the shares earned vesting in one year after the performance period and the remaining shares in the year after. RSUs and RSAs are generally forfeited if the participant terminates service prior to vesting.

The following tables summarize RSU and RSA activity for the six months ended June 30, 2021:

Time-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	1,230,071	30,026	1,260,097	$	54.04
Granted	491,136	—	491,136	82.72
Vested	(343,508)	(12,797)	(356,305)	50.45
Forfeited	(94,764)	—	(94,764)	58.05
Nonvested at June 30, 2021	1,282,935	17,229	1,300,164	$	65.57

Performance-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	167,127	16,052	183,179	$	52.89
Granted	246,349	—	246,349	67.70
Vested	(3,010)	(16,052)	(19,062)	47.61
Forfeited	(9,459)	—	(9,459)	52.86
Nonvested at June 30, 2021	401,007	—	401,007	$	62.24

Stock Based Compensation

Stock based compensation expense for stock based awards made to our employees pursuant to our equity plans were as follows:  

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Cost of providing services	$	3	$	3	$	6	$	5
Sales and marketing	2		1		3		3
General and administrative	7		6		13		11
Systems development and programming costs	1		1		2		1
Total stock based compensation expense	$	13	$	11	$	24	$	20

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Stockholders' Equity

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS’ EQUITY

Common Stock

The following table shows the beginning and ending balances of our issued and outstanding common stock for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Shares issued and outstanding, beginning balance	65,881,233	68,470,050	66,456,663	69,065,491
Issuance of common stock from vested restricted stock units	130,560	168,621	346,518	342,250
Issuance of common stock from exercise of stock options	8,894	11,136	29,735	40,609
Issuance of common stock for employee stock purchase plan	74,070	130,532	74,070	130,532
Repurchase of common stock	(181,250)	(1,419,984)	(925,251)	(2,167,401)
Awards effectively repurchased for required employee withholding taxes	(49,391)	(67,491)	(117,619)	(118,617)
Shares issued and outstanding, ending balance	65,864,116	67,292,864	65,864,116	67,292,864

Stock Repurchases

During the six months ended June 30, 2021, we repurchased 925,251 shares of common stock for approximately $74 million. We retire shares in the period they are acquired and account for the payment as a reduction to stockholders' equity. As of June 30, 2021, approximately $284 million remained available for further repurchases of our common stock under all authorizations from our board of directors under this program. This repurchase authorization has no expiration.

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Income Taxes

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

INCOME TAXES

INCOME TAXES

Our effective tax rate (ETR) was 22% and 26% for the three months ended June 30, 2021 and 2020, respectively, and 24% and 26% for the six months ended June 30, 2021 and 2020, respectively. The decrease when comparing the quarter and year to date rates for 2021 with the same periods in 2020 was primarily due to benefits associated with a favorable adjustment of our previously disputed receivable from the IRS and an increase in tax benefits related to stock-based compensation.

During the six months ended June 30, 2021, there was a decrease of $1 million in our unrecognized tax benefits. The total amount of gross interest and penalties accrued was immaterial. It is reasonably possible the amount of the unrecognized benefit could increase or decrease within the next 12 months for which an estimate of the impact on net income cannot be made.

We are subject to tax in U.S. federal and various state and local jurisdictions, as well as Canada. We are open to federal and significant state income tax examinations for tax years 2016 and subsequent years.

We previously paid Notices of Proposed Assessments disallowing employment tax credits totaling $11 million, plus interest of $4 million in connection with the IRS examination of Gevity HR, Inc. and its subsidiaries, which was acquired by TriNet in June 2009. TriNet filed suit in June 2016 to recover the disallowed credits, and the issue is being resolved through the litigation process. TriNet and the U.S. filed cross motions for summary judgment in federal district court. On September 17, 2018, the district court granted our motion for summary judgment and denied the U.S.'s motion. On January 18, 2019, the district court entered judgment in favor of TriNet in the amount of $15 million, plus interest. The U.S. filed a notice of appeal of the federal district court's decision on March 18, 2019. The U.S. filed its opening brief in the court of appeals on June 10, 2019 and we filed our answering brief on July 24, 2019 to which the government filed its reply brief on September 6, 2019. Oral arguments occurred on March 11, 2020. On November 5, 2020, the court of appeals affirmed the district court’s judgement in favor of TriNet. The April 5, 2021 deadline for the IRS to petition the Supreme Court for review passed without a petition. TriNet will pursue recovery of the judgment.

