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Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2020	Aug. 05, 2020
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		58,071,017
Document Quarterly Report	true
Document Transition Report	false
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
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 (Unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Cash and cash equivalents	$ 1,438.6	$ 1,025.8
Accounts receivable, less allowance for doubtful accounts of $117.7 and $113.5, respectively	4,224.6	5,273.1
Prepaid expenses and other assets	229.5	185.6
Total current assets	5,892.7	6,484.5
Other Assets:
Goodwill	1,178.2	1,260.1
Intangible assets, less accumulated amortization of $401.6 and $389.4, respectively	255.1	268.6
Operating lease right-of-use asset	409.1	448.5
Other assets	588.1	618.8
Total other assets	2,430.5	2,596.0
Property and Equipment:
Land, buildings, leasehold improvements and equipment	593.9	605.5
Less: accumulated depreciation and amortization	457.5	462.2
Net property and equipment	136.4	143.3
Total assets	8,459.6	9,223.8
Current Liabilities:
Accounts payable	2,243.5	2,474.9
Employee compensation payable	161.7	206.4
Accrued liabilities	499.6	545.4
Accrued payroll taxes and insurance	572.8	649.7
Value added taxes payable	419.5	504.0
Short-term borrowings and current maturities of long-term debt	40.5	61.0
Total current liabilities	3,937.6	4,441.4
Other Liabilities:
Long-term debt	1,014.3	1,012.4
Long-term operating lease liability	308.5	336.7
Other long-term liabilities	656.4	671.8
Total other liabilities	1,979.2	2,020.9
ManpowerGroup shareholders' equity
Preferred stock, $.01 par value, authorized 25,000,000 shares, none issued	0.0	0.0
Common stock, $.01 par value, authorized 125,000,000 shares, issued 117,499,079 and 117,190,883 shares, respectively	1.2	1.2
Capital in excess of par value	3,388.0	3,370.6
Retained earnings	3,368.2	3,494.1
Accumulated other comprehensive loss	(479.1)	(441.0)
Treasury stock at cost, 59,446,363 and 58,517,128 shares, respectively	(3,752.3)	(3,681.9)
Total ManpowerGroup shareholders’ equity	2,526.0	2,743.0
Noncontrolling interests	16.8	18.5
Total shareholders’ equity	2,542.8	2,761.5
Total liabilities and shareholders’ equity	$ 8,459.6	$ 9,223.8

Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current Assets:
Allowance for doubtful accounts	$ 117.7	$ 113.5
Other Assets:
Accumulated amortization on intangible assets	$ 401.6	$ 389.4
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)	117,499,079	117,190,883
Treasury stock at cost (in shares)	59,446,363	58,517,128

Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenues from services	$ 3,742.2	$ 5,373.1	$ 8,361.3	$ 10,418.0
Cost of services	3,165.5	4,502.7	7,060.6	8,742.8
Gross profit	576.7	870.4	1,300.7	1,675.2
Selling and administrative expenses, excluding goodwill impairment charges	559.9	675.6	1,246.2	1,374.9
Goodwill impairment charges	66.8	64.0	66.8	64.0
Selling and administrative expenses	626.7	739.6	1,313.0	1,438.9
Operating (loss) profit	(50.0)	130.8	(12.3)	236.3
Interest and other expenses (income), net	5.8	(70.2)	26.3	(58.3)
(Loss) earnings before income taxes	(55.8)	201.0	(38.6)	294.6
Provision for income taxes	8.6	73.7	24.1	113.8
Net (loss) earnings	$ (64.4)	$ 127.3	$ (62.7)	$ 180.8
Net (loss) earnings per share - basic (in dollars per share)	$ (1.11)	$ 2.12	$ (1.07)	$ 3.00
Net (loss) earnings per share - diluted (in dollars per share)	$ (1.11)	$ 2.11	$ (1.07)	$ 2.98
Weighted average shares - basic (in shares)	58.2	60.0	58.5	60.3
Weighted average shares - diluted (in shares)	58.2	60.4	58.5	60.7

