ManpowerGroup (MAN) 10-Q 3 Nov 23 2023 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2023	Nov. 01, 2023
Cover [Abstract]
Entity Registrant Name	MANPOWERGROUP INC.
Entity Central Index Key	0000871763
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Trading Symbol	MAN
Title of 12(b) Security	Common Stock, $.01 par value
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		48,808,805
Document Quarterly Report	true
Document Transition Report	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q3
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2023
Entity Shell Company	false
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Number	1-10686
Entity Tax Identification Number	39-1672779
Entity Address, Address Line One	100 Manpower Place
Entity Address, City or Town	Milwaukee
Entity Address, State or Province	WI
Entity Incorporation, State or Country Code	WI
Entity Address, Postal Zip Code	53212
City Area Code	414
Local Phone Number	961-1000

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Cash and cash equivalents		$ 571.1	$ 639
Accounts receivable, less allowance for doubtful accounts of $102.8 and $109.3, respectively		4,600.2	5,137.4
Prepaid expenses and other assets		165.3	158
Total current assets		5,336.6	5,934.4
Other Assets:
Goodwill	[1]	1,620.1	1,628.1
Intangible assets, less accumulated amortization of $492.7 and $468.3, respectively		523.6	549.5
Operating lease right-of-use assets		400.1	365.7
Other assets		588.8	540.5
Total other assets		3,132.6	3,083.8
Property and Equipment:
Land, buildings, leasehold improvements and equipment		510.9	584.9
Less: accumulated depreciation and amortization		391.3	472.7
Net property and equipment		119.6	112.2
Total assets		8,588.8	9,130.4
Current Liabilities:
Accounts payable		2,578.2	2,831.4
Employee compensation payable		226	271.7
Accrued liabilities		563.6	572.6
Accrued payroll taxes and insurance		644.5	746.7
Value added taxes payable		401.8	462.7
Short-term borrowings and current maturities of long-term debt		13.6	26.6
Total current liabilities		4,427.7	4,911.7
Other Liabilities:
Long-term debt		948.5	959.9
Long-term operating lease liability		306.2	266.6
Other long-term liabilities		493.1	534.1
Total other liabilities		1,747.8	1,760.6
Shareholders' Equity:
Preferred stock, $.01 par value, authorized 25,000,000 shares, none issued		0	0
Common stock, $.01 par value, authorized 125,000,000 shares, issued 118,378,414 and 118,028,009 shares, respectively		1.2	1.2
Capital in excess of par value		3,505	3,484.2
Retained earnings		3,968.7	3,868.5
Accumulated other comprehensive loss		(483.1)	(458.7)
Treasury stock at cost, 69,266,511 and 67,468,433 shares, respectively		(4,589.1)	(4,447.9)
Total ManpowerGroup shareholders’ equity		2,402.7	2,447.3
Noncontrolling interests		10.6	10.8
Total shareholders’ equity		2,413.3	2,458.1
Total liabilities and shareholders’ equity		$ 8,588.8	$ 9,130.4
[1] Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 .

Consolidated Balance Sheets (_2

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 102.8	$ 109.3
Other Assets:
Accumulated amortization on intangible assets	$ 492.7	$ 468.3
SHAREHOLDERS' EQUITY:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	25,000,000	25,000,000
Preferred stock, issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	125,000,000	125,000,000
Common stock, issued (in shares)	118,378,414	118,028,009
Treasury Stock, Shares	69,266,511	67,468,433

Consolidated Statements of Oper

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023		Sep. 30, 2022
Income Statement [Abstract]
Revenues from services	[2]	$ 4,675.6	[1]	$ 4,800.9	[1]	$ 14,284	[3]	$ 15,018.3	[3]
Cost of services		3,853.7		3,922.4		11,736.7		12,321.5
Gross profit		821.9		878.5		2,547.3		2,696.8
Selling and administrative expenses		752.1		717		2,252		2,215.9
Operating profit		69.8		161.5		295.3		480.9
Interest and other expenses, net		15.1		4.7		34.4		14.1
Earnings before income taxes		54.7		156.8		260.9		466.8
Provision for income taxes		24.4		45.5		87.6		141.7
Net earnings		$ 30.3		$ 111.3		$ 173.3		$ 325.1
Net earnings per share - basic		$ 0.61		$ 2.15		$ 3.46		$ 6.18
Net earnings per share - diluted		$ 0.6		$ 2.13		$ 3.42		$ 6.1
Weighted-average common shares outstanding - basic		49.5		51.7		50.1		52.6
Weighted average shares - diluted		50.1		52.3		50.7		53.3
[1] Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net earnings	$ 30.3	$ 111.3	$ 173.3	$ 325.1
Other comprehensive income (loss):
Foreign currency translation	(50.8)	(147.9)	7.2	(305.9)
Translation adjustments of long-term intercompany loans	(0.5)	(0.4)	(0.6)	1.1
Adjustments on derivative instruments, net of income taxes of $8.5, $15.5, $0.5 and $36.2, respectively	28.6	86.4	(27.9)	158
Unrealized adjustment on interest rate swap	(0.1)	(0.1)	(0.3)	1.9
Defined benefit pension plans and retiree health care plan, net of income taxes of $0.2, $0.2, $0.2 and $0.5, respectively	(0.8)	0.3	(2.8)	1.1
Total other comprehensive income	(23.6)	(61.7)	(24.4)	(143.8)
Comprehensive income	$ 6.7	$ 49.6	$ 148.9	$ 181.3

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other comprehensive income (loss):
Income tax expense on translation adjustments on derivative instruments	$ 8.5	$ 15.5	$ 0.5	$ 36.2
Income tax expense on defined benefit pension plans and retiree health care plan	$ 0.2	$ 0.2	$ 0.2	$ 0.5

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Cash Flows from Operating Activities:
Net earnings	$ 173.3	$ 325.1
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	64.3	63.9
Loss on sales of subsidiaries, net	1.3	3.9
Deferred income taxes	12.3	1.5
Provision for doubtful accounts	5.4	7.2
Share-based compensation	20	29.2
Changes in operating assets and liabilities:
Accounts receivable	460.2	195.9
Other assets	(51.3)	5.3
Other liabilities	(451)	(342.8)
Cash provided by operating activities	234.5	289.2
Cash Flows from Investing Activities:
Capital expenditures	(55.1)	(55.9)
Acquisition of businesses, net of cash acquired	0	(16.4)
Net proceeds from the sales of subsidiaries and property and equipment	2.6	7
Cash used in investing activities	(52.5)	(65.3)
Cash Flows from Financing Activities:
Net change in short-term borrowings	(13.7)	(1.5)
Net repayments of revolving debt facility	0	(75)
Proceeds from long-term debt	0.7	421.1
Repayments of long-term debt	(0.7)	(412.1)
Payments for debt issuance costs	0	(2.4)
Proceeds from derivative settlement	0	2
Payments of contingent consideration for acquisitions	0	(1.7)
Proceeds from share-based awards	1.8	0.4
Payments to noncontrolling interests	(0.6)	(1)
Other share-based award transactions	(10.3)	(8.4)
Repurchases of common stock	(129.8)	(245)
Dividends paid	(73.1)	(71.2)
Cash used in financing activities	(225.7)	(394.8)
Effect of exchange rate changes on cash	(24.2)	(149.4)
Change in cash and cash equivalents	(67.9)	(320.3)
Cash and cash equivalents, beginning of period	639	847.8
Cash and cash equivalents, end of period	571.1	527.5
Supplemental Cash Flow Information:
Interest paid	63.2	30.9
Income taxes paid, net	141.7	150.9
Non-cash operating activity:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 107.2	$ 37.5

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock	Non-Controlling Interests
Balance, beginning of period at Dec. 31, 2021	$ 2,531.7	$ 1.2	$ 3,444.7	$ 3,634.6	$ (389.4)	$ (4,169.4)	$ 10
Balance, beginning of period (in shares) at Dec. 31, 2021		117,762,065
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	91.6			91.6
Other comprehensive income (loss)	(10.2)				(10.2)
Issuances under equity plans	(8.3)		(0.1)			(8.2)
Issuances under equity plans (in shares)		246,804
Share-based compensation expense	10.6		10.6
Repurchases of common stock	(59.9)					(59.9)
Noncontrolling interest transactions	0.6						0.6
Balance, end of period at Mar. 31, 2022	2,556.1	$ 1.2	3,455.2	3,726.2	(399.6)	(4,237.5)	10.6
Balance, end of period (in shares) at Mar. 31, 2022		118,008,869
Balance, beginning of period at Dec. 31, 2021	2,531.7	$ 1.2	3,444.7	3,634.6	(389.4)	(4,169.4)	10
Balance, beginning of period (in shares) at Dec. 31, 2021		117,762,065
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	325.1
Other comprehensive income (loss)	(143.8)
Balance, end of period at Sep. 30, 2022	2,416.6	$ 1.2	3,472.3	3,888.5	(533.2)	(4,422.7)	10.5
Balance, end of period (in shares) at Sep. 30, 2022		118,024,212
Balance, beginning of period at Mar. 31, 2022	2,556.1	$ 1.2	3,455.2	3,726.2	(399.6)	(4,237.5)	10.6
Balance, beginning of period (in shares) at Mar. 31, 2022		118,008,869
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	122.2			122.2
Other comprehensive income (loss)	(71.9)				(71.9)
Issuances under equity plans	(0.3)		(0.4)			0.1
Issuances under equity plans (in shares)		1,062
Share-based compensation expense	11		11
Dividends	(71.2)			(71.2)
Repurchases of common stock	(100.1)					(100.1)
Noncontrolling interest transactions	(1)						(1)
Balance, end of period at Jun. 30, 2022	2,444.8	$ 1.2	3,465.8	3,777.2	(471.5)	(4,337.5)	9.6
Balance, end of period (in shares) at Jun. 30, 2022		118,009,931
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	111.3			111.3
Other comprehensive income (loss)	(61.7)				(61.7)
Issuances under equity plans	(0.4)		(0.2)			(0.2)
Issuances under equity plans (in shares)		14,281
Share-based compensation expense	7.6		7.6
Repurchases of common stock	(85)					(85)
Noncontrolling interest transactions	0		(0.9)				0.9
Balance, end of period at Sep. 30, 2022	2,416.6	$ 1.2	3,472.3	3,888.5	(533.2)	(4,422.7)	10.5
Balance, end of period (in shares) at Sep. 30, 2022		118,024,212
Balance, beginning of period at Dec. 31, 2022	2,458.1	$ 1.2	3,484.2	3,868.5	(458.7)	(4,447.9)	10.8
Balance, beginning of period (in shares) at Dec. 31, 2022		118,028,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	77.8			77.8
Other comprehensive income (loss)	7.1				7.1
Issuances under equity plans	(8.6)		1.3			(9.9)
Issuances under equity plans (in shares)		336,079
Share-based compensation expense	5.1		5.1
Repurchases of common stock	(30.3)					(30.3)
Noncontrolling interest transactions	0.2						0.2
Balance, end of period at Mar. 31, 2023	2,509.4	$ 1.2	3,490.6	3,946.3	(451.6)	(4,488.1)	11
Balance, end of period (in shares) at Mar. 31, 2023		118,364,088
Balance, beginning of period at Dec. 31, 2022	2,458.1	$ 1.2	3,484.2	3,868.5	(458.7)	(4,447.9)	10.8
Balance, beginning of period (in shares) at Dec. 31, 2022		118,028,009
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	173.3
Other comprehensive income (loss)	(24.4)
Balance, end of period at Sep. 30, 2023	2,413.3	$ 1.2	3,505	3,968.7	(483.1)	4,589.1	10.6
Balance, end of period (in shares) at Sep. 30, 2023		118,378,414
Balance, beginning of period at Mar. 31, 2023	2,509.4	$ 1.2	3,490.6	3,946.3	(451.6)	(4,488.1)	11
Balance, beginning of period (in shares) at Mar. 31, 2023		118,364,088
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	65.2			65.2
Other comprehensive income (loss)	(7.9)				(7.9)
Issuances under equity plans	(0.1)		(0.2)			0.1
Issuances under equity plans (in shares)		854
Share-based compensation expense	6.9		6.9
Dividends	(73.1)			(73.1)
Repurchases of common stock	(50.2)					(50.2)
Noncontrolling interest transactions	(0.4)						(0.4)
Balance, end of period at Jun. 30, 2023	2,449.8	$ 1.2	3,497.3	3,938.4	(459.5)	(4,538.2)	10.6
Balance, end of period (in shares) at Jun. 30, 2023		118,364,942
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	30.3			30.3
Other comprehensive income (loss)	(23.6)				(23.6)
Issuances under equity plans	(0.8)		(0.3)			(0.5)
Issuances under equity plans (in shares)		13,472
Share-based compensation expense	(8)		8
Repurchases of common stock	(50.4)					50.4
Balance, end of period at Sep. 30, 2023	$ 2,413.3	$ 1.2	$ 3,505	$ 3,968.7	$ (483.1)	$ 4,589.1	$ 10.6
Balance, end of period (in shares) at Sep. 30, 2023		118,378,414

Insider Trading Arrangements

Insider Trading Arrangements	9 Months Ended
	Sep. 30, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Adoption Date	September 30, 2023
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Basis of Presentation and Accou

Basis of Presentation and Accounting Policies	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation and Accounting Policies	(1) Basis of Presentation and Accounting Policies Basis of Presentation Certain information and footnote disclosures normally included in the financial statements prepared in accordance with United States Generally Accepted Accounting Principles ("GAAP") have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission, although we believe that the disclosures are adequate to make the information presented not misleading. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements included in our 2022 Annual Report on Form 10-K. The information furnished reflects all adjustments that, in the opinion of management, were necessary for a fair statement of the Consolidated Financial Statements for the periods presented. Such adjustments were of a normal recurring nature, unless otherwise disclosed. Allowance for Doubtful Accounts We have an allowance for doubtful accounts recorded as an estimate of the accounts receivable that may not be collected. This allowance is calculated on an entity-by-entity basis with consideration of historical write-off experience, age of receivables, market conditions, and a specific review for potential bad debts. Items that affect this balance mainly include bad debt expense and the write-off of accounts receivable balances. A rollforward of our allowance for doubtful accounts is shown below: Nine Months Ended Balance, December 31, 2022 $ 109.3 Provisions charged to earnings 5.4 Write-offs ( 10.5 ) Currency impact and other ( 1.4 ) Balance, September 30, 2023 $ 102.8 Leases We determine whether a contract is or contains a lease at contract inception. Right-of-use (“ROU”) assets and long-term lease liabilities are presented as separate line items on our Consolidated Balance Sheets. Current operating lease liabilities are included in accrued expenses on our Consolidated Balance Sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Lease liabilities are recognized at commencement date based on the present value of remaining lease payments over the lease term. As the rate implicit in the lease is not readily determinable in most of our leases, we use our incremental borrowing rate. We determine our incremental borrowing rate at the commencement date using our unsecured borrowing rate, adjusted for collateralization, lease term, economic environment, currency and other factors. ROU assets are recognized at commencement date at the value of the related lease liabilities, adjusted for any prepayments, lease incentives received, and initial direct costs incurred. Our lease terms include options to renew or not terminate the lease when it is reasonably certain that we will exercise that option. Lease expenses for operating leases are recognized on a straight-line basis over the lease term and recorded in selling and administrative expenses on the Consolidated Statements of Operations. Goodwill Impairment In accordance with the accounting guidance on goodwill, we perform an annual impairment test of goodwill at our reporting unit level during the third quarter, or more frequently if events or circumstances change that would more likely than not reduce the fair value of our reporting units below their carrying value. We evaluate the recoverability of goodwill utilizing an income approach that estimates the fair value of the future discounted cash flows to which the goodwill relates. This approach reflects management’s internal outlook of the reporting units, which is believed to be the best determination of value due to management’s insight and experience with the reporting units. Significant assumptions used in our goodwill impairment tests include: expected future revenue growth rates, operating unit profit margins, working capital levels, discount rates, and a terminal value multiple. During the third quarter of 2023, we performed our annual impairment test of our goodwill and indefinite-lived intangible assets and determined that there was no impairment of our goodwill or indefinite-lived intangible assets. The fair value of each reporting unit at the time of our annual impairmen t test was at least 20 % in excess of the respective reporting unit’s carrying value with the exception of the Netherlands reporting unit. The Netherlands reporting unit, which is part of the Northern Europe segment, had a fair value that approximated its carrying value. Key assumptions included in the Netherlands discounted cash flow valuation performed at our 2023 annual impairment test included a discount rate of 12.5 %, revenue growth for the next 10 years ranging from - 1.2 % to 6.4 %, a terminal value revenue growth rate of 2.0 %, and a terminal value OUP margin of 3.2 %. Management closely monitors the results of the reporting unit and comparisons to the key assumptions used in our fair value estimate at the time of our annual impairment test, in addition to operational initiatives and macroeconomic conditions, which may impact the results of the reporting unit. The performance of the Netherlands reporting unit and the potential for future developments in the global economic environment, including the prospect of higher interest rates, introduces a heightened risk for impairment in the Netherlands reporting unit. If management determines that the Netherlands reporting unit cannot improve from its current operating levels and meet its operating targets to achieve the growth and margin assumptions noted above, or if there is continued deterioration in the market due to macroeconomic conditions, some or all of the recorded goodwill for the Netherlands reporting unit, which was $ 54.4 as of September 30, 2023, could be subject to impairment. While our other reporting units' fair values exceeded their respective carrying values by 20 % or more, there could be significant further decreases in the operating results of our reporting units for a sustained period, which may result in a recognition of goodwill impairment that could be material to the Consolidated Financial Statements.