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Earnings Per Share (EPS)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

EARNINGS PER SHARE (EPS)

EARNINGS PER SHARE (EPS)

The following table presents the computation of our basic and diluted EPS attributable to our common stock:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions, except per share data)	2021		2020		2021		2020
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Basic EPS	$	1.38	$	1.88	$	2.91	$	3.16
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Dilutive effect of stock options and restricted stock units	1		1		1		1
Weighted average shares of common stock outstanding	67		68		67		70
Diluted EPS	$	1.37	$	1.87	$	2.87	$	3.13
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect	1		1		1		2

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Description of Business and Significant Accounting Policies - (Policies)

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Segment Information

We operate in one reportable segment. All of our service revenues are generated from external clients. Less than 1% of our revenue is generated outside of the U.S.

Basis of Presentation

These unaudited condensed consolidated financial statements and accompanying notes have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial reporting and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X of the Rules and Regulations of the Securities and Exchange Commission. Certain information and note disclosures included in our annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the condensed consolidated financial statements reflect all adjustments, that are normal and recurring in nature, necessary for fair financial statement presentation. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the operating results anticipated for the full year. These financial statements should be read in conjunction with the audited Consolidated Financial Statements included in Part II, Item 8. Financial Statements and Supplementary Data of our Annual Report on Form 10-K for the year ended December 31, 2020 (2020 Form 10-K).

Use of Estimates

The preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect certain reported amounts and related disclosures.

These estimates are based on historical experience and on various other assumptions that we believe to be reasonable from the facts available to us. Some of the assumptions are highly uncertain at the time of estimation. To the extent actual experience differs from the assumptions used, our consolidated financial statements could be materially affected.

Revenue Recognition

In April 2020, we created our Recovery Credit program to assist in the economic recovery of our existing SMB clients and enhance our ability to retain these clients. Under this one-time program eligible clients will receive reductions against fees for future services, accounted for as a discount, over the following 12 months. This option to renew future services at a discount represents a material right and is accounted for as a performance obligation (Recovery Credit). This performance obligation will be satisfied when the clients have successfully renewed the services contracts and the future services are transferred. The consideration we receive that is allocated to this performance obligation is deferred as an unsatisfied performance obligation and is included in client deposits and other client liabilities on the balance sheet.Variable Consideration and Pricing AllocationOur contracts with clients generally do not include any variable consideration. However, from time to time, we may offer credits to our clients considered to be variable consideration. Incentive credits related to contract renewals are recorded as a reduction to revenue as part of the transaction price at contract inception and are allocated among the performance obligations based on their relative standalone selling prices. Credits based on the performance of our insurance costs are recorded as a reduction to insurance services revenues and included in client deposits and other client liabilities on the balance sheet.

Accrued Health Insurance Costs

We sponsor and administer a number of employee benefit plans, including group health, dental, and vision as an employer plan sponsor under section 3(5) of the ERISA. In the six months ended June 30, 2021, a majority of our group health insurance costs related to risk-based plans. Our remaining group health insurance costs were for guaranteed-cost policies.

Accrued health insurance costs are established to provide for the estimated unpaid costs of reimbursing the carriers for paying claims within the deductible layer in accordance with risk-based health insurance policies. These accrued costs include estimates for reported losses, plus estimates for claims incurred but not paid. We assess accrued health insurance costs regularly based upon external actuarial studies that include other relevant factors such as current and historical claims payment patterns, plan enrollment and medical trend rates.

In certain carrier contracts we are required to prepay the expected claims activity for subsequent periods. These prepaid balances by agreement permit net settlement of obligations and offset the accrued health insurance costs.

Fair Value Measurement

We use an independent pricing source to determine the fair value of our securities. The independent pricing source utilizes various pricing models for each asset class, including the market approach. The inputs and assumptions for the pricing models are market observable inputs including trades of comparable securities, dealer quotes, credit spreads, yield curves and other market-related data.

We have not adjusted the prices obtained from the independent pricing service and we believe the prices received from the independent pricing service are representative of the prices that would be received to sell the assets at the measurement date (exit price).

The carrying value of the Company's cash equivalents and restricted cash equivalents approximate their fair values due to their short-term maturities.