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Statement Of Income And Comprehensive Income [Abstract]
Net (loss) earnings	$ (64.4)	$ 127.3	$ (62.7)	$ 180.8
Other comprehensive income (loss):
Foreign currency translation adjustments	37.3	32.9	(47.6)	2.3
Reclassification of currency translation adjustment to income related to disposition of partially held equity interest		(32.5)		(32.5)
Translation adjustments on derivative instruments, net of income taxes of $(5.3), $(3.1), $0.1 and $2.0, respectively	(9.3)	(11.1)	1.4	6.3
Translation adjustments of long-term intercompany loans	(1.9)	(4.2)	(0.4)	6.8
Defined benefit pension plans and retiree health care plan, net of income taxes of $(0.1), $0.0, $7.6 and $0.1, respectively	0.6	0.2	1.9	0.4
Pension settlement related to a U.S. plan, net of income taxes of $(3.9)			6.6
Total other comprehensive income (loss)	26.7	(14.7)	(38.1)	(16.7)
Comprehensive (loss) income	$ (37.7)	$ 112.6	$ (100.8)	$ 164.1

Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other comprehensive income (loss):
Income tax expense (benefit) on translation adjustments on derivative instruments	$ (5.3)	$ (3.1)	$ 0.1	$ 2.0
Income tax expense on defined benefit pension plans and retiree health care plan	$ (0.1)	$ 0.0	7.6	$ 0.1
Income tax expense on pension plan settlement			$ (3.9)

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities:
Net (loss) earnings	$ (62.7)	$ 180.8
Adjustments to reconcile net (loss) earnings to net cash provided by operating activities:
Depreciation and amortization	37.0	39.0
Noncash gain on disposition of previously held equity interest		(80.4)
Noncash goodwill and other impairment charges	71.3	64.0
Deferred income taxes	(7.9)	13.7
Provision for doubtful accounts	10.9	11.5
Share-based compensation	11.5	12.9
Changes in operating assets and liabilities, excluding the impact of acquisitions:
Accounts receivable	988.3	(120.9)
Other assets	(27.2)	81.3
Other liabilities	(425.1)	75.2
Cash provided by operating activities	596.1	277.1
Cash Flows from Investing Activities:
Capital expenditures	(18.9)	(24.0)
Acquisition of businesses, net of cash acquired	(1.7)	114.7
Proceeds from the sale of subsidiaries, investments, property and equipment	0.8	8.0
Cash (used in) provided by investing activities	(18.1)	98.7
Cash Flows from Financing Activities:
Net change in short-term borrowings	(17.8)	(3.0)
Proceeds from long-term debt	1.1	7.6
Repayments of long-term debt	(0.1)	(0.1)
Payments of contingent consideration for acquisitions	(1.7)	(22.8)
Proceeds from share-based awards and sale of subsidiaries	6.8	5.5
Payments to noncontrolling interest	(0.8)	(2.1)
Other share-based award transactions	(6.6)	(7.3)
Repurchases of common stock	(63.8)	(101.0)
Dividends paid	(63.2)	(65.2)
Cash used in financing activities	(146.1)	(188.4)
Effect of exchange rate changes on cash	(19.1)	(8.9)
Change in cash and cash equivalents	412.8	178.5
Cash and cash equivalents, beginning of period	1,025.8	591.9
Cash and cash equivalents, end of period	1,438.6	770.4
Supplemental Cash Flow Information:
Interest Paid	21.2	21.4
Income taxes paid, net	59.5	74.8
Non-cash operating activity: Right-of-use assets obtained in exchange for new operating lease liabilities	$ 26.0	$ 69.7