Recent Accounting Standards

Recent Accounting Standards	9 Months Ended
	Sep. 30, 2023
Accounting Changes and Error Corrections [Abstract]
Recent Accounting Standards	(2) Recent Accounting Standards Accounting Standards Effective as of January 1, 2023 In November 2021, the FASB issued new guidance on business combinations. The guidance added the contract assets and contract liabilities to the list of exceptions to the recognition and measurement principles that apply to business combinations and requires that an acquirer recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with the revenue recognition standard. The new guidance was effective for us as of January 1, 2023. The adoption of this guidance had no impact on our Consolidated Financial Statements. In March 2020, the FASB issued new guidance on accounting for contract modifications, including hedging relationships, due to the transition from LIBOR and other interbank offerings related to alternative reference interest rates. The guidance was effective upon issuance and can be applied to applicable contract modifications through December 31, 2024 . The adoption of this guidance has not had any impact on our Consolidated Financial Statements, and we do not expect it to have a material impact going forward.

Revenue Recognition

Revenue Recognition	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Revenue Recognition	(3) Revenue Recognition For certain client contracts where we recognize revenues over time, we recognize the amount that we have the right to invoice, which corresponds directly to the value provided to the client of our performance to date. We do not disclose the amount of unsatisfied performance obligations for client contracts with an original expected length of one year or less and those client contracts for which we recognize revenues at the amount to which we have the right to invoice for services performed. We have other contracts with revenues expected to be recognized subsequent to September 30, 2023, related to remaining performance obligations, which are not material. We record accounts receivable when our right to consideration becomes unconditional. Contract assets primarily relate to our rights to consideration for services provided that they are conditional on satisfaction of future performance obligations. We record contract liabilities (deferred revenue) when payments are made or due prior to the related performance obligations being satisfied. The current portion of our contract liabilities is included in accrued liabilities in our Consolidated Balance Sheets. We do not have any material contract assets or long-term contract liabilities. Our deferred revenue was $ 31.5 as of September 30, 2023 and $ 35.6 as of December 31, 2022. In the following table, revenue is disaggregated by service types for each of our reportable segments. See Note 2 to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K for descriptions of revenue service types. Three Months Ended September 30, 2023 2022 (a) Staffing Outcome- Permanent Other Total Staffing Outcome- Permanent Other Total Americas: United States $ 673.6 $ 5.3 $ 33.7 $ 40.0 $ 752.6 $ 788.6 $ 6.2 $ 54.4 $ 37.4 $ 886.6 Other Americas 332.7 11.5 12.0 2.5 358.7 325.5 13.0 13.0 1.7 353.2 1,006.3 16.8 45.7 42.5 1,111.3 1,114.1 19.2 67.4 39.1 1,239.8 Southern Europe: France 1,113.8 67.9 12.7 15.5 1,209.9 1,071.8 61.9 12.9 12.9 1,159.5 Italy 388.8 8.0 12.0 4.9 413.7 372.8 6.7 11.1 4.5 395.1 Other Southern Europe 390.4 73.5 14.5 6.7 485.1 390.8 77.0 15.3 2.1 485.2 1,893.0 149.4 39.2 27.1 2,108.7 1,835.4 145.6 39.3 19.5 2,039.8 Northern Europe 773.8 78.4 36.5 25.5 914.2 815.3 76.1 42.9 19.8 954.1 APME 438.3 93.7 21.4 11.4 564.8 447.8 91.8 38.0 9.3 586.9 4,111.4 338.3 142.8 106.5 4,699.0 4,212.6 332.7 187.6 87.7 4,820.6 Intercompany Eliminations ( 23.4 ) ( 19.7 ) Total $ 4,675.6 $ 4,800.9 (a) Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Nine Months Ended September 30, 2023 2022 (b) Staffing Outcome- Permanent Other Total Staffing Outcome- Permanent Other Total Americas: United States $ 2,018.9 $ 14.5 $ 103.5 $ 122.4 $ 2,259.3 $ 2,384.4 $ 16.0 $ 166.6 $ 112.9 $ 2,679.9 Other Americas 1,004.6 34.1 35.4 6.8 1,080.9 994.3 37.5 37.1 4.9 1,073.8 3,023.5 48.6 138.9 129.2 3,340.2 3,378.7 53.5 203.7 117.8 3,753.7 Southern Europe: France 3,348.3 212.3 45.4 51.4 3,657.4 3,323.2 200.5 45.8 20.6 3,590.1 Italy 1,207.1 27.6 42.3 16.7 1,293.7 1,214.5 24.0 39.3 16.6 1,294.4 Other Southern Europe 1,153.6 231.4 45.9 21.5 1,452.4 1,237.3 258.3 47.0 8.0 1,550.6 5,709.0 471.3 133.6 89.6 6,403.5 5,775.0 482.8 132.1 45.2 6,435.1 Northern Europe 2,389.2 250.7 119.5 74.9 2,834.3 2,627.4 249.0 135.2 64.1 3,075.7 APME 1,346.4 292.1 96.9 34.7 1,770.1 1,366.5 299.9 115.7 26.7 1,808.8 12,468.1 1,062.7 488.9 328.4 14,348.1 13,147.6 1,085.2 586.7 253.8 15,073.3 Intercompany Eliminations ( 64.1 ) ( 55.0 ) Total $ 14,284.0 $ 15,018.3 (b) Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. In the following table, revenue is disaggregated by timing of revenue recognition for each of our reportable segments: Three Months Ended September 30, 2023 2022 Services Services Total Services Services Total Americas: United States $ 732.9 $ 19.7 $ 752.6 $ 855.7 $ 30.9 $ 886.6 Other Americas 350.9 7.8 358.7 345.1 8.1 353.2 1,083.8 27.5 1,111.3 1,200.8 39.0 1,239.8 Southern Europe: France 1,198.6 11.3 1,209.9 1,147.8 11.7 1,159.5 Italy 402.7 11.0 413.7 385.0 10.1 395.1 Other Southern Europe 473.1 12.0 485.1 472.9 12.3 485.2 2,074.4 34.3 2,108.7 2,005.7 34.1 2,039.8 Northern Europe 885.7 28.5 914.2 919.4 34.7 954.1 APME 550.3 14.5 564.8 565.3 21.6 586.9 4,594.2 104.8 4,699.0 4,691.2 129.4 4,820.6 Intercompany Eliminations ( 23.4 ) ( 19.7 ) Total $ 4,675.6 $ 4,800.9 Nine Months Ended September 30, 2023 2022 Services Services Total Services Services Total Americas: United States $ 2,198.6 $ 60.7 $ 2,259.3 $ 2,585.5 $ 94.4 $ 2,679.9 Other Americas 1,058.3 22.6 1,080.9 1,050.8 23.0 1,073.8 3,256.9 83.3 3,340.2 3,636.3 117.4 3,753.7 Southern Europe: France 3,616.2 41.2 3,657.4 3,548.2 41.9 3,590.1 Italy 1,254.4 39.3 1,293.7 1,258.3 36.1 1,294.4 Other Southern Europe 1,414.7 37.7 1,452.4 1,512.1 38.5 1,550.6 6,285.3 118.2 6,403.5 6,318.6 116.5 6,435.1 Northern Europe 2,740.1 94.2 2,834.3 2,965.3 110.4 3,075.7 APME 1,713.3 56.8 1,770.1 1,742.9 65.9 1,808.8 13,995.6 352.5 14,348.1 14,663.1 410.2 15,073.3 Intercompany Eliminations ( 64.1 ) ( 55.0 ) Total $ 14,284.0 $ 15,018.3

Share-Based Compensation Plans

Share-Based Compensation Plans	9 Months Ended
	Sep. 30, 2023
Share-Based Payment Arrangement [Abstract]
Share-Based Compensation Plans	(4) Share-Based Compensation Plans During the three months ended September 30, 2023 and 2022, we recognized share-based compensation exp ense of $ 8.0 and $ 7.6 , respectively, and $ 20.0 and $ 29.2 for the nine months ended September 30, 2023 and 2022, respectively. The expense relates to stock options, deferred stock units, restricted stock units and performance share units. Lower expense in the nine months ended September 30, 2023 resulted primarily from lower estimated payouts related to performance share units. We recognize share-based compensation expense in selling and administrative expenses on a straight-line basis over the service period of each award. Consideration received from share-based awards was $ 1.8 and $ 0.4 for the nine months ended September 30, 2023 and 2022, respectively.

Acquisitions and Dispositions

Acquisitions and Dispositions	9 Months Ended
	Sep. 30, 2023
Business Combinations [Abstract]
Acquisitions and Dispositions	(5) Acquisitions and Dispositions From time to time, we acquire and invest in companies throughout the world, including franchises. No cash consideration was paid during the nine months ended September 30, 2023. For the nine months ended September 30, 2022 , the total cash consideration paid for acquisitions, net of cash acquired, was $ 18.1 , which primarily represents a consideration payment for the acquisition of Tingari, a talent solutions company in France, and contingent consideration payments associated with previous acquisitions. Occasionally, we dispose of parts of our operations based on risk considerations and to optimize our global strategic and geographic footprint and overall efficiency. On September 29, 2023, we disposed of our Philippines business in our APME segment for total consideration of $ 6.5 . In connection with the disposition, we recognized a one-time net loss on disposition of $ 1.3 .

Restructuring Costs

Restructuring Costs	9 Months Ended
	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
Restructuring Costs	(6) Restructuring Costs During the nine months ended September 30, 2023, we recorded $ 47.1 in severance restructuring costs and $ 12.1 in other restructuring costs, primarily consisting of professional and other fees associated with restructuring activities. We did not record any restructuring costs during the nine months ended September 30, 2022. During the nine months ended September 30, 2023, we made payments of $ 31.7 out of our restructuring reserve, which is used for severance, office closures and consolidations, and professional and other fees related to restructuring in multiple countries and territories. We expect a majority of the remaining $ 40.7 reserve will be paid by the end of 2024. Changes in the restructuring reserve by reportable segment and Corporate are shown below: Americas (a) Southern (b) Northern APME Corporate Total Balance, December 31, 2022 $ 1.0 $ 1.0 $ 11.0 $ 0.2 $ — $ 13.2 Severance costs 7.6 9.3 26.5 3.3 0.4 47.1 Other costs — 0.9 11.2 — — 12.1 Costs paid ( 4.4 ) ( 3.3 ) ( 21.1 ) ( 2.5 ) ( 0.4 ) ( 31.7 ) Balance, September 30, 2023 $ 4.2 $ 7.9 $ 27.6 $ 1.0 $ — $ 40.7 (a) Balances related to the United States were $ 0.6 and $ 2.7 as of December 31, 2022 and September 30, 2023 , respectively. (b) Balances related to France were $ 0.9 and 1.7 as of December 31, 2022 and September 30, 2023 , respectively. In July 2023, we announced our decision to wind down our Proservia managed services business in Germany. We expect to record significant restructuring expense in the fourth quarter of 2023 related to this wind down. A significant portion of the restructuring costs represent payments to impacted employees. A component of these payments are severance related costs amounting to $ 32.2 agreed with the applicable work councils in October 2023, which will be recorded in the fourth quarter of 2023. Communications are continuing with impacted parties, and we expect additional restructuring costs to be recorded through the end of the fourth quarter of 2023.

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2023
Income Tax Disclosure [Abstract]
Income Taxes	(7) Income Taxes We recorded income tax expense at an effective rate of 44.7 % for the three months ended September 30, 2023, as compared to an effective rate of 29.0 % for the three months ended September 30, 2022. The 2023 rate was unfavorably impacted by a lower level of pre-tax earnings with a less beneficial mix due in part to restructuring costs recorded in the third quarter of 2023 and favorably impacted by the scheduled reduction in the French business tax rate from 0.75 % to 0.375 % effective January 1, 2023 and the effective settlement of an income tax audit. In certain countries in which we recorded restructuring costs, we did not recognize a corresponding tax benefit due to the recognition of valuation allowances against anticipated tax losses. The 44.7 % effective tax rate for the third quarter of 2023 was higher than the United States Federal statutory rate of 21 % primarily due to tax losses in certain countries for which we did not recognize a corresponding tax benefit due to valuation allowances, the French business tax, and the overall mix of earnings. We recorded income tax expense at an effective rate of 33.6 % for the nine months ended September 30, 2023, as compared to an effective rate of 30.3 % for the nine months ended September 30, 2022. The 2023 rate was unfavorably impacted by a lower level of pre-tax earnings with a less beneficial mix due in part to restructuring costs recorded in the second and third quarters of 2023 and favorably impacted by the scheduled reduction in the French business tax rate from 0.75 % to 0.375 % effective January 1, 2023 and the effective settlement of an income tax audit. The 33.6 % effective tax rate for the nine months ended September 30, 2023 was higher than the United States Federal statutory rate of 21 % primarily due to tax losses in certain countries for which we did not recognize a corresponding tax benefit due to valuation allowances, the French business tax, and the overall mix of earnings. As of September 30, 2023, we had gross unrecognized tax benefits related to various tax jurisdictions, including interest and penalties, of $ 33.8 . If recognized, the entire amount would favorably affect the effective tax rate except for $ 6.0 . As of December 31, 2022, we had gross unrecognized tax benefits related to various tax jurisdictions, including interest and penalties, of $ 81.6 . In the third quarter of 2023, we effectively settled an income tax audit and reduced our unrecognized tax benefits by $ 45.3 , most of which did not impact tax expense. We do not expect our unrecognized tax benefits to change significantly over the next 12 months. We conduct business globally in various countries and territories. We are routinely audited by the tax authorities of the various tax jurisdictions in which we operate. Generally, the tax years that could be subject to examination are 2016 through 2023 for our major operations in France, Italy, the United Kingdom and the United States. As of September 30, 2023, we were subject to tax audits in Austria, Belgium, Germany, India, Ireland, Israel, Spain and the United States. We believe that the resolution of these audits will not have a material impact on earnings.