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Description of Business and Significant Accounting Policies - (Tables)

6 Months Ended

Jun. 30, 2021

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable

The change in the balance of the Recovery Credit unsatisfied performance obligation was as follows:

	June 30, 2021
(in millions)	Three Months Ended		Six Months Ended
Balance at beginning of period	$	77	$	92
(+) Accruals	5		17
(-) Distributions to clients	(19)		(46)
Balance at end of period	$	63	$	63

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Cash, Cash Equivalents and Investments - Unrestricted and Restricted - (Tables)

6 Months Ended

Jun. 30, 2021

Cash and Cash Equivalents [Abstract]

Summary of Cash, Cash Equivalents and Investments

Our total cash, cash equivalents and investments are summarized below:

	June 30, 2021						December 31, 2020
(in millions)	Cash and cash equivalents		Available-for-sale marketable securities		Total		Cash and cash equivalents		Available-for-sale marketable securities		Total
Cash and cash equivalents	$	464	$	—	$	464	$	301	$	—	$	301
Investments	—		131		131		—		57		57
Restricted cash, cash equivalents and investments:
Payroll funds collected	783		—		783		1,228		—		1,228
Collateral for health benefits claims	23		89		112		16		82		98
Collateral for workers' compensation claims	61		—		61		60		—		60
Other security deposits	2		—		2		2		—		2
Total restricted cash, cash equivalents and investments	869		89		958		1,306		82		1,388
Investments, noncurrent	—		194		194		—		138		138
Restricted cash, cash equivalents and investments, noncurrent
Collateral for workers' compensation claims	28		151		179		36		174		210
Total	$	1,361	$	565	$	1,926	$	1,643	$	451	$	2,094

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Investments - (Tables)

6 Months Ended

Jun. 30, 2021

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities

The amortized cost, gross unrealized gains, gross unrealized losses, and fair values of our AFS investments as of June 30, 2021 and December 31, 2020 are presented below:

	June 30, 2021								December 31, 2020
(in millions)	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
Asset-backed securities	$	44	$	—	$	—	$	44	$	24	$	—	$	—	$	24
Corporate bonds	167		2		—		169		126		2		—		128
U.S. government agencies and government- sponsored agencies	19		—		—		19		27		1		—		28
U.S. treasuries	312		3		—		315		261		4		—		265
Certificate of deposit	10		—		—		10		—		—		—		—
Other debt securities	8		—		—		8		6		—		—		6
Total	$	560	$	5	$	—	$	565	$	444	$	7	$	—	$	451

The gross proceeds from sales and maturities of AFS securities for the three and six months ended June 30, 2021 and June 30, 2020 are presented below. We had immaterial gross realized gains and losses from sales of investments for the three and six months ended June 30, 2021 and 2020.

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Gross proceeds from sales	$	39	$	12	$	80	$	52
Gross proceeds from maturities	32		40		75		67
Total	$	71	$	52	$	155	$	119

Fair Value of Debt Investments by Contractual Maturity

The fair value of debt investments by contractual maturity are shown below:

(in millions)	June 30, 2021
One year or less	$	188
Over one year through five years	340
Over five years through ten years	7
Over ten years	30
Total fair value	$	565

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Financial Instruments and Fair Value Measurements - (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Summary of Financial Instruments by Significant Categories and Fair Value Measurement on a Recurring Basis

The following tables summarize our financial instruments by significant categories and fair value measurement on a recurring basis as of June 30, 2021 and December 31, 2020.

(in millions)	Level 1		Level 2		Total
June 30, 2021
Cash equivalents:
Money market mutual funds	$	3	$	—	3
Total cash equivalents	3		—		3
Investments:
Asset-backed securities	—		44		44
Corporate bonds	—		132		132
U.S. government agencies and government-sponsored agencies	—		3		3
U.S. treasuries	—		138		138
Other debt securities	—		8		8
Total investments	—		325		325
Restricted cash equivalents:
Money market mutual funds	94		—		94
Certificate of deposit	—		—		—
Commercial paper	—		—		—
Total restricted cash equivalents	94		—		94
Restricted investments:
Corporate bonds	—		37		37
U.S. government agencies and government-sponsored agencies	—		16		16
U.S. treasuries	—		177		177
Certificate of deposit	—		10		10
Total restricted investments	—		240		240
Total cash equivalents and investments and restricted cash equivalents and investments	$	97	$	565	$	662

(in millions)	Level 1		Level 2		Total
December 31, 2020
Cash equivalents
Money market mutual funds	$	2	$	—	$	2
U.S. treasuries	—		11		11
Total cash equivalents	2		11		13
Investments
Asset-backed securities	—		24		24
Corporate bonds	—		93		93
U.S. government agencies and government-sponsored agencies	—		5		5
U.S. treasuries	—		67		67
Other debt securities	—		6		6
Total investments	—		195		195
Restricted cash equivalents:
Money market mutual funds	99		—		99
Total restricted cash equivalents	99		—		99
Restricted investments:
Corporate bonds	—		35		35
U.S. government agencies and government-sponsored agencies	—		23		23
U.S. treasuries	—		198		198
Total restricted investments	—		256		256
Total investments and restricted cash equivalents and investments	$	101	$	462	$	563