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, 2018	$ 2,698.5	$ 1.2	$ 3,337.5	$ 3,157.7	$ (399.8)	$ (3,471.7)	$ 73.6
Balance, beginning of period (in shares) at Dec. 31, 2018		116,795,899
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	53.5			53.5
Other comprehensive income (loss)	(2.0)				(2.0)
Issuances under equity plans	(4.9)		0.4			(5.3)
Issuances under equity plans (in shares)		247,325
Share-based compensation expense	4.6		4.6
Repurchases of common stock	(101.0)					(101.0)
Noncontrolling interest transactions	1.2		0.5				0.7
Balance, end of period at Mar. 31, 2019	2,649.9	$ 1.2	3,343.0	3,211.2	(401.8)	(3,578.0)	74.3
Balance, end of period (in shares) at Mar. 31, 2019		117,043,224
Balance, beginning of period at Dec. 31, 2018	2,698.5	$ 1.2	3,337.5	3,157.7	(399.8)	(3,471.7)	73.6
Balance, beginning of period (in shares) at Dec. 31, 2018		116,795,899
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	180.8
Other comprehensive income (loss)	(16.7)
Balance, end of period at Jun. 30, 2019	2,694.5	$ 1.2	3,354.4	3,273.3	(416.5)	(3,579.9)	62.0
Balance, end of period (in shares) at Jun. 30, 2019		117,163,468
Balance, beginning of period at Mar. 31, 2019	2,649.9	$ 1.2	3,343.0	3,211.2	(401.8)	(3,578.0)	74.3
Balance, beginning of period (in shares) at Mar. 31, 2019		117,043,224
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	127.3			127.3
Other comprehensive income (loss)	(14.7)				(14.7)
Issuances under equity plans	2.0		3.9			(1.9)
Issuances under equity plans (in shares)		120,244
Share-based compensation expense	8.3		8.3
Dividends	(65.2)			(65.2)
Noncontrolling interest transactions	(13.1)		(0.8)				(12.3)
Balance, end of period at Jun. 30, 2019	2,694.5	$ 1.2	3,354.4	3,273.3	(416.5)	(3,579.9)	62.0
Balance, end of period (in shares) at Jun. 30, 2019		117,163,468
Balance, beginning of period at Dec. 31, 2019	2,761.5	$ 1.2	3,370.6	3,494.1	(441.0)	(3,681.9)	18.5
Balance, beginning of period (in shares) at Dec. 31, 2019		117,190,883
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	1.7			1.7
Other comprehensive income (loss)	(64.8)				(64.8)
Issuances under equity plans	(0.5)		5.9			(6.4)
Issuances under equity plans (in shares)		293,298
Share-based compensation expense	4.6		4.6
Repurchases of common stock	(63.8)					(63.8)
Noncontrolling interest transactions	0.3						0.3
Balance, end of period at Mar. 31, 2020	2,639.0	$ 1.2	3,381.1	3,495.8	(505.8)	(3,752.1)	18.8
Balance, end of period (in shares) at Mar. 31, 2020		117,484,181
Balance, beginning of period at Dec. 31, 2019	2,761.5	$ 1.2	3,370.6	3,494.1	(441.0)	(3,681.9)	18.5
Balance, beginning of period (in shares) at Dec. 31, 2019		117,190,883
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	(62.7)
Other comprehensive income (loss)	(38.1)
Balance, end of period at Jun. 30, 2020	2,542.8	$ 1.2	3,388.0	3,368.2	(479.1)	(3,752.3)	16.8
Balance, end of period (in shares) at Jun. 30, 2020		117,499,079
Balance, beginning of period at Mar. 31, 2020	2,639.0	$ 1.2	3,381.1	3,495.8	(505.8)	(3,752.1)	18.8
Balance, beginning of period (in shares) at Mar. 31, 2020		117,484,181
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net (loss) earnings	(64.4)			(64.4)
Other comprehensive income (loss)	26.7				26.7
Issuances under equity plans	(0.2)					(0.2)
Issuances under equity plans (in shares)		14,898
Share-based compensation expense	6.9		6.9
Dividends	(63.2)			(63.2)
Noncontrolling interest transactions	(2.0)						(2.0)
Balance, end of period at Jun. 30, 2020	$ 2,542.8	$ 1.2	$ 3,388.0	$ 3,368.2	$ (479.1)	$ (3,752.3)	$ 16.8
Balance, end of period (in shares) at Jun. 30, 2020		117,499,079

Basis of Presentation and Accounting Policies

6 Months Ended

Jun. 30, 2020

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 2019 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.