Net Earnings Per Share

Net Earnings Per Share	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Net Earnings Per Share	(8) Net Earnings Per Share The calculations of net earnings per share - basic and net earnings per share - diluted were as follows: Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Net earnings available to common shareholders $ 30.3 $ 111.3 $ 173.3 $ 325.1 Weighted-average common shares outstanding (in millions) Weighted-average common shares outstanding - basic 49.5 51.7 50.1 52.6 Effect of dilutive securities - share-based awards 0.6 0.6 0.6 0.7 Weighted-average common shares outstanding - diluted 50.1 52.3 50.7 53.3 Net earnings per share - basic $ 0.61 $ 2.15 $ 3.46 $ 6.18 Net earnings per share - diluted $ 0.60 $ 2.13 $ 3.42 $ 6.10 There were 0.6 million and 0.7 million share-based awards excluded from the calculation of net earnings per share - diluted for the three months ended September 30, 2023 and 2022, respectively, because their impact was anti-dilutive. There were 0.6 million and 0.5 million share-based awards excluded from the calculation of net earnings per share - diluted for the nine months ended September 30, 2023 and 2022 , respectively, because their impact was anti-dilutive.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	(9) Goodwill and Other Intangible Assets We have goodwill, finite-lived intangible assets and indefinite-lived intangible assets as follows: September 30, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Goodwill (a) $ 1,620.1 $ — $ 1,620.1 $ 1,628.1 $ — $ 1,628.1 Intangible assets: Finite-lived: Customer relationships $ 817.2 $ 471.7 $ 345.5 $ 818.9 $ 448.1 $ 370.8 Other 21.2 21.0 0.2 21.3 20.2 1.1 838.4 492.7 345.7 840.2 468.3 371.9 Indefinite-lived: Tradenames (b) 52.0 — 52.0 52.0 — 52.0 Reacquired franchise rights 125.9 — 125.9 125.6 — 125.6 177.9 — 177.9 177.6 — 177.6 Total intangible assets $ 1,016.3 $ 492.7 $ 523.6 $ 1,017.8 $ 468.3 $ 549.5 (a) Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 . (b) Balances were net of accumulated impairment loss of $ 139.5 as of both September 30, 2023 and December 31, 2022 . Total consolidated amortization expense related to intangible assets for the remainder of 2023 is expected to be $ 8.5 and in each of the next five years as follows: 2024 - $ 32.0 , 2025 - $ 30.3 , 2026 - $ 26.8 , 2027 - $ 26.2 and 2028 - $ 26.2 . Changes in the carrying value of goodwill by reportable segment and Corporate were as follows: Americas (a) Southern (b) Northern APME Corporate (c) Total Balance, December 31, 2022 $ 1,049.6 $ 148.2 $ 234.8 $ 69.5 $ 126.0 $ 1,628.1 Currency impact ( 0.2 ) ( 1.6 ) ( 2.2 ) ( 4.0 ) — ( 8.0 ) Balance, September 30, 2023 $ 1,049.4 $ 146.6 $ 232.6 $ 65.5 $ 126.0 $ 1,620.1 (a) Balances related to the United States w ere $ 1,006.5 as of both December 31, 2022 and September 30, 2023 . (b) Balances related to France were $ 73.3 and $ 72.4 as of December 31, 2022 and September 30, 2023, respectively. Balances related to Italy were $ 3.7 and $3.6 as of December 31, 2022 and September 30, 2023 , respectively . (c) The majority of the Corporate balance relates to goodwill attributable to our acquisitions of Right Management ($ 62.1 ) and Jefferson Wells ($ 55.5 ). Jefferson Wells is part of the United States reporting unit. Right Management is allocated to the reporting units of the countries in which Right Management operates. For purposes of monitoring our total assets by segment, we do not allocate the Corporate balances to the respective reportable segments as this is commensurate with how we operate our business. We do, however, include these balances within the appropriate reporting units for our goodwill impairment testing.

Retirement Plans

Retirement Plans	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Retirement Plans	(10) Retirement Plans The components of the net periodic benefit cost (credit) for our plans were as follows: Defined Benefit Pension Plan Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Service cost $ 3.9 $ 4.7 $ 11.6 $ 14.7 Interest cost 5.3 2.1 15.8 6.6 Expected return on assets ( 4.8 ) ( 3.6 ) ( 14.2 ) ( 11.1 ) Net (gain) loss ( 0.8 ) 0.5 ( 2.5 ) 1.4 Prior service cost 0.2 0.2 0.5 0.5 Total benefit cost $ 3.8 $ 3.9 $ 11.2 $ 12.1 Retiree Health Care Plan Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Interest cost $ 0.1 $ 0.1 $ 0.4 $ 0.2 Prior service credit ( 0.2 ) ( 0.2 ) ( 0.6 ) ( 0.6 ) Net loss — — — 0.1 Total benefit credit $ ( 0.1 ) $ ( 0.1 ) $ ( 0.2 ) $ ( 0.3 ) During the three and nine months ended September 30, 2023, contributions made to our pension plans were $ 4.0 and $ 14.6 , respectively, and contributions made to our retiree health care plan were $ 0.3 and $ 0.9 , respectively. During 2023, we expect to make total contributions of approximately $ 20.0 to our pension plans and to fund our retiree health care payments as incurred.

Shareholders' Equity

Shareholders' Equity	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Shareholders' Equity	(11) Shareholders’ Equity The components of accumulated other comprehensive loss, net of tax, were as follows: September 30, December 31, 2023 2022 Foreign currency translation $ ( 362.5 ) $ ( 369.7 ) Translation loss on long-term intercompany loans, net of income taxes of $ 19.1 on both dates ( 133.4 ) ( 132.8 ) Gain on derivative instruments, net of income tax benefit of $( 4.8 ) and $( 5.3 ), respectively 25.5 53.4 Gain on interest rate swap, net of income taxes of $ 0.4 on both dates 1.1 1.4 Defined benefit pension plans, net of income tax benefit of $( 20.1 ) and $( 20.4 ), respectively ( 14.5 ) ( 12.2 ) Retiree health care plan, net of income taxes of $ 1.8 and $ 1.9 , respectively 0.7 1.2 Accumulated other comprehensive loss $ ( 483.1 ) $ ( 458.7 ) Noncontrolling interests, reported in total shareholders' equity in our Consolidated Balance Sheets, represent amounts related to majority-owned subsidiaries in which we have a controlling financial interest. Net earnings attributable to these noncontrolling interests are recorded in interest and other expenses, net in our Consolidated Statements of Operations. During the three months ended September 30, 2023 and 2022 , we recorded an expense of $ 0.1 and a benefit of $ 0.1 , respectively, and expenses of $ 0.2 and $ 0.6 for the nine months ended September 30, 2023 and 2022, respectively. The Board of Directors declared a semi-annual dividend of $ 1.47 and $ 1.36 per share on May 5, 2023 and May 6, 2022 , respectively. The 2023 dividends were paid on June 15, 2023 to shareholders of record as of June 1, 2023 . The 2022 dividends were paid on June 15, 2022 to shareholders of record as of June 1, 2022 . In August 2023, the Board of Directors authorized the repurchase of 5.0 million shares of our common stock, with terms consistent with the previous authorizations. This authorization was in addition to the August 2021 and 2019 Board authorizations to repurchase 4.0 million and 6.0 million shares of our common stock, respectively. Share repurchases may be made from time to time through a variety of methods, including open market purchases, block transactions, privately negotiated transactions or similar facilities. During the nine months ended September 30, 2023 , we repurchased a total of 1.7 million shares under the 2021 authorization at a cost of $ 129.8 . During the nine months ended September 30, 2022 , we repurchased a total of 2.8 million shares comprised of 1.2 million shares under the 2019 authorization and 1.6 million shares under the 2021 authorization, at a total cost of $ 245.0 . As of September 30, 2023 , there were 5.0 million and 0.3 million shares remaining authorized for repurchase under the 2023 authorization and 2021 authorization, respectively, and no shares remaining authorized for repurchase under the 2019 authorization.

Interest and Other Expenses, Ne

Interest and Other Expenses, Net	9 Months Ended
	Sep. 30, 2023
Other Nonoperating Income (Expense) [Abstract]
Interest and Other Expenses, Net	(12) Interest and Other Expenses, Net Interest and other expenses, net consisted of the following: Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Interest expense $ 21.0 $ 10.7 $ 59.7 $ 31.7 Interest income ( 8.0 ) ( 4.4 ) ( 24.5 ) ( 10.0 ) Foreign exchange loss 6.0 3.8 14.2 8.9 Miscellaneous income, net ( 3.9 ) ( 5.4 ) ( 15.0 ) ( 16.5 ) Interest and other expenses, net $ 15.1 $ 4.7 $ 34.4 $ 14.1

Derivative Financial Instrument

Derivative Financial Instruments and Fair Value Measurements	9 Months Ended
	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments and Fair Value Measurements	(13) Derivative Financial Instruments and Fair Value Measurements Derivative Financial Instruments We are exposed to various market risks relating to our ongoing business operations. The primary market risks, which are managed using derivative instruments, are foreign currency exchange rate risk and interest rate risk. In certain circumstances, we enter into foreign currency forward exchange contracts and cross-currency swaps to reduce the effects of fluctuating foreign currency exchange rates on our cash flows denominated in foreign currencies. Our exposure to market risk for changes in interest rates relates primarily to our long-term debt obligations. We have historically managed interest rate risk through the use of a combination of fixed and variable rate borrowings. Net Investment Hedges We use cross-currency swaps, forward contracts and a portion of our foreign currency denominated debt, a non-derivative financial instrument, to protect the value of our net investments in certain of our foreign subsidiaries. For derivative instruments that are designated and qualify as hedges of our net investments in foreign operations, the changes in fair values of the derivative instruments are recognized in foreign currency translation, a component of accumulated other comprehensive income (“AOCI”), to offset the changes in the values of the net investments being hedged. For non-derivative financial instruments that are designated and qualify as hedges of net investments in foreign operations, the change in the carrying value of the designated portion of the non-derivative financial instrument due to changes in foreign currency exchange rates is recorded in foreign currency translation adjustments. Our € 500.0 ($ 526.6 ) notes due June 2026 and € 400.0 ($ 419.4 ) notes due June 2027 were designated as a hedge of our net investment in our foreign subsidiaries with a Euro-functional currency as of September 30, 2023. In September 2019, we entered into a cross-currency swap agreement that net converts fixed-rate Swiss franc (“CHF”) payments to fixed-rate United States dollar payments which matured in September 2022. In September 2022, we entered into a new cross-currency swap agreement that net converts fixed-rate Swiss franc (“CHF”) payments to fixed-rate United States dollar payments. This swap was designated as a net investment hedge of our foreign subsidiary with CHF functional currency. The effect of our net investment hedges on AOCI for the three and nine months ended September 30, 2023 and 2022 was as follows: Gain (Loss) Recognized in Other Comprehensive Income Three Months Ended September 30, Nine Months Ended September 30, Instrument 2023 2022 2023 2022 Euro Notes $ 30.6 $ 61.4 $ 11.9 $ 141.2 Cross-currency swaps 6.5 12.2 ( 10.6 ) 23.4 We use cross-currency swaps to hedge the changes in cash flows of certain of our foreign currency denominated debt due to changes in foreign currency exchange rates. For our cross-currency swaps, we record the change in carrying value of the foreign currency denominated debt due to changes in exchange rates into earnings each period. The changes in fair value of the cross-currency swap derivatives are recorded in AOCI with an immediate reclassification into earnings for the change in fair value attributable to fluctuations in foreign currency exchange rates. In April 2019, we entered into a cross-currency swap agreement to convert our intercompany fixed-rate, CHF denominated note, including the annual interest payment and the payment of remaining principal at maturity, to a fixed-rate Euro denominated note. The economic effect of the swap agreement is to eliminate the uncertainty of cash flows in CHF associated with the note by fixing the principal at € 202.3 with a fixed annual interest rate of 1.256 %. This hedging arrangement has been designated as a cash flow hedge. The swap had an original maturity of April 2022, which aligned to the term of the intercompany note. On March 17, 2022, we settled the swap ahead of its maturity date, resulting in a net cash inflow of $ 19.2 . We simultaneously entered into new cross-currency swaps, which we account for as fair value hedges, with maturity dates of April 2024. In September 2019, we entered into a cross-currency swap agreement to convert an additional intercompany fixed-rate CHF note, including the annual interest payment and the payment of remaining principal at maturity, to a fixed-rate Euro denominated note. The economic effect of the swap is identical to the original April 2019 swap, and fixes the principal of € 55.4 with a fixed interest rate of 1.143 %. The swap matured in September 2022 and we simultaneously entered into new cross-currency swaps, which we account for as fair value hedges, with maturity dates of September 2024. Refer to the "Fair Value Hedge" section below for additional detail. We use forward currency exchange contracts to hedge the changes in cash flows of certain operational expenses denominated in foreign currency due to changes in foreign currency exchange rates. The changes in fair value of the forward currency exchange contracts derivatives are recorded in AOCI and reclassified into earnings when the underlying operating expense is recognized in earnings. On June 9, 2022, we entered into a forward starting interest rate swap agreement with a notional amount of € 300.0 and a fixed rate of 1.936 %, which was accounted for as a cash flow hedge, to hedge the interest rate exposure related to our anticipated issuance of €400.0 notes to repay our existing € 400.0 notes maturing in September 2022 . Upon the issuance of the notes on June 30, 2022, we settled this forward starting interest rate swap, resulting in a gain of $ 2.0 , which was recorded in accumulated other comprehensive income and will be amortized over the term of the notes as an offset to interest expense. We assessed the hedging relationship at the inception of the hedges in order to determine whether the derivatives that are used in the transaction are highly effective in offsetting the cash flows of the hedged item and will continue to assess the relationship on an ongoing basis. We use the hypothetical derivative method in conjunction with regression analysis using a third-party valuation to measure effectiveness of our cross-currency swap agreements and our forward currency exchange contracts. The following tables present the impact that changes in the fair values of derivatives designated as cash flow hedges had on other comprehensive income (“OCI”), AOCI and earnings for the three and nine months ended September 30, 2023 and 2022: Gain (Loss) Recognized in OCI Gain (Loss) Reclassified from AOCI into Income Three Months Ended September 30, Location of Gain (Loss) Reclassified Three Months Ended September 30, Instrument 2023 2022 from AOCI into Income 2023 2022 Cross-currency swaps $ — $ 2.2 Interest and other expenses, net $ — $ 2.1 Foreign currency forward contracts — 0.1 Selling and administrative expenses — ( 0.3 ) Forward starting interest swap — — Interest and other expenses, net 0.1 0.1 Gain (Loss) Recognized in OCI Gain (Loss) Reclassified from AOCI into Income Nine Months Ended September 30, Location of Gain (Loss) Reclassified Nine Months Ended September 30, Instrument 2023 2022 from AOCI into Income 2023 2022 Cross-currency swaps $ — $ 4.5 Interest and other expenses, net $ — $ 4.2 Foreign currency forward contracts — ( 0.2 ) Selling and administrative expenses — ( 0.6 ) Forward starting interest swap — 2.0 Interest and other expenses, net 0.3 0.1 We expect the net amount of pre-tax derivative gains included in AOCI at September 30, 2023 to be reclassified into earnings within the next 12 months will not be significant. The actual amount that will be reclassified to earnings over the next 12 months will vary due to future currency exchange rates. Fair Value Hedges We account for derivatives as fair value hedges when the hedged item is a recognized asset, liability, or firm commitment. We use fair value hedges to hedge the changes in cash flows of certain of our foreign currency intercompany denominated notes due to changes in foreign currency exchange rates. We record the change in carrying value of the foreign currency denominated notes due to changes in exchange rates into earnings each period. Gains and losses on the fair value hedges are recorded in earnings, offsetting gains and losses on the hedged item. In March 2022, we entered into a cross-currency swap agreement to hedge our intercompany fixed-rate, CHF denominated note. The economic effect of the swap agreement is to eliminate the uncertainty of cash flows in CHF associated with the note due to changes in foreign currency exchange rates against our Euro functional subsidiary entity. The cross-currency swap matures in April 2024, which aligns with the term of the intercompany note and has a fixed interest rate of 1.05973 %. In September 2022, we entered into a cross-currency swap agreement to hedge our intercompany fixed-rate, CHF denominated note. The economic effect of the swap agreement is to eliminate the uncertainty of cash flows in CHF associated with the note due to changes in foreign currency exchange rates against our Euro functional subsidiary entity. The cross-currency swap matures in September 2024, which aligns with the term of the intercompany note and has a fixed interest rate of 1.7975 %. The cross-currency swaps are accounted for as fair value hedges. Impact of foreign exchange rate changes on the value of the note is offset by gains and losses from the hedges. The following tables present the impact that the fair value hedges had on OCI and earnings for the three and nine months ended September 30, 2023 and 2022: Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Income Three Months Ended September 30, Location of Gain (Loss) Three Months Ended September 30, Instrument 2023 2022 Recognized in Income 2023 2022 Intercompany CHF notes $ — $ — Interest and other expenses, net $ ( 3.3 ) $ ( 8.4 ) Cross-currency swaps ( 0.5 ) 1.7 Interest and other expenses, net 3.3 8.8 Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Income Nine Months Ended September 30, Location of Gain (Loss) Nine Months Ended September 30, Instrument 2023 2022 Recognized in Income 2023 2022 Intercompany CHF notes $ — $ — Interest and other expenses, net $ ( 7.4 ) $ ( 16.1 ) Cross-currency swaps ( 2.2 ) 1.4 Interest and other expenses, net 7.4 16.1 Non-designated instruments We also use certain derivatives, which are not designated as hedging instruments, as economic hedges of foreign currency and interest rate exposure. For our forward contracts that are not designated as hedges, any gain or loss resulting from the change in fair value is recognized in current period earnings. These gains or losses are offset by the exposure related to receivables and payables with our foreign subsidiaries and to interest due on our Euro-denominated notes, which is paid annually in June and September. The effect of our forward contracts that are not designated as hedging instruments on the consolidated statements of operations for the three and nine months ended September 30, 2023 and 2022 was as follows: Gain (Loss) Recognized in Income Location of Gain (Loss) Three Months Ended September 30, Nine Months Ended September 30, Instrument Recognized in Income 2023 2022 2023 2022 Foreign currency forward contracts Interest and other expenses, net $ ( 7.3 ) $ ( 14.7 ) $ ( 4.3 ) $ ( 27.9 ) The following tables present the fair value of derivative and non-derivative assets and liabilities on the Consolidated Balance Sheets as of September 30, 2023 and December 31, 2022: Assets September 30, December 31, Balance Sheet Location 2023 2022 Instruments designated as fair value hedges: Cross-currency swaps Accounts Receivable, net 18.6 13.8 Instruments not designated as hedges: Foreign currency forward contracts Accounts Receivable, net — 0.2 Total instruments $ 18.6 $ 14.0 Liabilities September 30, December 31, Balance Sheet Location 2023 2022 Instruments designated as net investment hedges: Euro Notes due in 2026 Long-term debt 526.6 532.7 Euro Notes due in 2027 Long-term debt 419.4 423.9 Cross-currency swaps Accrued liabilities 35.8 25.8 Instruments not designated as hedges: Foreign currency forward contracts Accrued liabilities 4.8 — Total instruments $ 986.6 $ 982.4 Fair Value Measurements The carrying value of the long-term debt approximates fair value, except for the Euro-denominated notes, because the interest rates are variable and reflect current market rates. The fair value of the Euro-denominated notes, as observable at commonly quoted intervals (Level 2 inputs), was $ 909.1 and $ 921.7 as of September 30, 2023 and December 31, 2022, respectively, compared to a carrying value of $ 946.0 and $ 956.6 , respectively. Our deferred compensation plan assets were $ 133.5 and $ 115.3 as of September 30, 2023 and December 31, 2022, respectively. We determine the fair value of these assets, comprised of publicly traded securities, by using market quotes as of the last day of the period (Level 1 inputs). We measure the fair value of the foreign currency forward contracts and cross-currency swaps at the value based on either directly or indirectly observable inputs from third parties (Level 2 inputs).