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Accrued Workers' Compensation Costs- (Tables)

6 Months Ended

Jun. 30, 2021

Insurance [Abstract]

Summary of Activities in Liability for Unpaid Claims and Claims Adjustment Expenses

The following table summarizes the accrued workers’ compensation cost activity for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Total accrued costs, beginning of period	$	205	$	217	$	205	$	214
Incurred
Current year	18		13		33		33
Prior years	(12)		(6)		(15)		(9)
Total incurred	6		7		18		24
Paid
Current year	(2)		(2)		(3)		(3)
Prior years	(11)		(11)		(22)		(24)
Total paid	(13)		(13)		(25)		(27)
Total accrued costs, end of period	$	198	$	211	$	198	$	211

The following summarizes workers' compensation liabilities on the condensed consolidated balance sheets:

(in millions)	June 30, 2021		December 31, 2020
Total accrued costs, end of period	$	198	$	205
Collateral paid to carriers and offset against accrued costs	(8)		(8)
Total accrued costs, net of carrier collateral offset	$	190	$	197
Payable in less than 1 year (net of collateral paid to carriers of $3 at June 30, 2021 and December 31, 2020, respectively)	$	57	$	59
Payable in more than 1 year (net of collateral paid to carriers of $5 at June 30, 2021 and December 31, 2020, respectively)	133		138
Total accrued costs, net of carrier collateral offset	$	190	$	197

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Long-Term Debt and Revolving Credit Agreements - (Tables)

6 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Revolving Credit Agreement Borrowings

As of June 30, 2021 and December 31, 2020, our long-term debt consisted of the following:

(in millions)	June 30, 2021			December 31, 2020
2018 Term Loan A	$	—		$	370
2029 Notes	500			—
Principal amount	500			370
Deferred issuance costs	(5)			—
Less: current portion	—			(22)
Long-term debt, noncurrent	$	495		$	348
Annual contractual interest rate	3.50		%	1.77		%
Effective interest rate	3.67		%	1.87		%

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Stock Based Compensation - (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of RSU and RSA Activity Under Equity-Based Plans

The following tables summarize RSU and RSA activity for the six months ended June 30, 2021:

Time-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	1,230,071	30,026	1,260,097	$	54.04
Granted	491,136	—	491,136	82.72
Vested	(343,508)	(12,797)	(356,305)	50.45
Forfeited	(94,764)	—	(94,764)	58.05
Nonvested at June 30, 2021	1,282,935	17,229	1,300,164	$	65.57

Performance-based RSUs and RSAs

	Total Number of RSUs	Total Number of RSAs	Total Number of Shares	Weighted-Average Grant Date Fair Value
Nonvested at December 31, 2020	167,127	16,052	183,179	$	52.89
Granted	246,349	—	246,349	67.70
Vested	(3,010)	(16,052)	(19,062)	47.61
Forfeited	(9,459)	—	(9,459)	52.86
Nonvested at June 30, 2021	401,007	—	401,007	$	62.24

Stock-based Compensation Expense

Stock based compensation expense for stock based awards made to our employees pursuant to our equity plans were as follows:  

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions)	2021		2020		2021		2020
Cost of providing services	$	3	$	3	$	6	$	5
Sales and marketing	2		1		3		3
General and administrative	7		6		13		11
Systems development and programming costs	1		1		2		1
Total stock based compensation expense	$	13	$	11	$	24	$	20

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Stockholders' Equity - (Tables)

6 Months Ended

Jun. 30, 2021

Equity [Abstract]

Schedule of Common Stock

The following table shows the beginning and ending balances of our issued and outstanding common stock for the three and six months ended June 30, 2021 and 2020:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Shares issued and outstanding, beginning balance	65,881,233	68,470,050	66,456,663	69,065,491
Issuance of common stock from vested restricted stock units	130,560	168,621	346,518	342,250
Issuance of common stock from exercise of stock options	8,894	11,136	29,735	40,609
Issuance of common stock for employee stock purchase plan	74,070	130,532	74,070	130,532
Repurchase of common stock	(181,250)	(1,419,984)	(925,251)	(2,167,401)
Awards effectively repurchased for required employee withholding taxes	(49,391)	(67,491)	(117,619)	(118,617)
Shares issued and outstanding, ending balance	65,864,116	67,292,864	65,864,116	67,292,864

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Earnings Per Share (EPS) - (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted EPS

The following table presents the computation of our basic and diluted EPS attributable to our common stock:

	Three Months Ended June 30,				Six Months Ended June 30,
(in millions, except per share data)	2021		2020		2021		2020
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Basic EPS	$	1.38	$	1.88	$	2.91	$	3.16
Net income	$	91	$	126	$	192	$	217
Weighted average shares of common stock outstanding	66		67		66		69
Dilutive effect of stock options and restricted stock units	1		1		1		1
Weighted average shares of common stock outstanding	67		68		67		70
Diluted EPS	$	1.37	$	1.87	$	2.87	$	3.13
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect	1		1		1		2

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Description of Business and Significant Accounting Policies - Narrative (Details) $ in Millions	1 Months Ended	6 Months Ended
	Apr. 30, 2021 USD ($)	Jun. 30, 2021 USD ($) segment	Dec. 31, 2020 USD ($)
Product Information [Line Items]
Number of reportable segments | segment		1
Performance obligation period (in months)	12 months
Recovery credit program, maximum allowed amount	$ 145
Incentive credits		$ 25
Prepayments offsetting accrued health insurance costs		$ 54	$ 49
Non-US | Revenue | Foreign Sales
Product Information [Line Items]
Percent of concentration risk (less than)		1.00%
Health Care
Product Information [Line Items]
Prepayments offsetting accrued health insurance costs		$ 69	$ 58

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Description of Business and Significant Accounting Policies - Unsatisfied Performance Obligation (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Unsatisfied Performance Obligation [Roll Forward]
Balance at beginning of period	$ 77	$ 92
(+) Accruals	5	17
(-) Distributions to clients	(19)	(46)
Balance at end of period	$ 63	$ 63

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Cash, Cash Equivalents and Investments - Unrestricted and Restricted - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 464	$ 301
Investments	131	57
Total restricted cash, cash equivalents and investments	958	1,388
Investments, noncurrent	194	138
Collateral for workers' compensation claims	179	210
Total cash equivalents and investments and restricted cash equivalents and investments	1,926	2,094
Cash and cash equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	464	301
Investments	0	0
Total restricted cash, cash equivalents and investments	869	1,306
Investments, noncurrent	0	0
Total cash equivalents and investments and restricted cash equivalents and investments	1,361	1,643
Available-for-sale marketable securities
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	0	0
Investments	131	57
Total restricted cash, cash equivalents and investments	89	82
Investments, noncurrent	194	138
Total cash equivalents and investments and restricted cash equivalents and investments	565	451
Payroll funds collected
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	783	1,228
Payroll funds collected | Cash and cash equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	783	1,228
Payroll funds collected | Available-for-sale marketable securities
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	0	0
Collateral for health benefits claims
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	112	98
Collateral for health benefits claims | Cash and cash equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	23	16
Collateral for health benefits claims | Available-for-sale marketable securities
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	89	82
Collateral for workers' compensation claims
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	61	60
Collateral for workers' compensation claims	179	210
Collateral for workers' compensation claims | Cash and cash equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	61	60
Collateral for workers' compensation claims	28	36
Collateral for workers' compensation claims | Available-for-sale marketable securities
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	0	0
Collateral for workers' compensation claims	151	174
Other security deposits
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	2	2
Other security deposits | Cash and cash equivalents
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	2	2
Other security deposits | Available-for-sale marketable securities
Restricted Cash and Cash Equivalents Items [Line Items]
Total restricted cash, cash equivalents and investments	$ 0	$ 0

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Investments - Amortized Cost, Gross Unrealized Gains and Losses, Fair Values of Investments (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Debt Securities
Amortized Cost	$ 560	$ 444
Gross Unrealized Gains	5	7
Gross Unrealized Losses	0	0
Fair Value	565	451
Asset-backed securities
Debt Securities
Amortized Cost	44	24
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	44	24
Corporate bonds
Debt Securities
Amortized Cost	167	126
Gross Unrealized Gains	2	2
Gross Unrealized Losses	0	0
Fair Value	169	128
U.S. government agencies and government- sponsored agencies
Debt Securities
Amortized Cost	19	27
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	19	28
U.S. treasuries
Debt Securities
Amortized Cost	312	261
Gross Unrealized Gains	3	4
Gross Unrealized Losses	0	0
Fair Value	315	265
Certificate of deposits
Debt Securities
Amortized Cost	10	0
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	10	0
Other debt securities
Debt Securities
Amortized Cost	8	6
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 8	$ 6

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Investments - Fair Value of Debt Investments by Contractual Maturity (Details) $ in Millions	Jun. 30, 2021 USD ($)
Investments, Debt and Equity Securities [Abstract]
One year or less	$ 188
Over one year through five years	340
Over five years through ten years	7
Over ten years	30
Total fair value	$ 565