COVID-19

The global spread of COVID-19, which was declared a global pandemic by the World Health Organization in March 2020, has created significant volatility, uncertainty and global macroeconomic disruption. Our business, operations and consolidated financial statements for the three and six months ended June 30, 2020 were significantly negatively impacted by the COVID-19 crisis. By the end of March, significant lockdown measures had been implemented in our main markets in Europe and North America, as well as in certain other countries. As the second quarter of 2020 drew to a close, indications were that the impact of the COVID-19 crisis had been contained in many parts of the world, and economies had begun to slowly reopen. However, some countries in Latin America and parts of the United States continue to deal with the COVID-19 crisis at elevated levels. Continued uncertainty remains as to the future impact of the pandemic on global and local economies.

We are continuing to monitor and assess the impacts of the COVID-19 pandemic and we expect that our financial condition, liquidity and future results of operations will continue to be adversely affected. However, we cannot predict with certainty what the impact will be on future periods. For further information on the impacts of COVID-19 on our business, operations and financial results, see Part I, Item 2: Management’s Discussion and Analysis of Financial Condition and Results of Operations.

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:

	Six Months Ended June 30, 2020
Balance, December 31, 2019	$	113.5
Provisions charged to earnings		10.8
Write-offs		(9.6	)
Translation adjustments		(0.8	)
Reclassifications and other		3.8
Balance, June 30, 2020	$	117.7

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.

Payroll Tax Credit

In April 2019, we sold a portion of our French payroll tax credits earned in 2018 for net proceeds of $103.5 (€92.0). We derecognized these receivables and the additional interest upon the sale date as the terms of the agreement are such that the transaction qualifies for sale treatment in accordance with the accounting guidance on the transfer and servicing of assets. The discount on the sale of these receivables was recorded in cost of services as a reduction of the payroll tax credits.

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 second quarter of 2019, we determined that it was more likely than not that the fair value of the Germany reporting unit was below its carrying amount and performed an interim goodwill impairment test. As a result of the interim test, we wrote down the carrying value of the Germany reporting unit to its estimated fair value and recognized a non-cash impairment charge loss of $60.2 during the second quarter of 2019. As of the date of our last annual impairment test, performed during the third quarter of 2019, the fair value of each reporting unit was at least 20% in excess of the respective reporting unit’s carrying value with the exception of the Germany reporting unit.

For the second quarter of 2020, in connection with the preparation of our quarterly financial statements, we assessed the changes in circumstances that occurred during the quarter to determine if it was more likely than not that the fair value of any reporting unit was below its carrying amount. We identified several factors related to our Germany reporting unit that led us to conclude that it was more likely than not that the fair value of the reporting unit was below its carrying amount. These factors included sustained operating losses resulted from the ongoing decline and increased uncertainty in the outlook of the manufacturing sector, particularly the automotive sector in Germany, coupled with the significant implications of COVID-19. Our German business has not experienced the improvement in the rate of revenue decline as the second quarter progressed that many of our other European markets have experienced, and if we continue to experience sustained revenue declines and operating losses we may have to consider further actions to optimize our business structure.

As we determined that it was more likely than not that the fair value of the Germany reporting unit was below its carrying amount, we performed an interim impairment test on this reporting unit as of June 30, 2020. As a result of our interim test, we recognized a non-cash impairment loss of $66.8. The Germany reporting unit is included in the Northern Europe segment. The goodwill impairment charge resulted from reductions in the estimated fair value for our Germany reporting unit based on lower expectations for future revenue, profitability and cash flows as compared to the expectations of the 2019 annual goodwill impairment test and our quarterly assessments in the intervening periods due to the factors discussed above.

We determined the fair value of the Germany reporting unit by utilizing an income approach derived from a discounted cash flow methodology. The income approach is developed from management’s forecasted cash flow data. Significant assumptions used in our interim goodwill impairment test included: future expected revenue growth rates, operating unit profit margins, working capital levels, discount rate, and a terminal value multiple.