Leases

Leases	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Leases	(14) Leases The components of lease expense were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Operating lease expense $ 35.6 $ 32.1 $ 106.9 $ 96.1 Short-term lease expense 1.1 1.7 3.7 4.3 Other lease expense (a) 2.5 1.3 10.4 10.3 Total lease expense $ 39.2 $ 35.1 $ 121.0 $ 110.7 (a) Other lease expense includes variable lease expense and sublease income. Other information related to leases was as follows: Nine Months Ended September 30, Supplemental Cash Flow Information 2023 2022 Cash paid for amounts included in the measurement of operating lease liabilities $ 102.6 $ 93.4 Operating ROU assets obtained in exchange for lease obligations 107.2 37.5 September 30, December 31, Supplemental Balance Sheet Information 2023 2022 Operating Leases Operating lease ROU assets $ 400.1 $ 365.7 Operating lease liabilities - current (a) $ 102.0 $ 105.5 Operating lease liabilities - long-term 306.2 266.6 Total operating lease liabilities $ 408.2 $ 372.1 (a) Operating lease liabilities - current are included in accrued expenses on our Consolidated Balance Sheets. September 30, 2023 2022 Weighted Average Remaining Lease Term Operating leases 5.5 years 5.0 years Weighted Average Discount Rate Operating leases 3.6 % 2.4 % Maturities of operating lease liabilities as of September 30, 2023 were as follows: Period Ending September 30, 2023 Operating Leases 2023 $ 30.1 2024 107.3 2025 80.6 2026 61.8 2027 51.4 2028 41.6 Thereafter 87.1 Total future undiscounted lease payments 459.9 Less imputed interest ( 51.7 ) Total operating lease liabilities $ 408.2

Segment Data

Segment Data	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Segment Data	(15) Segment Data We are organized and managed primarily on a geographic basis. Each country and business unit generally has its own distinct operations and management team, providing services under our global brands, and maintains its own financial reports. We have an executive sponsor for each global brand who is responsible for ensuring the integrity and consistency of delivery across the company. Each operation reports directly or indirectly through a regional manager, to a member of executive management. Given this reporting structure, we operate using the following reporting segments: Americas, which includes United States and Other Americas; Southern Europe, which includes France, Italy and Other Southern Europe; Northern Europe; and APME. The segments derive a significant majority of their revenues from our staffing and interim services. The remaining revenues within these segments are derived from our outcome-based solutions and consulting services, permanent recruitment services, and other services. Segment revenues represent sales to external clients. We provide services to a wide variety of clients, none of which individually comprise a significant portion of revenues for us as a whole. Due to the nature of our business, we generally do not have export sales. Three Months Ended September 30, Nine Months Ended 2023 2022 2023 2022 Revenues from services: Americas: United States (a) $ 752.6 $ 886.6 $ 2,259.3 $ 2,679.9 Other Americas 358.7 353.2 1,080.9 1,073.8 1,111.3 1,239.8 3,340.2 3,753.7 Southern Europe: France 1,209.9 1,159.5 3,657.4 3,590.1 Italy 413.7 395.1 1,293.7 1,294.4 Other Southern Europe 485.1 485.2 1,452.4 1,550.6 2,108.7 2,039.8 6,403.5 6,435.1 Northern Europe 914.2 954.1 2,834.3 3,075.7 APME 564.8 586.9 1,770.1 1,808.8 4,699.0 4,820.6 14,348.1 15,073.3 Intercompany Eliminations ( 23.4 ) ( 19.7 ) ( 64.1 ) ( 55.0 ) Consolidated (b) $ 4,675.6 $ 4,800.9 $ 14,284.0 $ 15,018.3 Operating unit profit: (c) Americas: United States $ 25.4 $ 54.7 $ 82.7 $ 177.7 Other Americas 12.5 16.4 47.0 47.1 37.9 71.1 129.7 224.8 Southern Europe: France 47.9 56.6 142.3 168.5 Italy 27.0 29.0 94.0 93.5 Other Southern Europe 9.5 14.7 30.6 45.2 84.4 100.3 266.9 307.2 Northern Europe ( 30.6 ) 12.8 ( 35.3 ) 26.9 APME 24.2 23.4 71.0 64.9 115.9 207.6 432.3 623.8 Corporate expenses ( 37.4 ) ( 37.0 ) ( 110.8 ) ( 114.8 ) Intangible asset amortization expense ( 8.7 ) ( 9.1 ) ( 26.2 ) ( 28.1 ) Operating profit 69.8 161.5 295.3 480.9 Interest and other expenses, net ( 15.1 ) ( 4.7 ) ( 34.4 ) ( 14.1 ) Earnings before income taxes $ 54.7 $ 156.8 $ 260.9 $ 466.8 (a) In the United States, revenues from services included fees received from the related franchise offices of $ 3.1 and $ 3.7 for the three months ended September 30, 2023 and 2022, respectively, and $ 8.9 and $ 9.7 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 98.6 and $ 121.9 for the three months ended September 30, 2023 and 2022, respectively, and $ 298.7 and $ 360.8 for the nine months ended September 30, 2023 and 2022 , respectively. (b) Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. (c) We evaluate segment performance based on operating unit profit (“OUP”), which is equal to segment revenues less cost of services and branch and national headquarters operating costs. This profit measure does not include goodwill and intangible asset impairment charges or amortization of intangibles related to acquisitions, corporate expenses, interest and other expense amounts or income taxes.

Basis of Presentation and Acc_2

Basis of Presentation and Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Certain information and footnote disclosures normally included in the financial statements prepared in accordance with United States Generally Accepted Accounting Principles ("GAAP") have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission, although we believe that the disclosures are adequate to make the information presented not misleading. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements included in our 2022 Annual Report on Form 10-K. The information furnished reflects all adjustments that, in the opinion of management, were necessary for a fair statement of the Consolidated Financial Statements for the periods presented. Such adjustments were of a normal recurring nature, unless otherwise disclosed.
Allowance for Doubtful Accounts	Allowance for Doubtful Accounts We have an allowance for doubtful accounts recorded as an estimate of the accounts receivable that may not be collected. This allowance is calculated on an entity-by-entity basis with consideration of historical write-off experience, age of receivables, market conditions, and a specific review for potential bad debts. Items that affect this balance mainly include bad debt expense and the write-off of accounts receivable balances. A rollforward of our allowance for doubtful accounts is shown below: Nine Months Ended Balance, December 31, 2022 $ 109.3 Provisions charged to earnings 5.4 Write-offs ( 10.5 ) Currency impact and other ( 1.4 ) Balance, September 30, 2023 $ 102.8
Leases	Leases We determine whether a contract is or contains a lease at contract inception. Right-of-use (“ROU”) assets and long-term lease liabilities are presented as separate line items on our Consolidated Balance Sheets. Current operating lease liabilities are included in accrued expenses on our Consolidated Balance Sheets. ROU assets represent our right to use an underlying asset for the lease term and lease liabilities represent our obligation to make lease payments arising from the lease. Lease liabilities are recognized at commencement date based on the present value of remaining lease payments over the lease term. As the rate implicit in the lease is not readily determinable in most of our leases, we use our incremental borrowing rate. We determine our incremental borrowing rate at the commencement date using our unsecured borrowing rate, adjusted for collateralization, lease term, economic environment, currency and other factors. ROU assets are recognized at commencement date at the value of the related lease liabilities, adjusted for any prepayments, lease incentives received, and initial direct costs incurred. Our lease terms include options to renew or not terminate the lease when it is reasonably certain that we will exercise that option. Lease expenses for operating leases are recognized on a straight-line basis over the lease term and recorded in selling and administrative expenses on the Consolidated Statements of Operations.
Goodwill Impairment	Goodwill Impairment In accordance with the accounting guidance on goodwill, we perform an annual impairment test of goodwill at our reporting unit level during the third quarter, or more frequently if events or circumstances change that would more likely than not reduce the fair value of our reporting units below their carrying value. We evaluate the recoverability of goodwill utilizing an income approach that estimates the fair value of the future discounted cash flows to which the goodwill relates. This approach reflects management’s internal outlook of the reporting units, which is believed to be the best determination of value due to management’s insight and experience with the reporting units. Significant assumptions used in our goodwill impairment tests include: expected future revenue growth rates, operating unit profit margins, working capital levels, discount rates, and a terminal value multiple. During the third quarter of 2023, we performed our annual impairment test of our goodwill and indefinite-lived intangible assets and determined that there was no impairment of our goodwill or indefinite-lived intangible assets. The fair value of each reporting unit at the time of our annual impairmen t test was at least 20 % in excess of the respective reporting unit’s carrying value with the exception of the Netherlands reporting unit. The Netherlands reporting unit, which is part of the Northern Europe segment, had a fair value that approximated its carrying value. Key assumptions included in the Netherlands discounted cash flow valuation performed at our 2023 annual impairment test included a discount rate of 12.5 %, revenue growth for the next 10 years ranging from - 1.2 % to 6.4 %, a terminal value revenue growth rate of 2.0 %, and a terminal value OUP margin of 3.2 %. Management closely monitors the results of the reporting unit and comparisons to the key assumptions used in our fair value estimate at the time of our annual impairment test, in addition to operational initiatives and macroeconomic conditions, which may impact the results of the reporting unit. The performance of the Netherlands reporting unit and the potential for future developments in the global economic environment, including the prospect of higher interest rates, introduces a heightened risk for impairment in the Netherlands reporting unit. If management determines that the Netherlands reporting unit cannot improve from its current operating levels and meet its operating targets to achieve the growth and margin assumptions noted above, or if there is continued deterioration in the market due to macroeconomic conditions, some or all of the recorded goodwill for the Netherlands reporting unit, which was $ 54.4 as of September 30, 2023, could be subject to impairment. While our other reporting units' fair values exceeded their respective carrying values by 20 % or more, there could be significant further decreases in the operating results of our reporting units for a sustained period, which may result in a recognition of goodwill impairment that could be material to the Consolidated Financial Statements.