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Investments - Proceeds from available-for-sale securities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Investments, Debt and Equity Securities [Abstract]
Gross proceeds from sales	$ 39	$ 12	$ 80	$ 52
Gross proceeds from maturities	32	40	75	67
Total	$ 71	$ 52	$ 155	$ 119

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Financial Instruments and Fair Value Measurements - Summary of Financial Instruments by Significant Categories and Fair Value Measurement on a Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Financial Instruments [Line Items]
Total investments	$ 565	$ 451
Total cash equivalents and investments and restricted cash equivalents and investments	1,926	2,094
Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	3	13
Total investments	325	195
Total restricted cash equivalents	94	99
Total restricted investments	240	256
Total cash equivalents and investments and restricted cash equivalents and investments	662	563
Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	3	2
Total investments	0	0
Total restricted cash equivalents	94	99
Total restricted investments	0	0
Total cash equivalents and investments and restricted cash equivalents and investments	97	101
Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	0	11
Total investments	325	195
Total restricted cash equivalents	0	0
Total restricted investments	240	256
Total cash equivalents and investments and restricted cash equivalents and investments	565	462
Money market mutual funds | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	3	2
Total restricted cash equivalents	94	99
Money market mutual funds | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	3	2
Total restricted cash equivalents	94	99
Money market mutual funds | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total cash equivalents	0	0
Total restricted cash equivalents	0	0
U.S. treasuries | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total cash equivalents		11
U.S. treasuries | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total cash equivalents		0
U.S. treasuries | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total cash equivalents		11
Certificate of deposits | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Certificate of deposits | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Certificate of deposits | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Commercial paper | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Commercial paper | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Commercial paper | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total restricted cash equivalents	0
Asset-backed securities
Fair Value, Financial Instruments [Line Items]
Total investments	44	24
Asset-backed securities | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total investments	44	24
Asset-backed securities | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total investments	0	0
Asset-backed securities | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total investments	44	24
Corporate bonds
Fair Value, Financial Instruments [Line Items]
Total investments	169	128
Corporate bonds | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total investments	132	93
Total restricted investments	37	35
Corporate bonds | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total investments	0	0
Total restricted investments	0	0
Corporate bonds | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total investments	132	93
Total restricted investments	37	35
U.S. government agencies and government- sponsored agencies
Fair Value, Financial Instruments [Line Items]
Total investments	19	28
U.S. government agencies and government- sponsored agencies | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total investments	3	5
Total restricted investments	16	23
U.S. government agencies and government- sponsored agencies | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total investments	0	0
Total restricted investments	0	0
U.S. government agencies and government- sponsored agencies | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total investments	3	5
Total restricted investments	16	23
U.S. treasuries
Fair Value, Financial Instruments [Line Items]
Total investments	315	265
U.S. treasuries | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total investments	138	67
Total restricted investments	177	198
U.S. treasuries | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total investments	0	0
Total restricted investments	0	0
U.S. treasuries | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total investments	138	67
Total restricted investments	177	198
Other debt securities
Fair Value, Financial Instruments [Line Items]
Total investments	8	6
Other debt securities | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total investments	8	6
Other debt securities | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total investments	0	0
Other debt securities | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total investments	8	6
Certificate of deposits
Fair Value, Financial Instruments [Line Items]
Total investments	10	$ 0
Certificate of deposits | Fair Value Measurement on a Recurring Basis
Fair Value, Financial Instruments [Line Items]
Total restricted investments	10
Certificate of deposits | Fair Value Measurement on a Recurring Basis | Level 1
Fair Value, Financial Instruments [Line Items]
Total restricted investments	0
Certificate of deposits | Fair Value Measurement on a Recurring Basis | Level 2
Fair Value, Financial Instruments [Line Items]
Total restricted investments	$ 10

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Financial Instruments and Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Fair Value Measurement on a Recurring Basis | Interest Rate Contract | Level 2
Debt Instrument [Line Items]
Derivative liability		$ 1
Loss on derivative instruments	$ (1)
2029 Notes Payable
Debt Instrument [Line Items]
Fair value of notes payable	$ 495

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Accrued Workers' Compensation Costs - Summary of Workers' Compensation Loss Reserve Activity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Total accrued costs, beginning of period	$ 205	$ 217	$ 205	$ 214
Incurred
Current year	18	13	33	33
Prior years	(12)	(6)	(15)	(9)
Total incurred	6	7	18	24
Paid
Current year	(2)	(2)	(3)	(3)
Prior years	(11)	(11)	(22)	(24)
Total paid	(13)	(13)	(25)	(27)
Total accrued costs, end of period	$ 198	$ 211	$ 198	$ 211