We have also experienced declines in the operating results of our reporting units apart from our Germany reporting unit during the six months ended June 30, 2020 as a result of the impact from the COVID-19 pandemic on the global economy; however, as of the end of the first half of 2020 and the date of this filing, we do not believe that it is more likely than not that the fair value of our reporting units are below their carrying value. However, given the uncertainty of the financial impacts from the COVID-19 pandemic, there may be 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

6 Months Ended

Jun. 30, 2020

Accounting Changes And Error Corrections [Abstract]

Recent Accounting Standards

(2) Recent Accounting Standards

Accounting Standards Effective as of January 1, 2020

In June 2016, the FASB issued new accounting guidance on financial instruments. The new guidance requires application of an impairment model known as the current expected credit loss (“CECL”) model to certain financial instruments. Using the CECL model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions, and forecasted information rather than the previous methodology of delaying recognition of credit losses until it is probable that loss has been incurred. The new guidance was effective for us as of January 1, 2020. The adoption of this guidance did not have a material impact on our Consolidated Financial Statements.

In August 2018, the FASB issued new guidance on disclosures related to fair value measurements. The guidance is intended to improve the effectiveness of the notes to financial statements by facilitating clearer communication, and it includes multiple new, eliminated and modified disclosure requirements. The guidance was effective for us as of January 1, 2020. The adoption of this guidance had no impact on our Consolidated Financial Statements.

In August 2018, the FASB issued new guidance on the accounting for internal-use software. The guidance aligns the accounting for costs incurred to implement a cloud computing arrangement that is a service arrangement with the guidance on capitalizing costs associated with developing or obtaining internal-use software. The guidance was effective for us as of January 1, 2020. The adoption of this guidance had no impact on our Consolidated Financial Statements.

In August 2018, the FASB issued new guidance on disclosures related to defined benefit plans. The guidance amends the current disclosure requirements to add, remove and clarify disclosure requirements for defined benefit pension and other postretirement plans. The guidance was effective for us as of January 1, 2020. The adoption of this guidance had no impact on our Consolidated Financial Statements.

Recently Issued Accounting Standards

In December 2019, the FASB issued new guidance on income taxes. The guidance removes certain exceptions to the general income tax accounting principles, and clarifies and amends existing guidance to facilitate consistent application of the accounting principles. The new guidance is effective for us as of January 1, 2021. We are assessing the impact of the adoption of this guidance on our Consolidated Financial Statements.

In January 2020, the FASB issued new guidance on equity method investments. The guidance clarifies the interactions between the existing accounting standards on equity securities, equity method and joint ventures, and derivatives and hedging. The new guidance addresses accounting for the transition into and out of the equity method and measuring certain purchased options and forward contracts to acquire investments. The new guidance is effective for us as of January 1, 2021. We do not expect the adoption of this guidance to have a material impact on our Consolidated Financial Statements.

- Definition

The entire disclosure for change in accounting principle. Includes, but is not limited to, nature, reason, and method of adopting amendment to accounting standards or other change in accounting principle.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (g)(2)
-URI http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-URI http://asc.fasb.org/topic&trid=2122394

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section S99
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=112272810&loc=SL108384541-122693

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 65
-Paragraph 1
-Subparagraph (i)(2)
-URI http://asc.fasb.org/extlink&oid=113356391&loc=SL49131195-203048

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (g)(2)(iii)
-URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
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+ Details

Revenue Recognition

6 Months Ended

Jun. 30, 2020

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 June 30, 2020, 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 $37.3 at June 30, 2020 and $44.5 at December 31, 2019.

In the following table, revenue is disaggregated by service types for each of our reportable segments. See Note 3 to the Consolidated Financial Statements in our 2019 Annual Report on Form 10-K for descriptions of revenue service types.

	3 Months Ended June 30,
	2020										2019
	Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total		Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total
Americas:
United States	$	429.0	$	30.5	$	15.8	$	40.6	$	515.9	$	551.3	$	38.4	$	24.1	$	38.9	$	652.7
Other Americas		307.2		7.3		3.1		3.1		320.7		392.8		13.3		6.2		3.2		415.5
		736.2		37.8		18.9		43.7		836.6		944.1		51.7		30.3		42.1		1,068.2
Southern Europe:
France		663.4		62.5		7.4		2.7		736.0		1,345.7		58.4		13.6		7.6		1,425.3
Italy		255.0		5.0		4.8		3.7		268.5		365.2		11.9		10.7		6.6		394.4
Other Southern Europe		380.6		75.0		7.5		3.2		466.3		471.9		83.7		16.0		3.0		574.6
		1,299.0		142.5		19.7		9.6		1,470.8		2,182.8		154.0		40.3		17.2		2,394.3
Northern Europe		768.3		64.4		19.6		13.4		865.7		1,050.8		88.3		38.2		16.8		1,194.1
APME		450.6		81.7		28.2		8.6		569.1		582.0		75.3		50.1		9.1		716.5
Total	$	3,254.1	$	326.4	$	86.4	$	75.3	$	3,742.2	$	4,759.7	$	369.3	$	158.9	$	85.2	$	5,373.1