Basis of Presentation and Acc_3

Basis of Presentation and Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2023
Accounting Policies [Abstract]
Summary of Rollforward of Allowance for Doubtful Accounts	A rollforward of our allowance for doubtful accounts is shown below: Nine Months Ended Balance, December 31, 2022 $ 109.3 Provisions charged to earnings 5.4 Write-offs ( 10.5 ) Currency impact and other ( 1.4 ) Balance, September 30, 2023 $ 102.8

Revenue Recognition (Tables)

Revenue Recognition (Tables)	9 Months Ended
	Sep. 30, 2023
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	In the following table, revenue is disaggregated by service types for each of our reportable segments. See Note 2 to the Consolidated Financial Statements in our 2022 Annual Report on Form 10-K for descriptions of revenue service types. Three Months Ended September 30, 2023 2022 (a) Staffing Outcome- Permanent Other Total Staffing Outcome- Permanent Other Total Americas: United States $ 673.6 $ 5.3 $ 33.7 $ 40.0 $ 752.6 $ 788.6 $ 6.2 $ 54.4 $ 37.4 $ 886.6 Other Americas 332.7 11.5 12.0 2.5 358.7 325.5 13.0 13.0 1.7 353.2 1,006.3 16.8 45.7 42.5 1,111.3 1,114.1 19.2 67.4 39.1 1,239.8 Southern Europe: France 1,113.8 67.9 12.7 15.5 1,209.9 1,071.8 61.9 12.9 12.9 1,159.5 Italy 388.8 8.0 12.0 4.9 413.7 372.8 6.7 11.1 4.5 395.1 Other Southern Europe 390.4 73.5 14.5 6.7 485.1 390.8 77.0 15.3 2.1 485.2 1,893.0 149.4 39.2 27.1 2,108.7 1,835.4 145.6 39.3 19.5 2,039.8 Northern Europe 773.8 78.4 36.5 25.5 914.2 815.3 76.1 42.9 19.8 954.1 APME 438.3 93.7 21.4 11.4 564.8 447.8 91.8 38.0 9.3 586.9 4,111.4 338.3 142.8 106.5 4,699.0 4,212.6 332.7 187.6 87.7 4,820.6 Intercompany Eliminations ( 23.4 ) ( 19.7 ) Total $ 4,675.6 $ 4,800.9 (a) Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Nine Months Ended September 30, 2023 2022 (b) Staffing Outcome- Permanent Other Total Staffing Outcome- Permanent Other Total Americas: United States $ 2,018.9 $ 14.5 $ 103.5 $ 122.4 $ 2,259.3 $ 2,384.4 $ 16.0 $ 166.6 $ 112.9 $ 2,679.9 Other Americas 1,004.6 34.1 35.4 6.8 1,080.9 994.3 37.5 37.1 4.9 1,073.8 3,023.5 48.6 138.9 129.2 3,340.2 3,378.7 53.5 203.7 117.8 3,753.7 Southern Europe: France 3,348.3 212.3 45.4 51.4 3,657.4 3,323.2 200.5 45.8 20.6 3,590.1 Italy 1,207.1 27.6 42.3 16.7 1,293.7 1,214.5 24.0 39.3 16.6 1,294.4 Other Southern Europe 1,153.6 231.4 45.9 21.5 1,452.4 1,237.3 258.3 47.0 8.0 1,550.6 5,709.0 471.3 133.6 89.6 6,403.5 5,775.0 482.8 132.1 45.2 6,435.1 Northern Europe 2,389.2 250.7 119.5 74.9 2,834.3 2,627.4 249.0 135.2 64.1 3,075.7 APME 1,346.4 292.1 96.9 34.7 1,770.1 1,366.5 299.9 115.7 26.7 1,808.8 12,468.1 1,062.7 488.9 328.4 14,348.1 13,147.6 1,085.2 586.7 253.8 15,073.3 Intercompany Eliminations ( 64.1 ) ( 55.0 ) Total $ 14,284.0 $ 15,018.3 (b) Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. In the following table, revenue is disaggregated by timing of revenue recognition for each of our reportable segments: Three Months Ended September 30, 2023 2022 Services Services Total Services Services Total Americas: United States $ 732.9 $ 19.7 $ 752.6 $ 855.7 $ 30.9 $ 886.6 Other Americas 350.9 7.8 358.7 345.1 8.1 353.2 1,083.8 27.5 1,111.3 1,200.8 39.0 1,239.8 Southern Europe: France 1,198.6 11.3 1,209.9 1,147.8 11.7 1,159.5 Italy 402.7 11.0 413.7 385.0 10.1 395.1 Other Southern Europe 473.1 12.0 485.1 472.9 12.3 485.2 2,074.4 34.3 2,108.7 2,005.7 34.1 2,039.8 Northern Europe 885.7 28.5 914.2 919.4 34.7 954.1 APME 550.3 14.5 564.8 565.3 21.6 586.9 4,594.2 104.8 4,699.0 4,691.2 129.4 4,820.6 Intercompany Eliminations ( 23.4 ) ( 19.7 ) Total $ 4,675.6 $ 4,800.9 Nine Months Ended September 30, 2023 2022 Services Services Total Services Services Total Americas: United States $ 2,198.6 $ 60.7 $ 2,259.3 $ 2,585.5 $ 94.4 $ 2,679.9 Other Americas 1,058.3 22.6 1,080.9 1,050.8 23.0 1,073.8 3,256.9 83.3 3,340.2 3,636.3 117.4 3,753.7 Southern Europe: France 3,616.2 41.2 3,657.4 3,548.2 41.9 3,590.1 Italy 1,254.4 39.3 1,293.7 1,258.3 36.1 1,294.4 Other Southern Europe 1,414.7 37.7 1,452.4 1,512.1 38.5 1,550.6 6,285.3 118.2 6,403.5 6,318.6 116.5 6,435.1 Northern Europe 2,740.1 94.2 2,834.3 2,965.3 110.4 3,075.7 APME 1,713.3 56.8 1,770.1 1,742.9 65.9 1,808.8 13,995.6 352.5 14,348.1 14,663.1 410.2 15,073.3 Intercompany Eliminations ( 64.1 ) ( 55.0 ) Total $ 14,284.0 $ 15,018.3

Restructuring Costs (Tables)

Restructuring Costs (Tables)	9 Months Ended
	Sep. 30, 2023
Restructuring and Related Activities [Abstract]
Schedule of Changes in Restructuring Reserve	Changes in the restructuring reserve by reportable segment and Corporate are shown below: Americas (a) Southern (b) Northern APME Corporate Total Balance, December 31, 2022 $ 1.0 $ 1.0 $ 11.0 $ 0.2 $ — $ 13.2 Severance costs 7.6 9.3 26.5 3.3 0.4 47.1 Other costs — 0.9 11.2 — — 12.1 Costs paid ( 4.4 ) ( 3.3 ) ( 21.1 ) ( 2.5 ) ( 0.4 ) ( 31.7 ) Balance, September 30, 2023 $ 4.2 $ 7.9 $ 27.6 $ 1.0 $ — $ 40.7 (a) Balances related to the United States were $ 0.6 and $ 2.7 as of December 31, 2022 and September 30, 2023 , respectively. (b) Balances related to France were $ 0.9 and 1.7 as of December 31, 2022 and September 30, 2023 , respectively.

Net Earnings Per Share (Tables)

Net Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2023
Earnings Per Share [Abstract]
Calculations of Net Earnings (Loss) Per Share - Basic and Diluted	The calculations of net earnings per share - basic and net earnings per share - diluted were as follows: Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Net earnings available to common shareholders $ 30.3 $ 111.3 $ 173.3 $ 325.1 Weighted-average common shares outstanding (in millions) Weighted-average common shares outstanding - basic 49.5 51.7 50.1 52.6 Effect of dilutive securities - share-based awards 0.6 0.6 0.6 0.7 Weighted-average common shares outstanding - diluted 50.1 52.3 50.7 53.3 Net earnings per share - basic $ 0.61 $ 2.15 $ 3.46 $ 6.18 Net earnings per share - diluted $ 0.60 $ 2.13 $ 3.42 $ 6.10

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill and Intangible Assets	We have goodwill, finite-lived intangible assets and indefinite-lived intangible assets as follows: September 30, 2023 December 31, 2022 Gross Accumulated Net Gross Accumulated Net Goodwill (a) $ 1,620.1 $ — $ 1,620.1 $ 1,628.1 $ — $ 1,628.1 Intangible assets: Finite-lived: Customer relationships $ 817.2 $ 471.7 $ 345.5 $ 818.9 $ 448.1 $ 370.8 Other 21.2 21.0 0.2 21.3 20.2 1.1 838.4 492.7 345.7 840.2 468.3 371.9 Indefinite-lived: Tradenames (b) 52.0 — 52.0 52.0 — 52.0 Reacquired franchise rights 125.9 — 125.9 125.6 — 125.6 177.9 — 177.9 177.6 — 177.6 Total intangible assets $ 1,016.3 $ 492.7 $ 523.6 $ 1,017.8 $ 468.3 $ 549.5 (a) Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 . (b) Balances were net of accumulated impairment loss of $ 139.5 as of both September 30, 2023 and December 31, 2022 .
Changes in Carrying Value of Goodwill by Reportable Segment	Changes in the carrying value of goodwill by reportable segment and Corporate were as follows: Americas (a) Southern (b) Northern APME Corporate (c) Total Balance, December 31, 2022 $ 1,049.6 $ 148.2 $ 234.8 $ 69.5 $ 126.0 $ 1,628.1 Currency impact ( 0.2 ) ( 1.6 ) ( 2.2 ) ( 4.0 ) — ( 8.0 ) Balance, September 30, 2023 $ 1,049.4 $ 146.6 $ 232.6 $ 65.5 $ 126.0 $ 1,620.1 (a) Balances related to the United States w ere $ 1,006.5 as of both December 31, 2022 and September 30, 2023 . (b) Balances related to France were $ 73.3 and $ 72.4 as of December 31, 2022 and September 30, 2023, respectively. Balances related to Italy were $ 3.7 and $3.6 as of December 31, 2022 and September 30, 2023 , respectively . The majority of the Corporate balance relates to goodwill attributable to our acquisitions of Right Management ($ 62.1 ) and Jefferson Wells ($ 55.5 ). Jefferson Wells is part of the United States reporting unit. Right Management is allocated to the reporting units of the countries in which Right Management operates. For purposes of monitoring our total assets by segment, we do not allocate the Corporate balances to the respective reportable segments as this is commensurate with how we operate our business. We do, however, include these balances within the appropriate reporting units for our goodwill impairment testing.

Retirement Plans (Tables)

Retirement Plans (Tables)	9 Months Ended
	Sep. 30, 2023
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost (Credit)	The components of the net periodic benefit cost (credit) for our plans were as follows: Defined Benefit Pension Plan Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Service cost $ 3.9 $ 4.7 $ 11.6 $ 14.7 Interest cost 5.3 2.1 15.8 6.6 Expected return on assets ( 4.8 ) ( 3.6 ) ( 14.2 ) ( 11.1 ) Net (gain) loss ( 0.8 ) 0.5 ( 2.5 ) 1.4 Prior service cost 0.2 0.2 0.5 0.5 Total benefit cost $ 3.8 $ 3.9 $ 11.2 $ 12.1 Retiree Health Care Plan Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Interest cost $ 0.1 $ 0.1 $ 0.4 $ 0.2 Prior service credit ( 0.2 ) ( 0.2 ) ( 0.6 ) ( 0.6 ) Net loss — — — 0.1 Total benefit credit $ ( 0.1 ) $ ( 0.1 ) $ ( 0.2 ) $ ( 0.3 )

Shareholders' Equity (Tables)

Shareholders' Equity (Tables)	9 Months Ended
	Sep. 30, 2023
Equity [Abstract]
Components of Accumulated Other Comprehensive Loss, Net of Tax	The components of accumulated other comprehensive loss, net of tax, were as follows: September 30, December 31, 2023 2022 Foreign currency translation $ ( 362.5 ) $ ( 369.7 ) Translation loss on long-term intercompany loans, net of income taxes of $ 19.1 on both dates ( 133.4 ) ( 132.8 ) Gain on derivative instruments, net of income tax benefit of $( 4.8 ) and $( 5.3 ), respectively 25.5 53.4 Gain on interest rate swap, net of income taxes of $ 0.4 on both dates 1.1 1.4 Defined benefit pension plans, net of income tax benefit of $( 20.1 ) and $( 20.4 ), respectively ( 14.5 ) ( 12.2 ) Retiree health care plan, net of income taxes of $ 1.8 and $ 1.9 , respectively 0.7 1.2 Accumulated other comprehensive loss $ ( 483.1 ) $ ( 458.7 )

Interest and Other Expenses, _2

Interest and Other Expenses, Net (Tables)	9 Months Ended
	Sep. 30, 2023
Other Nonoperating Income (Expense) [Abstract]
Schedule of Interest and Other Expenses Net	Interest and other expenses, net consisted of the following: Three Months Ended Nine Months Ended September 30, September 30, 2023 2022 2023 2022 Interest expense $ 21.0 $ 10.7 $ 59.7 $ 31.7 Interest income ( 8.0 ) ( 4.4 ) ( 24.5 ) ( 10.0 ) Foreign exchange loss 6.0 3.8 14.2 8.9 Miscellaneous income, net ( 3.9 ) ( 5.4 ) ( 15.0 ) ( 16.5 ) Interest and other expenses, net $ 15.1 $ 4.7 $ 34.4 $ 14.1