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Accrued Workers' Compensation Costs - Summary of Workers' Compensation Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Insurance [Abstract]
Total accrued costs, end of period	$ 198	$ 205	$ 205	$ 211	$ 217	$ 214
Collateral paid to carriers and offset against accrued costs	(8)		(8)
Total accrued costs, net of carrier collateral offset	190		197
Payable in less than 1 year (net of collateral paid to carriers)	57		59
Payable in more than 1 year (net of collateral paid to carriers)	133		138
Net of collateral paid to carriers, payable in less than one year	3		3
Net of collateral paid to carriers, payable in more than 1 year	$ 5		$ 5

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Accrued Workers' Compensation Costs - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Insurance [Abstract]
Collateral held by insurance carriers	$ 44	$ 45
Liability for unpaid claims and claims adjustment expense, collateral	$ 8	$ 8

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Long-Term Debt and Revolving Credit Agreements - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Line of Credit Facility [Line Items]
Principal amount	$ 500	$ 370
Deferred issuance costs	(5)	0
Less: current portion	0	(22)
Long-term debt, noncurrent	$ 495	$ 348
Annual contractual interest rate	3.50%	1.77%
Effective interest rate	3.67%	1.87%
2018 Term Loan A | Loans Payable
Line of Credit Facility [Line Items]
Principal amount	$ 0	$ 370
2029 Notes Payable | Loans Payable
Line of Credit Facility [Line Items]
Principal amount	$ 500	$ 0

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Long-Term Debt and Revolving Credit Agreements - Narrative (Details) - USD ($)	1 Months Ended
	Feb. 28, 2021	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2018
Line of Credit Facility [Line Items]
Annual contractual interest rate		3.50%	1.77%
2018 Term Loan A | Loans Payable
Line of Credit Facility [Line Items]
Debt instrument, face amount				$ 425,000,000
2018 Revolver | Revolving Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity				$ 250,000,000
2029 Notes Payable | Senior Notes
Line of Credit Facility [Line Items]
Debt instrument, face amount	$ 500,000,000
Annual contractual interest rate	3.50%
2029 Notes Payable | Senior Notes | Before March, 01, 2024 | Full Redemption
Line of Credit Facility [Line Items]
Redemption price percentage	100.00%
2029 Notes Payable | Senior Notes | Before March, 01, 2024 | Partial Redemption
Line of Credit Facility [Line Items]
Redemption price percentage	103.50%
Percentage of principal amount redeemed	40.00%
2029 Notes Payable | Senior Notes | After March, 01, 2024
Line of Credit Facility [Line Items]
Redemption price percentage	101.75%
2029 Notes Payable | Senior Notes | March 01, 2025
Line of Credit Facility [Line Items]
Redemption price percentage	100.875%
2029 Notes Payable | Senior Notes | March, 01, 2026
Line of Credit Facility [Line Items]
Redemption price percentage	100.00%
2021 Revolving Credit Facility | Revolving Credit Facility | Line of credit
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 500,000,000
Remaining borrowing capacity		$ 491,000,000
2021 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of credit
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
2021 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of credit | Credit Rating Below Investment Grade
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.125%
2021 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of credit | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.25%
2021 Revolving Credit Facility | London Interbank Offered Rate (LIBOR) | Revolving Credit Facility | Line of credit | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.00%
2021 Revolving Credit Facility | Base Rate | Revolving Credit Facility | Line of credit | Credit Rating Below Investment Grade
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.125%
2021 Revolving Credit Facility | Base Rate | Revolving Credit Facility | Line of credit | Minimum
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.25%
2021 Revolving Credit Facility | Base Rate | Revolving Credit Facility | Line of credit | Maximum
Line of Credit Facility [Line Items]
Basis spread on variable rate	1.00%
2021 Revolving Credit Facility | Fed Funds Effective Rate Overnight Index Swap Rate | Revolving Credit Facility | Line of credit
Line of Credit Facility [Line Items]
Basis spread on variable rate	0.50%

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Commitments and Contingencies - Narrative (Details)	Sep. 29, 2020 retirementPlan
Commitments and Contingencies Disclosure [Abstract]
Number of retirement plans subject to class action	2

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Stock Based Compensation - Narrative (Details)	6 Months Ended
	Jun. 30, 2021
Time-based RSUs and RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years
Time-based RSUs and RSAs | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of share value	0.00%
Time-based RSUs and RSAs | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent of share value	200.00%
Performance-based RSUs and RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period for 2021 and 2020 awards	1 year
Performance-based RSUs and RSAs | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	1 year
Amount of shares that are expected to vest (as a percent )	50.00%