	6 Months Ended June 30,
	2020										2019
	Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total		Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total
Americas:
United States	$	947.7	$	60.6	$	40.8	$	77.7	$	1,126.8	$	1,080.0	$	73.3	$	47.0	$	75.6	$	1,275.9
Other Americas		686.7		19.7		8.6		5.8		720.8		778.2		25.8		12.0		6.5		822.5
		1,634.4		80.3		49.4		83.5		1,847.6		1,858.2		99.1		59.0		82.1		2,098.4
Southern Europe:
France		1,661.7		140.6		19.9		7.6		1,829.8		2,570.2		117.1		28.1		16.0		2,731.4
Italy		562.1		13.7		13.0		7.4		596.2		695.2		21.7		20.6		13.3		750.8
Other Southern Europe		796.5		165.6		21.4		6.0		989.5		818.9		164.3		30.2		7.5		1,020.9
		3,020.3		319.9		54.3		21.0		3,415.5		4,084.3		303.1		78.9		36.8		4,503.1
Northern Europe		1,717.9		135.3		50.9		30.1		1,934.2		2,104.2		179.8		76.3		34.3		2,394.6
APME		917.2		164.9		65.1		16.8		1,164.0		1,165.4		146.1		93.8		16.6		1,421.9
Total	$	7,289.8	$	700.4	$	219.7	$	151.4	$	8,361.3	$	9,212.1	$	728.1	$	308.0	$	169.8	$	10,418.0

In the following table, revenue is disaggregated by timing of revenue recognition for each of our reportable segments:

	3 Months Ended June 30,
	2020						2019
	Services transferred over time		Services transferred at a point in time		Total		Services transferred over time		Services transferred at a point in time		Total
Americas:
United States	$	507.6	$	8.3	$	515.9	$	639.0	$	13.7	$	652.7
Other Americas		318.8		1.9		320.7		411.2		4.3		415.5
		826.4		10.2		836.6		1,050.2		18.0		1,068.2
Southern Europe:
France		729.5		6.5		736.0		1,412.6		12.7		1,425.3
Italy		264.1		4.4		268.5		384.6		9.8		394.4
Other Southern Europe		460.0		6.3		466.3		561.4		13.2		574.6
		1,453.6		17.2		1,470.8		2,358.6		35.7		2,394.3
Northern Europe		848.6		17.1		865.7		1,160.8		33.3		1,194.1
APME		553.5		15.6		569.1		683.3		33.2		716.5
Total	$	3,682.1	$	60.1	$	3,742.2	$	5,252.9	$	120.2	$	5,373.1


	6 Months Ended June 30,
	2020						2019
	Services transferred over time		Services transferred at a point in time		Total		Services transferred over time		Services transferred at a point in time		Total
Americas:
United States	$	1,105.4	$	21.4	$	1,126.8	$	1,249.2	$	26.7	$	1,275.9
Other Americas		715.3		5.5		720.8		814.2		8.3		822.5
		1,820.7		26.9		1,847.6		2,063.4		35.0		2,098.4
Southern Europe:
France		1,811.6		18.2		1,829.8		2,705.0		26.4		2,731.4
Italy		584.1		12.1		596.2		731.6		19.2		750.8
Other Southern Europe		971.5		18.0		989.5		995.8		25.1		1,020.9
		3,367.2		48.3		3,415.5		4,432.4		70.7		4,503.1
Northern Europe		1,890.0		44.2		1,934.2		2,328.2		66.4		2,394.6
APME		1,128.8		35.2		1,164.0		1,360.2		61.7		1,421.9
Total	$	8,206.7	$	154.6	$	8,361.3	$	10,184.2	$	233.8	$	10,418.0

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Share-Based Compensation Plans

6 Months Ended

Jun. 30, 2020

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation Plans

(4) Share-Based Compensation Plans

During the three months ended June 30, 2020 and 2019, we recognized share-based compensation expense of $6.9 and $8.3, respectively, and $11.5 and $12.9 for the six months ended June 30, 2020 and 2019, respectively. The expense relates to stock options, deferred stock, restricted stock and 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 $6.8 and $5.3 for the six months ended June 30, 2020 and 2019, respectively.