Derivative Financial Instrume_2

Derivative Financial Instruments and Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Effect of Net Investment Hedges on AOCI	The effect of our net investment hedges on AOCI for the three and nine months ended September 30, 2023 and 2022 was as follows: Gain (Loss) Recognized in Other Comprehensive Income Three Months Ended September 30, Nine Months Ended September 30, Instrument 2023 2022 2023 2022 Euro Notes $ 30.6 $ 61.4 $ 11.9 $ 141.2 Cross-currency swaps 6.5 12.2 ( 10.6 ) 23.4
Impact of Changes in Fair Values of Derivatives Designated as Cash Flow Hedges on OCI, AOCI and Earnings	The following tables present the impact that changes in the fair values of derivatives designated as cash flow hedges had on other comprehensive income (“OCI”), AOCI and earnings for the three and nine months ended September 30, 2023 and 2022: Gain (Loss) Recognized in OCI Gain (Loss) Reclassified from AOCI into Income Three Months Ended September 30, Location of Gain (Loss) Reclassified Three Months Ended September 30, Instrument 2023 2022 from AOCI into Income 2023 2022 Cross-currency swaps $ — $ 2.2 Interest and other expenses, net $ — $ 2.1 Foreign currency forward contracts — 0.1 Selling and administrative expenses — ( 0.3 ) Forward starting interest swap — — Interest and other expenses, net 0.1 0.1 Gain (Loss) Recognized in OCI Gain (Loss) Reclassified from AOCI into Income Nine Months Ended September 30, Location of Gain (Loss) Reclassified Nine Months Ended September 30, Instrument 2023 2022 from AOCI into Income 2023 2022 Cross-currency swaps $ — $ 4.5 Interest and other expenses, net $ — $ 4.2 Foreign currency forward contracts — ( 0.2 ) Selling and administrative expenses — ( 0.6 ) Forward starting interest swap — 2.0 Interest and other expenses, net 0.3 0.1
Schedule of fair value hedges instruments	The following tables present the impact that the fair value hedges had on OCI and earnings for the three and nine months ended September 30, 2023 and 2022: Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Income Three Months Ended September 30, Location of Gain (Loss) Three Months Ended September 30, Instrument 2023 2022 Recognized in Income 2023 2022 Intercompany CHF notes $ — $ — Interest and other expenses, net $ ( 3.3 ) $ ( 8.4 ) Cross-currency swaps ( 0.5 ) 1.7 Interest and other expenses, net 3.3 8.8 Gain (Loss) Recognized in OCI Gain (Loss) Recognized in Income Nine Months Ended September 30, Location of Gain (Loss) Nine Months Ended September 30, Instrument 2023 2022 Recognized in Income 2023 2022 Intercompany CHF notes $ — $ — Interest and other expenses, net $ ( 7.4 ) $ ( 16.1 ) Cross-currency swaps ( 2.2 ) 1.4 Interest and other expenses, net 7.4 16.1
Effect of Forward Contracts not Designated as Hedging Instrument	The effect of our forward contracts that are not designated as hedging instruments on the consolidated statements of operations for the three and nine months ended September 30, 2023 and 2022 was as follows: Gain (Loss) Recognized in Income Location of Gain (Loss) Three Months Ended September 30, Nine Months Ended September 30, Instrument Recognized in Income 2023 2022 2023 2022 Foreign currency forward contracts Interest and other expenses, net $ ( 7.3 ) $ ( 14.7 ) $ ( 4.3 ) $ ( 27.9 )
Fair Value of Derivative and Non-Derivative Assets and Liabilities on the Consolidated Balance Sheets	The following tables present the fair value of derivative and non-derivative assets and liabilities on the Consolidated Balance Sheets as of September 30, 2023 and December 31, 2022: Assets September 30, December 31, Balance Sheet Location 2023 2022 Instruments designated as fair value hedges: Cross-currency swaps Accounts Receivable, net 18.6 13.8 Instruments not designated as hedges: Foreign currency forward contracts Accounts Receivable, net — 0.2 Total instruments $ 18.6 $ 14.0 Liabilities September 30, December 31, Balance Sheet Location 2023 2022 Instruments designated as net investment hedges: Euro Notes due in 2026 Long-term debt 526.6 532.7 Euro Notes due in 2027 Long-term debt 419.4 423.9 Cross-currency swaps Accrued liabilities 35.8 25.8 Instruments not designated as hedges: Foreign currency forward contracts Accrued liabilities 4.8 — Total instruments $ 986.6 $ 982.4

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2023
Leases [Abstract]
Components of Lease Expense and Other Information	The components of lease expense were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Operating lease expense $ 35.6 $ 32.1 $ 106.9 $ 96.1 Short-term lease expense 1.1 1.7 3.7 4.3 Other lease expense (a) 2.5 1.3 10.4 10.3 Total lease expense $ 39.2 $ 35.1 $ 121.0 $ 110.7 (a) Other lease expense includes variable lease expense and sublease income. Other information related to leases was as follows: Nine Months Ended September 30, Supplemental Cash Flow Information 2023 2022 Cash paid for amounts included in the measurement of operating lease liabilities $ 102.6 $ 93.4 Operating ROU assets obtained in exchange for lease obligations 107.2 37.5
Supplemental Balance Sheet Information	September 30, December 31, Supplemental Balance Sheet Information 2023 2022 Operating Leases Operating lease ROU assets $ 400.1 $ 365.7 Operating lease liabilities - current (a) $ 102.0 $ 105.5 Operating lease liabilities - long-term 306.2 266.6 Total operating lease liabilities $ 408.2 $ 372.1 (a) Operating lease liabilities - current are included in accrued expenses on our Consolidated Balance Sheets.
Weighted Average Remaining Lease Term and Discount Rate	September 30, 2023 2022 Weighted Average Remaining Lease Term Operating leases 5.5 years 5.0 years Weighted Average Discount Rate Operating leases 3.6 % 2.4 %
Maturities of Operating Lease Liabilities	Maturities of operating lease liabilities as of September 30, 2023 were as follows: Period Ending September 30, 2023 Operating Leases 2023 $ 30.1 2024 107.3 2025 80.6 2026 61.8 2027 51.4 2028 41.6 Thereafter 87.1 Total future undiscounted lease payments 459.9 Less imputed interest ( 51.7 ) Total operating lease liabilities $ 408.2

Segment Data (Tables)

Segment Data (Tables)	9 Months Ended
	Sep. 30, 2023
Segment Reporting [Abstract]
Schedule of Segment Data	Three Months Ended September 30, Nine Months Ended 2023 2022 2023 2022 Revenues from services: Americas: United States (a) $ 752.6 $ 886.6 $ 2,259.3 $ 2,679.9 Other Americas 358.7 353.2 1,080.9 1,073.8 1,111.3 1,239.8 3,340.2 3,753.7 Southern Europe: France 1,209.9 1,159.5 3,657.4 3,590.1 Italy 413.7 395.1 1,293.7 1,294.4 Other Southern Europe 485.1 485.2 1,452.4 1,550.6 2,108.7 2,039.8 6,403.5 6,435.1 Northern Europe 914.2 954.1 2,834.3 3,075.7 APME 564.8 586.9 1,770.1 1,808.8 4,699.0 4,820.6 14,348.1 15,073.3 Intercompany Eliminations ( 23.4 ) ( 19.7 ) ( 64.1 ) ( 55.0 ) Consolidated (b) $ 4,675.6 $ 4,800.9 $ 14,284.0 $ 15,018.3 Operating unit profit: (c) Americas: United States $ 25.4 $ 54.7 $ 82.7 $ 177.7 Other Americas 12.5 16.4 47.0 47.1 37.9 71.1 129.7 224.8 Southern Europe: France 47.9 56.6 142.3 168.5 Italy 27.0 29.0 94.0 93.5 Other Southern Europe 9.5 14.7 30.6 45.2 84.4 100.3 266.9 307.2 Northern Europe ( 30.6 ) 12.8 ( 35.3 ) 26.9 APME 24.2 23.4 71.0 64.9 115.9 207.6 432.3 623.8 Corporate expenses ( 37.4 ) ( 37.0 ) ( 110.8 ) ( 114.8 ) Intangible asset amortization expense ( 8.7 ) ( 9.1 ) ( 26.2 ) ( 28.1 ) Operating profit 69.8 161.5 295.3 480.9 Interest and other expenses, net ( 15.1 ) ( 4.7 ) ( 34.4 ) ( 14.1 ) Earnings before income taxes $ 54.7 $ 156.8 $ 260.9 $ 466.8 (a) In the United States, revenues from services included fees received from the related franchise offices of $ 3.1 and $ 3.7 for the three months ended September 30, 2023 and 2022, respectively, and $ 8.9 and $ 9.7 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 98.6 and $ 121.9 for the three months ended September 30, 2023 and 2022, respectively, and $ 298.7 and $ 360.8 for the nine months ended September 30, 2023 and 2022 , respectively. (b) Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. (c) We evaluate segment performance based on operating unit profit (“OUP”), which is equal to segment revenues less cost of services and branch and national headquarters operating costs. This profit measure does not include goodwill and intangible asset impairment charges or amortization of intangibles related to acquisitions, corporate expenses, interest and other expense amounts or income taxes.

Basis of Presentation and Acc_4

Basis of Presentation and Accounting Policies - Summary of Rollforward of Allowance for Doubtful Accounts (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Accounting Policies [Abstract]
Balance, December 31, 2022	$ 109.3
Provisions charged to earnings	5.4
Write-offs	(10.5)
Currency impact and other	(1.4)
Balance, September 30, 2023	$ 102.8

Basis of Presentation and Acc_5

Basis of Presentation and Accounting Policies - Additional Information (Details) $ in Millions		9 Months Ended
		Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Accounting Policies [Line Items]
Goodwill	[1]	$ 1,620.1	$ 1,628.1
Netherlands | Discount Rates
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)		0.125
Netherlands | Terminal Value Revenue Growth Rate
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)		0.02
Netherlands | Terminal Value OUP Margin
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)		0.032
Northern Europe | Netherlands
Accounting Policies [Line Items]
Goodwill		$ 54.4
Minimum
Accounting Policies [Line Items]
Percentage of goodwill over fair value of reporting unit		20%
Minimum | Other Reporting Units
Accounting Policies [Line Items]
Percentage of goodwill over fair value of reporting unit		20%
Minimum | Netherlands
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)		0.064
Maximum | Netherlands
Accounting Policies [Line Items]
Discount rate for goodwill impairment test (as a percent)		0.012
[1] Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 .

Recent Accounting Standards - A

Recent Accounting Standards - Additional Information (Details)	Mar. 31, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Dec. 31, 2024
Change in accounting principle, accounting standards update, immaterial effect	true

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Revenue from Contract with Customer [Abstract]
Deferred revenue	$ 31.5	$ 35.6

Revenue Recognition - Disaggreg

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended				12 Months Ended
		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023		Sep. 30, 2022		Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	[2]	$ 4,675.6	[1]	$ 4,800.9	[1]	$ 14,284	[3]	$ 15,018.3	[3]
Intercompany Eliminations
Disaggregation of Revenue [Line Items]
Revenue		(23.4)	[1]	(19.7)	[1]	(64.1)	[3]	(55)	[3]
Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue						90
Outcome-Based Solutions and Consulting | United States
Disaggregation of Revenue [Line Items]
Revenue						171.6				$ 58.4
Americas | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		1,111.3	[1]	1,239.8	[1]	3,340.2	[3]	3,753.7	[3]
Americas | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		1,083.8		1,200.8		3,256.9		3,636.3
Americas | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		27.5		39		83.3		117.4
Americas | United States
Disaggregation of Revenue [Line Items]
Revenue		752.6		886.6		2,259.3		2,679.9
Americas | United States | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue	[4]	752.6	[1]	886.6	[1]	2,259.3	[3]	2,679.9	[3]
Americas | United States | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		732.9		855.7		2,198.6		2,585.5
Americas | United States | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		19.7		30.9		60.7		94.4
Americas | Other Americas
Disaggregation of Revenue [Line Items]
Revenue		358.7		353.2		1,080.9		1,073.8
Americas | Other Americas | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		358.7	[1]	353.2	[1]	1,080.9	[3]	1,073.8	[3]
Americas | Other Americas | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		350.9		345.1		1,058.3		1,050.8
Americas | Other Americas | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		7.8		8.1		22.6		23
Americas | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		4,111.4	[1]	4,212.6	[1]	3,023.5	[3]	3,378.7	[3]
Americas | Staffing and Interim | United States
Disaggregation of Revenue [Line Items]
Revenue		673.6	[1]	788.6	[1]	2,018.9	[3]	2,384.4	[3]
Americas | Staffing and Interim | Other Americas
Disaggregation of Revenue [Line Items]
Revenue		332.7	[1]	325.5	[1]	1,004.6	[3]	994.3	[3]
Americas | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		338.3	[1]	332.7	[1]	48.6	[3]	53.5	[3]
Americas | Outcome-Based Solutions and Consulting | United States
Disaggregation of Revenue [Line Items]
Revenue		5.3	[1]	6.2	[1]	14.5	[3]	16	[3]
Americas | Outcome-Based Solutions and Consulting | Other Americas
Disaggregation of Revenue [Line Items]
Revenue		11.5	[1]	13	[1]	34.1	[3]	37.5	[3]
Americas | Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue		142.8	[1]	187.6	[1]	138.9	[3]	203.7	[3]
Americas | Permanent Recruitment | United States
Disaggregation of Revenue [Line Items]
Revenue		33.7	[1]	54.4	[1]	103.5	[3]	166.6	[3]
Americas | Permanent Recruitment | Other Americas
Disaggregation of Revenue [Line Items]
Revenue		12	[1]	13	[1]	35.4	[3]	37.1	[3]
Americas | Other
Disaggregation of Revenue [Line Items]
Revenue		106.5	[1]	87.7	[1]	129.2	[3]	117.8	[3]
Americas | Other | United States
Disaggregation of Revenue [Line Items]
Revenue		40	[1]	37.4	[1]	122.4	[3]	112.9	[3]
Americas | Other | Other Americas
Disaggregation of Revenue [Line Items]
Revenue		2.5	[1]	1.7	[1]	6.8	[3]	4.9	[3]
Southern Europe | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		2,108.7	[1]	2,039.8	[1]	6,403.5	[3]	6,435.1	[3]
Southern Europe | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		2,074.4		2,005.7		6,285.3		6,318.6
Southern Europe | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		34.3		34.1		118.2		116.5
Southern Europe | France
Disaggregation of Revenue [Line Items]
Revenue		1,209.9		1,159.5		3,657.4		3,590.1
Southern Europe | France | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		1,209.9	[1]	1,159.5	[1]	3,657.4	[3]	3,590.1	[3]
Southern Europe | France | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		1,198.6		1,147.8		3,616.2		3,548.2
Southern Europe | France | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		11.3		11.7		41.2		41.9
Southern Europe | Italy
Disaggregation of Revenue [Line Items]
Revenue		413.7		395.1		1,293.7		1,294.4
Southern Europe | Italy | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		413.7	[1]	395.1	[1]	1,293.7	[3]	1,294.4	[3]
Southern Europe | Italy | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		402.7		385		1,254.4		1,258.3
Southern Europe | Italy | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		11		10.1		39.3		36.1
Southern Europe | Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue		485.1		485.2		1,452.4		1,550.6
Southern Europe | Other Southern Europe | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		485.1	[1]	485.2	[1]	1,452.4	[3]	1,550.6	[3]
Southern Europe | Other Southern Europe | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		473.1		472.9		1,414.7		1,512.1
Southern Europe | Other Southern Europe | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		12		12.3		37.7		38.5
Southern Europe | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		1,006.3	[1]	1,114.1	[1]	5,709	[3]	5,775	[3]
Southern Europe | Staffing and Interim | France
Disaggregation of Revenue [Line Items]
Revenue		1,113.8	[1]	1,071.8	[1]	3,348.3	[3]	3,323.2	[3]
Southern Europe | Staffing and Interim | Italy
Disaggregation of Revenue [Line Items]
Revenue		388.8	[1]	372.8	[1]	1,207.1	[3]	1,214.5	[3]
Southern Europe | Staffing and Interim | Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue		390.4	[1]	390.8	[1]	1,153.6	[3]	1,237.3	[3]
Southern Europe | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		16.8	[1]	19.2	[1]	471.3	[3]	482.8	[3]
Southern Europe | Outcome-Based Solutions and Consulting | France
Disaggregation of Revenue [Line Items]
Revenue		67.9	[1]	61.9	[1]	212.3	[3]	200.5	[3]
Southern Europe | Outcome-Based Solutions and Consulting | Italy
Disaggregation of Revenue [Line Items]
Revenue		8	[1]	6.7	[1]	27.6	[3]	24	[3]
Southern Europe | Outcome-Based Solutions and Consulting | Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue		73.5	[1]	77	[1]	231.4	[3]	258.3	[3]
Southern Europe | Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue		45.7	[1]	67.4	[1]	133.6	[3]	132.1	[3]
Southern Europe | Permanent Recruitment | France
Disaggregation of Revenue [Line Items]
Revenue		12.7	[1]	12.9	[1]	45.4	[3]	45.8	[3]
Southern Europe | Permanent Recruitment | Italy
Disaggregation of Revenue [Line Items]
Revenue		12	[1]	11.1	[1]	42.3	[3]	39.3	[3]
Southern Europe | Permanent Recruitment | Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue		14.5	[1]	15.3	[1]	45.9	[3]	47	[3]
Southern Europe | Other
Disaggregation of Revenue [Line Items]
Revenue		42.5	[1]	39.1	[1]	89.6	[3]	45.2	[3]
Southern Europe | Other | France
Disaggregation of Revenue [Line Items]
Revenue		15.5	[1]	12.9	[1]	51.4	[3]	20.6	[3]
Southern Europe | Other | Italy
Disaggregation of Revenue [Line Items]
Revenue		4.9	[1]	4.5	[1]	16.7	[3]	16.6	[3]
Southern Europe | Other | Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue		6.7	[1]	2.1	[1]	21.5	[3]	8	[3]
Northern Europe | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		914.2	[1]	954.1	[1]	2,834.3	[3]	3,075.7	[3]
Northern Europe | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		885.7		919.4		2,740.1		2,965.3
Northern Europe | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		28.5		34.7		94.2		110.4
Northern Europe | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		773.8	[1]	815.3	[1]	2,389.2	[3]	2,627.4	[3]	$ 24.8
Northern Europe | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		78.4	[1]	76.1	[1]	250.7	[3]	249	[3]
Northern Europe | Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue		36.5	[1]	42.9	[1]	119.5	[3]	135.2	[3]
Northern Europe | Other
Disaggregation of Revenue [Line Items]
Revenue		25.5	[1]	19.8	[1]	74.9	[3]	64.1	[3]
APME | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		564.8	[1]	586.9	[1]	1,770.1	[3]	1,808.8	[3]
APME | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		550.3		565.3		1,713.3		1,742.9
APME | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		14.5		21.6		56.8		65.9
APME | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		438.3	[1]	447.8	[1]	1,346.4	[3]	1,366.5	[3]
APME | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		93.7	[1]	91.8	[1]	292.1	[3]	299.9	[3]
APME | Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue		21.4	[1]	38	[1]	96.9	[3]	115.7	[3]
APME | Other
Disaggregation of Revenue [Line Items]
Revenue		11.4	[1]	9.3	[1]	34.7	[3]	26.7	[3]
Northern Europe and APME | Reportable subsegments
Disaggregation of Revenue [Line Items]
Revenue		4,699	[1]	4,820.6	[1]	14,348.1	[3]	15,073.3	[3]
Northern Europe and APME | Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue		4,594.2		4,691.2		13,995.6		14,663.1
Northern Europe and APME | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue		104.8		129.4		352.5		410.2
Northern Europe and APME | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		1,893	[1]	1,835.4	[1]	12,468.1	[3]	13,147.6	[3]
Northern Europe and APME | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		149.4	[1]	145.6	[1]	1,062.7	[3]	1,085.2	[3]
Northern Europe and APME | Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue		39.2	[1]	39.3	[1]	488.9	[3]	586.7	[3]
Northern Europe and APME | Other
Disaggregation of Revenue [Line Items]
Revenue		$ 27.1	[1]	$ 19.5	[1]	$ 328.4	[3]	$ 253.8	[3]
[1] Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. In the United States, revenues from services included fees received from the related franchise offices of $ 3.1 and $ 3.7 for the three months ended September 30, 2023 and 2022, respectively, and $ 8.9 and $ 9.7 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 98.6 and $ 121.9 for the three months ended September 30, 2023 and 2022, respectively, and $ 298.7 and $ 360.8 for the nine months ended September 30, 2023 and 2022 , respectively.