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Stock Based Compensation - Summary Of RSU And RSA Activity (Details)	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Time-based RSUs and RSAs
Number of Shares
Balance (in shares)	1,260,097
Granted (in shares)	491,136
Vested (in shares)	(356,305)
Forfeited (in shares)	(94,764)
Balance (in shares)	1,300,164
Weighted-Average Grant Date Fair Value
Balance (in dollars per share) | $ / shares	$ 54.04
Granted (in dollars per share) | $ / shares	82.72
Vested (in dollars per share) | $ / shares	50.45
Forfeited (in dollars per share) | $ / shares	58.05
Balance (in dollars per share) | $ / shares	$ 65.57
Time-Based Restricted Stock Units
Number of Shares
Balance (in shares)	1,230,071
Granted (in shares)	491,136
Vested (in shares)	(343,508)
Forfeited (in shares)	(94,764)
Balance (in shares)	1,282,935
Time-Based Restricted Stock Awards
Number of Shares
Balance (in shares)	30,026
Granted (in shares)	0
Vested (in shares)	(12,797)
Forfeited (in shares)	0
Balance (in shares)	17,229
Performance-based RSUs and RSAs
Number of Shares
Balance (in shares)	183,179
Granted (in shares)	246,349
Vested (in shares)	(19,062)
Forfeited (in shares)	(9,459)
Balance (in shares)	401,007
Weighted-Average Grant Date Fair Value
Balance (in dollars per share) | $ / shares	$ 52.89
Granted (in dollars per share) | $ / shares	67.70
Vested (in dollars per share) | $ / shares	47.61
Forfeited (in dollars per share) | $ / shares	52.86
Balance (in dollars per share) | $ / shares	$ 62.24
Performance-Based Restricted Stock Units
Number of Shares
Balance (in shares)	167,127
Granted (in shares)	246,349
Vested (in shares)	(3,010)
Forfeited (in shares)	(9,459)
Balance (in shares)	401,007
Performance-Based Restricted Stock Awards
Number of Shares
Balance (in shares)	16,052
Granted (in shares)	0
Vested (in shares)	(16,052)
Forfeited (in shares)	0
Balance (in shares)	0

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Stock Based Compensation - Stock Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 13	$ 11	$ 24	$ 20
Cost of providing services
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	3	3	6	5
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	2	1	3	3
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	7	6	13	11
Systems development and programming costs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense	$ 1	$ 1	$ 2	$ 1

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Stockholders' Equity - Schedule of Common Stock (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued beginning balance (in shares)	65,881,233	68,470,050	66,456,663	69,065,491
Repurchase of common stock (in shares)	(181,250)	(1,419,984)	(925,251)	(2,167,401)
Awards effectively repurchased for required employee withholding taxes (in shares)	(49,391)	(67,491)	(117,619)	(118,617)
Shares issued ending balance (in shares)	65,864,116	67,292,864	65,864,116	67,292,864
Issuance of common stock from vested restricted stock units
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from vested restricted stock units (in shares)	130,560	168,621	346,518	342,250
Issuance of common stock from exercise of stock options
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock from exercise of stock options (in shares)	8,894	11,136	29,735	40,609
Issuance of common stock for employee stock purchase plan
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan (in shares)	74,070	130,532	74,070	130,532

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Stockholders' Equity - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity [Abstract]
Repurchase of common stock (in shares)	181,250	1,419,984	925,251	2,167,401
Repurchase of common stock			$ 74
Amount available for further repurchases under stock repurchase program	$ 284		$ 284

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Income Taxes - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jan. 18, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Contingency [Line Items]
Effective income tax rate		22.00%	26.00%	24.00%	26.00%
Decrease in unrecognized tax benefits				$ 1
Amount awarded	$ 15
Internal Revenue Service
Income Tax Contingency [Line Items]
Income taxes paid				11
Interest payment		$ 4		$ 4

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Earnings Per Share (EPS) - Computation of Basic and Diluted EPS Attributable to Common Stock (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share [Abstract]
Net income	$ 91	$ 126	$ 192	$ 217
Weighted average shares of common stock outstanding (in shares)	66	67	66	69
Basic earnings per share (in dollars per share)	$ 1.38	$ 1.88	$ 2.91	$ 3.16
Net income	$ 91	$ 126	$ 192	$ 217
Dilutive effect of stock options and restricted stock units (in shares)	1	1	1	1
Weighted average shares of common stock outstanding - diluted (in shares)	67	68	67	70
Diluted earnings per share (in dollars per share)	$ 1.37	$ 1.87	$ 2.87	$ 3.13
Common stock equivalents excluded from income per diluted share because of their anti-dilutive effect (in shares)	1	1	1	2