Revenue Recognition - Disaggr_2

Revenue Recognition - Disaggregation of Revenue (Parenthetical) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended				12 Months Ended
		Sep. 30, 2023	[1]	Sep. 30, 2022	[1]	Sep. 30, 2023		Sep. 30, 2022	[3]	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenue	[2]	$ 4,675.6		$ 4,800.9		$ 14,284	[3]	$ 15,018.3
Outcome-Based Solutions and Consulting | United States
Disaggregation of Revenue [Line Items]
Revenue						171.6				$ 58.4
Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue						90
Northern Europe | Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue		78.4		76.1		250.7	[3]	249
Northern Europe | Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue		$ 773.8		$ 815.3		$ 2,389.2	[3]	$ 2,627.4		$ 24.8
[1] Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting.

Share-Based Compensation Plans

Share-Based Compensation Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation			$ 20	$ 29.2
Consideration received from share-based awards			1.8	0.4
Selling and administrative expenses
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share-based compensation	$ 8	$ 7.6	$ 20	$ 29.2

Acquisitions and Dispositions -

Acquisitions and Dispositions - Additional Information (Details) - USD ($) $ in Millions		9 Months Ended
	Sep. 29, 2023	Sep. 30, 2023	Sep. 30, 2022
Business Acquisition [Line Items]
Cash proceeds for segment consideration	$ 6.5
Cash consideration paid		$ 0
Cash consideration for acquisitions			$ 18.1
Selling, General and Administrative Expenses [Member]
Business Acquisition [Line Items]
Net loss on disposition	$ 1.3

Restructuring Costs - Additiona

Restructuring Costs - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	9 Months Ended
	Jul. 31, 2023	Sep. 30, 2023	Dec. 31, 2022
Restructuring and Related Activities [Abstract]
Restructuring costs		$ 47.1
Other Costs		12.1
Payments for restructuring reserve		31.7
Restructuring reserve		40.7	$ 13.2
Severance Costs	$ 32.2	$ 47.1

Restructuring Costs - Schedule

Restructuring Costs - Schedule of Changes in Restructuring Reserve (Details) - USD ($) $ in Millions		1 Months Ended	9 Months Ended
		Jul. 31, 2023	Sep. 30, 2023
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period			$ 13.2
Severance costs		$ 32.2	47.1
Other Costs			12.1
Costs paid			(31.7)
Balance, end of period			40.7
Reportable segments | Americas
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	[1]		1
Severance costs	[1]		7.6
Other Costs	[1]		0
Costs paid	[1]		(4.4)
Balance, end of period	[1]		4.2
Reportable segments | Southern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	[2]		1
Severance costs	[2]		9.3
Other Costs	[2]		0.9
Costs paid	[2]		(3.3)
Balance, end of period	[2]		7.9
Reportable segments | Northern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period			11
Severance costs			26.5
Other Costs			11.2
Costs paid			(21.1)
Balance, end of period			27.6
Reportable segments | APME
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period			0.2
Severance costs			3.3
Other Costs			0
Costs paid			(2.5)
Balance, end of period			1
Corporate
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period			0
Severance costs			0.4
Other Costs			0
Costs paid			(0.4)
Balance, end of period			$ 0
[1] Balances related to the United States were $ 0.6 and $ 2.7 as of December 31, 2022 and September 30, 2023 , respectively. Balances related to France were $ 0.9 and 1.7 as of December 31, 2022 and September 30, 2023 , respectively. In July 2023, we announced our decision to wind down our Proservia managed services business in Germany. We expect to record significant restructuring expense in the fourth quarter of 2023 related to this wind down. A significant portion of the restructuring costs represent payments to impacted employees. A component of these payments are severance related costs amounting to $ 32.2 agreed with the applicable work councils in October 2023, which will be recorded in the fourth quarter of 2023. Communications are continuing with impacted parties, and we expect additional restructuring costs to be recorded through the end of the fourth quarter of 2023.

Restructuring Costs - Schedul_2

Restructuring Costs - Schedule of Changes in Restructuring Reserve (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 40.7	$ 13.2
Americas | United States
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	2.7	0.6
Southern Europe | France
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 1.7	$ 0.9

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jan. 01, 2023	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Income Tax [Line Items]
Effective income tax rate (as percent)		44.70%		33.60%
Effective tax rate			29%		30.30%
U.S. Federal statutory rate (as percent)		21%		21%
Gross unrecognized tax benefits		$ 33.8		$ 33.8		$ 81.6
Reduced unrecognized tax benefits		$ 45.3
Gross recognized tax benefits				$ 6
Income tax examination year under examination				2016
Maximum
Income Tax [Line Items]
Corporate tax rate	0.75%
Minimum
Income Tax [Line Items]
Corporate tax rate	0.375%
Earliest Tax Year | Maximum
Income Tax [Line Items]
Corporate tax rate	0.75%
Earliest Tax Year | Minimum
Income Tax [Line Items]
Corporate tax rate	0.375%
Latest Tax Year
Income Tax [Line Items]
Income tax examination year under examination				2023
French
Income Tax [Line Items]
Effective income tax rate (as percent)		44.70%		33.60%

Net Earnings Per Share - Calcul

Net Earnings Per Share - Calculations of Net Earnings Per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net earnings available to common shareholders	$ 30.3	$ 65.2	$ 77.8	$ 111.3	$ 122.2	$ 91.6	$ 173.3	$ 325.1
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic	49.5			51.7			50.1	52.6
Weighted-average common shares outstanding - diluted	50.1			52.3			50.7	53.3
Net earnings per share - basic	$ 0.61			$ 2.15			$ 3.46	$ 6.18
Net earnings per share - diluted	$ 0.6			$ 2.13			$ 3.42	$ 6.1
Effect of dilutive securities - share-based awards
Weighted-average common shares outstanding (in millions)
Effect of dilutive securities	0.6			0.6			0.6	0.7

Net Earnings Per Share - Additi

Net Earnings Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Share-Based Awards
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive securities excluded from the calculation of net earnings (loss) per share - diluted (in shares)	0.6	0.7	0.6	0.5

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Goodwill [Line Items]
Goodwill	[1]	$ 1,620.1	$ 1,628.1
Finite-lived:
Gross		838.4	840.2
Accumulated Amortization		492.7	468.3
Net		345.7	371.9
Indefinite-lived:
Gross		177.9	177.6
Total intangible assets
Gross		1,016.3	1,017.8
Accumulated Amortization		492.7	468.3
Net		523.6	549.5
Tradenames
Indefinite-lived:
Gross	[2]	52	52
Reacquired franchise rights
Indefinite-lived:
Gross		125.9	125.6
Customer relationships
Finite-lived:
Gross		817.2	818.9
Accumulated Amortization		471.7	448.1
Net		345.5	370.8
Other
Finite-lived:
Gross		21.2	21.3
Accumulated Amortization		21	20.2
Net		$ 0.2	$ 1.1
[1] Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 . Balances were net of accumulated impairment loss of $ 139.5 as of both September 30, 2023 and December 31, 2022 .

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Total intangible assets
Goodwill, accumulated impairment loss	$ 694.2	$ 694.2
Indefinite-lived, accumulated impairment loss	$ 139.5	$ 139.5

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Additional Information (Details) $ in Millions	Sep. 30, 2023 USD ($)
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract]
Estimated amortization expense, 2023	$ 8.5
Estimated amortization expense, 2024	32
Estimated amortization expense, 2025	30.3
Estimated amortization expense, 2026	26.8
Estimated amortization expense, 2027	26.2
Estimated amortization expense, 2028	$ 26.2

Goodwill and Other Intangible_6

Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Goodwill [Roll Forward]
Balance, December 31, 2022	$ 1,628.1	[1]
Currency impact	8
Balance, September 30, 2023	1,620.1	[1]
Reportable segments | Americas
Goodwill [Roll Forward]
Balance, December 31, 2022	1,049.6	[2]
Currency impact	0.2	[2]
Balance, September 30, 2023	1,049.4	[2]
Reportable segments | Southern Europe
Goodwill [Roll Forward]
Balance, December 31, 2022	148.2	[3]
Currency impact	1.6	[3]
Balance, September 30, 2023	146.6	[3]
Reportable segments | Northern Europe
Goodwill [Roll Forward]
Balance, December 31, 2022	234.8
Currency impact	2.2
Balance, September 30, 2023	232.6
Reportable segments | APME
Goodwill [Roll Forward]
Balance, December 31, 2022	69.5
Currency impact	(4)
Balance, September 30, 2023	65.5
Corporate
Goodwill [Roll Forward]
Balance, December 31, 2022	126	[4]
Currency impact	0	[4]
Balance, September 30, 2023	$ 126	[4]
[1] Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 . Balances related to the United States w ere $ 1,006.5 as of both December 31, 2022 and September 30, 2023 . Balances related to France were $ 73.3 and $ 72.4 as of December 31, 2022 and September 30, 2023, respectively. Balances related to Italy were $ 3.7 and $3.6 as of December 31, 2022 and September 30, 2023 , respectively The majority of the Corporate balance relates to goodwill attributable to our acquisitions of Right Management ($ 62.1 ) and Jefferson Wells ($ 55.5 ). Jefferson Wells is part of the United States reporting unit. Right Management is allocated to the reporting units of the countries in which Right Management operates. For purposes of monitoring our total assets by segment, we do not allocate the Corporate balances to the respective reportable segments as this is commensurate with how we operate our business. We do, however, include these balances within the appropriate reporting units for our goodwill impairment testing.

Goodwill and Other Intangible_7

Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill	[1]	$ 1,620.1	$ 1,628.1
Jefferson Wells
Goodwill [Roll Forward]
Goodwill		(55.5)	(55.5)
Right Management
Goodwill [Roll Forward]
Goodwill		(62.1)	(62.1)
France
Goodwill [Roll Forward]
Goodwill		72.4	73.3
Americas | United States
Goodwill [Roll Forward]
Goodwill		1,006.5	1,006.5
Southern Europe | Italy
Goodwill [Roll Forward]
Goodwill		$ 3.7	$ 3.7
[1] Balances were net of accumulated impairment loss of $ 694.2 as of both September 30, 2023 and December 31, 2022 .

Debt (Additional Information) (

Debt (Additional Information) (Details) € in Millions	Apr. 30, 2019 EUR (€)
Debt Instrument [Line Items]
Principal amount	€ 55.4

Retirement Plans - Components o

Retirement Plans - Components of Net Periodic Benefit Cost (Credit) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3.9	$ 4.7	$ 11.6	$ 14.7
Interest cost	5.3	2.1	15.8	6.6
Expected return on assets	(4.8)	(3.6)	(14.2)	(11.1)
Net (gain) loss	(0.8)	0.5	(2.5)	1.4
Prior service credit	0.2	0.2	0.5	0.5
Total benefit cost (credit)	3.8	3.9	11.2	12.1
Retiree Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0.1	0.1	0.4	0.2
Net (gain) loss	0	0	0	0.1
Prior service credit	(0.2)	(0.2)	(0.6)	(0.6)
Total benefit cost (credit)	$ (0.1)	$ (0.1)	$ (0.2)	$ (0.3)

Retirement Plans - Additional I

Retirement Plans - Additional Information (Details) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions to pension plans	$ 4	$ 14.6
Estimated employer contribution to pension plans during remainder of current fiscal year	20	20
Retiree Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions to pension plans	$ 0.3	$ 0.9

Shareholders' Equity - Componen

Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Millions	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 2,413.3	$ 2,449.8	$ 2,509.4	$ 2,458.1	$ 2,416.6	$ 2,444.8	$ 2,556.1	$ 2,531.7
Defined benefit pension plans, net of income tax benefit of $(20.1) and $(20.4), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(14.5)			(12.2)
Retiree health care plan, net of income taxes of $1.8 and $1.9, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	0.7			1.2
Gain on interest rate swap, net of income taxes of $0.4 on both dates
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	1.1			1.4
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(362.5)			(369.7)
Translation loss on long-term intercompany loans, net of income taxes of $19.1 on both dates
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(133.4)			(132.8)
Gain (loss) on derivative instruments, net of income tax benefit of $(4.8) and $(5.3), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	25.5			53.4
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (483.1)	$ (459.5)	$ (451.6)	$ (458.7)	$ (533.2)	$ (471.5)	$ (399.6)	$ (389.4)

Shareholders' Equity - Compon_2

Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Parenthetical) (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Gain on interest rate swap, net of income taxes of $0.4 on both dates
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	$ 0.4	$ 0.4
Defined benefit pension plans, net of income tax benefit of $(20.1) and $(20.4), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	(20.1)	(20.4)
Gain (loss) on derivative instruments, net of income taxes (benefit) of $(8.1) and $(5.3), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	(4.8)	(5.3)
Translation loss on long-term intercompany loans, net of income taxes of $19.1 on both dates
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	19.1	19.1
Retiree health care plan, net of income taxes of $1.8 and $1.9, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	$ 1.8	$ 1.9

Shareholders' Equity - Addition

Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		9 Months Ended
	May 05, 2023	May 06, 2022	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Aug. 31, 2023	Aug. 31, 2021	Aug. 31, 2019
Equity, Class of Treasury Stock [Line Items]
Net earnings, net of tax, attributable to noncontrolling interests			$ 15.1	$ 4.7	$ 34.4	$ 14.1
Dividend declared per share	$ 1.47	$ 1.36
Dividend declared date	May 05, 2023	May 06, 2022
Dividend payable date	Jun. 15, 2023	Jun. 15, 2022
Dividend record date	Jun. 01, 2023	Jun. 01, 2022
Shares authorized to be repurchased (in shares)							5,000,000	4,000,000	6,000,000
Shares repurchased (in shares)					1,700,000	2,800,000
Total cost of shares repurchased					$ 129.8
August 2021 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares)						1,600,000
Total cost of shares repurchased						$ 245
August 2019 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares)						1,200,000
Minimum | August 2021 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares remaining authorized for repurchase (in shares)			5,000,000		5,000,000
Maximum | August 2021 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares remaining authorized for repurchase (in shares)			300,000		300,000
Non-Controlling Interests
Equity, Class of Treasury Stock [Line Items]
Net earnings, net of tax, attributable to noncontrolling interests			$ 0.1	$ 0.1	$ 0.2	$ 0.6

Interest and Other Expenses, _3

Interest and Other Expenses, Net - Schedule of Interest and Other Expenses, Net (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Other Nonoperating Income (Expense) [Abstract]
Interest expense	$ 21	$ 10.7	$ 59.7	$ 31.7
Interest income	(8)	(4.4)	(24.5)	(10)
Foreign exchange loss	6	3.8	14.2	8.9
Miscellaneous income, net	(3.9)	(5.4)	(15)	(16.5)
Interest and other expenses, net	$ 15.1	$ 4.7	$ 34.4	$ 14.1

Derivative Financial Instrume_3

Derivative Financial Instruments and Fair Value Measurements - Additional Information (Details) € in Millions, $ in Millions			9 Months Ended
	Jun. 09, 2022 EUR (€)	Mar. 17, 2022 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Mar. 31, 2022	Apr. 30, 2019 EUR (€)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount | €								€ 55.4
Net cash inflow			$ (52.5)	$ (65.3)
Forward agreement gain/loss			2
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair value measured on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deferred compensation plan assets			133.5			$ 115.3
Cash flow hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Net cash inflow		$ 19.2
Forward agreement notional amount | €	€ 300
Forward agreement interest rate	1.936%
Derivatives Notes Repay | €	€ 400
Forward agreement maturity date	Sep. 30, 2022
Fair Value Hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)				1.7975%			1.05973%
Euro-denominated notes | Estimate of fair value measurement | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of long-term debt			909.1			921.7
Euro-denominated notes | Carrying value | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying value of long-term debt			$ 946			$ 956.6
Cross-currency swap | Cash flow hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount | €					€ 202.3
Interest rate (as a percent)			1.256%		1.256%			1.143%
Designated as hedging instrument | Notes due June 2027 | Euro-denominated notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount			$ 419.4		€ 400
Designated as hedging instrument | Notes Due June 2026 | Euro-denominated notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Principal amount			$ 526.6		€ 500

Derivative Financial Instrume_4

Derivative Financial Instruments and Fair Value Measurements - Effect of Net Investment Hedges on AOCI (Details) - Net Investment Hedging - Designated as hedging instrument - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Euro Notes
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income	$ 30.6	$ 61.4	$ 11.9	$ 141.2
Cross-currency swap
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income	$ 6.5	$ 12.2	$ (10.6)	$ 23.4

Derivative Financial Instrume_5

Derivative Financial Instruments and Fair Value Measurements - Impact of Changes in Fair Values of Derivatives Designated as Cash Flow Hedges on OCI, AOCI and Earnings (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative [Line Items]
Derivative Instrument, Gain (Loss) Reclassified from AOCI into Income, Effective Portion, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses
(Loss) Gain Reclassified from AOCI into Income	$ 0.1	$ 0.1
Designated as hedging instrument
Derivative [Line Items]
(Loss) Gain Reclassified from AOCI into Income			$ 0.3	$ 0.1
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
(Loss) Gain Reclassified from AOCI into Income	3.3	8.8	7.4	16.1
Cash flow hedge | Designated as hedging instrument
Derivative [Line Items]
(Loss) Gain Reclassified from AOCI into Income			0	(0.6)
Cash flow hedge | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
(Loss) Gain Reclassified from AOCI into Income	(3.3)	(8.4)	(7.4)	(16.1)
Cross-currency swap | Cash flow hedge | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0	2.2	0	4.5
(Loss) Gain Reclassified from AOCI into Income	0	2.1	0	4.2
Cross-currency swap | Cash flow hedge | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in OCI	(0.5)	1.7	(2.2)	(1.4)
Cross-currency swap | Net Investment Hedging [Member] | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	6.5	12.2	(10.6)	23.4
Foreign currency forward contracts | Cash flow hedge | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0	0.1	0	(0.2)
(Loss) Gain Reclassified from AOCI into Income	0	(0.3)
Intercompany CHF note [Member] | Cash flow hedge | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Gain (Loss) Recognized in OCI	0	0	0	0
Forward Starting Interest Swap | Cash flow hedge | Designated as hedging instrument
Derivative [Line Items]
Gain (Loss) Recognized in OCI	$ 0	$ 0	$ 0	$ 2

Derivative Financial Instrume_6

Derivative Financial Instruments and Fair Value Measurements - Effect of Forward Contracts not Designated and Fair Value Hedging Instrument (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income			$ 2
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses	Interest And Other Non Operating Expenses
Not designated as hedging instrument | Foreign Exchange Forward
Derivative [Line Items]
Amount of Gain (Loss) Recognized in Income	$ (7.3)	$ (14.7)	$ (4.3)	$ (27.9)

Derivative Financial Instrume_7

Derivative Financial Instruments and Fair Value Measurements - Fair Value of Derivative and Non-Derivative Assets and Liabilities on the Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Assets	$ 18.6	$ 14
Liabilities	986.6	982.4
Not designated as hedging instrument | Foreign currency forward contracts | Prepaid expenses and other assets
Derivatives, Fair Value [Line Items]
Assets	0	0.2
Liabilities	4.8	0
Fair Value Hedge | Designated as hedging instrument | Cross-currency swap | Prepaid expenses and other assets
Derivatives, Fair Value [Line Items]
Assets	18.6	13.8
Net Investment Hedging | Designated as hedging instrument | Cross-currency swap | Accrued liabilities
Derivatives, Fair Value [Line Items]
Liabilities	35.8	25.8
Net Investment Hedging | Designated as hedging instrument | Euro Notes due in 2026 | Long-term debt
Derivatives, Fair Value [Line Items]
Liabilities	526.6	532.7
Net Investment Hedging | Designated as hedging instrument | Euro Notes Due In 2027 | Long-term debt
Derivatives, Fair Value [Line Items]
Liabilities	$ 419.4	$ 423.9

Leases - Components of Lease Ex

Leases - Components of Lease Expense and Other Information (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Leases [Abstract]
Operating lease expense		$ 35.6	$ 32.1	$ 106.9	$ 96.1
Short-term lease expense		1.1	1.7	3.7	4.3
Other lease expense	[1]	2.5	1.3	10.4	10.3
Total lease expense		$ 39.2	$ 35.1	121	110.7
Supplemental Cash Flow Information
Cash paid for amounts included in the measurement of operating lease liabilities				102.6	93.4
Operating ROU assets obtained in exchange for lease obligations				$ 107.2	$ 37.5
[1] Other lease expense includes variable lease expense and sublease income.

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Operating Leases
Operating lease ROU assets		$ 400.1	$ 365.7
Operating lease liabilities - current	[1]	102	105.5
Long-term operating lease liability		(306.2)	(266.6)
Total operating lease liabilities		$ 408.2	$ 372.1
[1] Operating lease liabilities - current are included in accrued expenses on our Consolidated Balance Sheets.

Leases - Weighted Average Remai

Leases - Weighted Average Remaining Lease Term and Discount Rate (Details)	Sep. 30, 2023	Sep. 30, 2022
Weighted Average Remaining Lease Term
Operating leases	5 years 6 months	5 years
Weighted Average Discount Rate
Operating leases	3.60%	2.40%

Leases - Maturities of Operatin

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Period Ending March 31, 2021
2023	$ 30.1
2024	107.3
2025	80.6
2026	61.8
2027	51.4
2028	41.6
Thereafter	87.1
Total future undiscounted lease payments	459.9
Less imputed interest	(51.7)
Total operating lease liabilities	$ 408.2	$ 372.1

Segment Data - Schedule of Segm

Segment Data - Schedule of Segment Data (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023		Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenues from services	[2]	$ 4,675.6	[1]	$ 4,800.9	[1]	$ 14,284	[3]	$ 15,018.3	[3]
Corporate expenses		(37.4)		(37)		(110.8)		(114.8)
Intangible asset amortization expense		(8.7)		(9.1)		(26.2)		(28.1)
Operating profit		69.8		161.5		295.3		480.9
Interest and other expenses, net		(15.1)		(4.7)		(34.4)		(14.1)
Earnings before income taxes		54.7		156.8		260.9		466.8
Americas
Segment Reporting Information [Line Items]
Operating unit profit	[4]	37.9		71.1		129.7		224.8
Southern Europe
Segment Reporting Information [Line Items]
Operating unit profit	[4]	84.4		100.3		266.9		307.2
Northern Europe
Segment Reporting Information [Line Items]
Operating unit profit	[4]	(30.6)		12.8		(35.3)		26.9
Northern Europe and APME
Segment Reporting Information [Line Items]
Operating unit profit	[4]	115.9		207.6		432.3		623.8
Consolidation Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues from services		(23.4)		(19.7)		(64.1)		(55)
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues from services		(23.4)	[1]	(19.7)	[1]	(64.1)	[3]	(55)	[3]
United States | Americas
Segment Reporting Information [Line Items]
Revenues from services		752.6		886.6		2,259.3		2,679.9
Other Americas | Americas
Segment Reporting Information [Line Items]
Revenues from services		358.7		353.2		1,080.9		1,073.8
France | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		1,209.9		1,159.5		3,657.4		3,590.1
Italy | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		413.7		395.1		1,293.7		1,294.4
Other Southern Europe | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		485.1		485.2		1,452.4		1,550.6
Reportable subsegments | Americas
Segment Reporting Information [Line Items]
Revenues from services		1,111.3	[1]	1,239.8	[1]	3,340.2	[3]	3,753.7	[3]
Reportable subsegments | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		2,108.7	[1]	2,039.8	[1]	6,403.5	[3]	6,435.1	[3]
Reportable subsegments | Northern Europe
Segment Reporting Information [Line Items]
Revenues from services		914.2	[1]	954.1	[1]	2,834.3	[3]	3,075.7	[3]
Reportable subsegments | APME
Segment Reporting Information [Line Items]
Revenues from services		564.8	[1]	586.9	[1]	1,770.1	[3]	1,808.8	[3]
Operating unit profit	[4]	24.2		23.4		71		64.9
Reportable subsegments | Northern Europe and APME
Segment Reporting Information [Line Items]
Revenues from services		4,699	[1]	4,820.6	[1]	14,348.1	[3]	15,073.3	[3]
Reportable subsegments | United States | Americas
Segment Reporting Information [Line Items]
Revenues from services	[5]	752.6	[1]	886.6	[1]	2,259.3	[3]	2,679.9	[3]
Operating unit profit	[4]	25.4		54.7		82.7		177.7
Reportable subsegments | Other Americas | Americas
Segment Reporting Information [Line Items]
Revenues from services		358.7	[1]	353.2	[1]	1,080.9	[3]	1,073.8	[3]
Operating unit profit	[4]	12.5		16.4		47		47.1
Reportable subsegments | France | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		1,209.9	[1]	1,159.5	[1]	3,657.4	[3]	3,590.1	[3]
Operating unit profit	[4]	47.9		56.6		142.3		168.5
Reportable subsegments | Italy | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		413.7	[1]	395.1	[1]	1,293.7	[3]	1,294.4	[3]
Operating unit profit	[4]	27		29		94		93.5
Reportable subsegments | Other Southern Europe | Southern Europe
Segment Reporting Information [Line Items]
Revenues from services		485.1	[1]	485.2	[1]	1,452.4	[3]	1,550.6	[3]
Operating unit profit	[4]	$ 9.5		$ 14.7		$ 30.6		$ 45.2
[1] Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. We evaluate segment performance based on operating unit profit (“OUP”), which is equal to segment revenues less cost of services and branch and national headquarters operating costs. This profit measure does not include goodwill and intangible asset impairment charges or amortization of intangibles related to acquisitions, corporate expenses, interest and other expense amounts or income taxes. In the United States, revenues from services included fees received from the related franchise offices of $ 3.1 and $ 3.7 for the three months ended September 30, 2023 and 2022, respectively, and $ 8.9 and $ 9.7 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 98.6 and $ 121.9 for the three months ended September 30, 2023 and 2022, respectively, and $ 298.7 and $ 360.8 for the nine months ended September 30, 2023 and 2022 , respectively.

Segment Data - Schedule of Se_2

Segment Data - Schedule of Segment Data (Parenthetical) (Details) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023		Sep. 30, 2022
Segment Reporting Information [Line Items]
Revenues from services	[2]	$ 4,675.6	[1]	$ 4,800.9	[1]	$ 14,284	[3]	$ 15,018.3	[3]
Franchise revenue		243.5		264		744.3		804.8
Franchise fees
Segment Reporting Information [Line Items]
Revenues from services		3.8		4.4		11		11.9
Americas | United States
Segment Reporting Information [Line Items]
Revenues from services		752.6		886.6		2,259.3		2,679.9
Americas | United States | Franchise fees
Segment Reporting Information [Line Items]
Revenues from services		3.1		3.7		8.9		9.7
Franchise revenue		$ 98.6		$ 121.9		$ 298.7		$ 360.8
[1] Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 58.4 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 24.8 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting. Our consolidated revenues from services include fees received from our franchise offices of $ 3.8 and $ 4.4 for the three months ended September 30, 2023 and 2022, respectively, and $ 11.0 and $ 11.9 for the nine months ended September 30, 2023 and 2022, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $ 243.5 and $ 264.0 for the three months ended September 30, 2023 and 2022, respectively, and $ 744.3 and $ 804.8 for the nine months ended September 30, 2023 and 2022 , respectively. Certain service line revenues for the United States and Northern Europe were reclassified for the 2022 comparative period to align with the current period presentation. In the United States, $ 171.6 was reclassified from Outcome-Based Solutions and Consulting to Staffing and Interim. In Northern Europe, $ 90.0 was reclassified from Staffing and Interim to Outcome-Based Solutions and Consulting.