Acquisitions

6 Months Ended

Jun. 30, 2020

Business Combinations [Abstract]

Acquisitions

(5) Acquisitions

From time to time, we acquire and invest in companies throughout the world, including franchises. For the six months ended June 30, 2020, the total cash consideration paid for acquisitions, net of cash acquired, was $1.7, which represents a deferred consideration payment related to a previous acquisition.

On April 3, 2019, we acquired the remaining 51% controlling interest in our Swiss franchise (“Manpower Switzerland”) to obtain full ownership of the entity. Additionally, as part of the purchase agreement we acquired the remaining 20% interest in Experis AG. Manpower Switzerland provides contingent staffing services under our Manpower brand in the four main language regions in Switzerland. Both Manpower Switzerland and Experis AG are reported in our Southern Europe segment. The aggregate cash consideration paid was $212.7 as of June 30, 2019 and was funded through cash on hand. Of the total consideration paid, $58.3 was for the acquired interests and the remaining $154.4 was for cash and cash equivalents. The total cash impact of the acquisition was an

inflow of $104.8, net of cash acquired of $317.5. The acquisition of the remaining interest of Experis AG was accounted for as an equity transaction as we previously consolidated the entity.

In connection with the business combination, we recognized a one-time, non-cash gain on the disposition of our previously held equity interest in Manpower Switzerland of $80.4, which is included within interest and other expenses (income), net on the Consolidated Statements of Operations. Of the $80.4, $32.5 represented the reclassification of foreign currency translation adjustments related to the previously held equity interest, from accumulated other comprehensive income.

Excluding Manpower Switzerland and Experis AG, the total cash consideration paid for acquisitions, net of cash acquired, was $17.7 for the six months ended June 30, 2019. This balance represents contingent consideration payments related to previous acquisitions, of which $13.0 had been recognized as a liability at the acquisition date.

Restructuring Costs

6 Months Ended

Jun. 30, 2020

Restructuring And Related Activities [Abstract]

Restructuring Costs

(6) Restructuring Costs

We recorded net restructuring costs of $48.2 and $41.4 during the six months ended June 30, 2020 and 2019, respectively, in selling and administrative expenses, primarily related to severances and office closures and consolidations in multiple countries and territories. As a result of the adoption of the new accounting guidance on leases as of January 1, 2019, the office closure costs of $8.2 during the six months ended June 30, 2020 were recorded as an impairment to the operating lease right-of-use asset and, thus, are not included in the restructuring reserve balance as of June 30, 2020. The costs paid, utilized or transferred out of our restructuring reserve were $32.1 during the six months ended June 30, 2020. We expect a majority of the remaining $23.4 reserve will be paid by the end of 2020.

Changes in the restructuring reserve by reportable segment and Corporate are shown below.

	Americas⁽¹⁾			Southern Europe⁽²⁾			Northern Europe			APME			Corporate		Total
Balance, December 31, 2019	$	0.4		$	0.7		$	6.2		$	—		$	—	$	7.3
Severance costs		4.7			11.8			19.3			1.0			0.2		37.0
Office closure and other costs		8.1			1.3			0.2			1.6			—		11.2
Costs paid, utilized or transferred out		(10.5	)		(12.0	)		(7.0	)		(2.6	)		—		(32.1	)
Balance, June 30, 2020	$	2.7		$	1.8		$	18.7		$	-		$	0.2	$	23.4

(1)	Balances related to the United States were $0.3 and $2.1 as of December 31, 2019 and June 30, 2020, respectively.

(2)	France had no restructuring reserve as of both December 31, 2019 and June 30, 2020. Balances related to Italy were $0.3 and $0.6 as of December 31, 2019 and June 30, 2020, respectively.

Income Taxes

6 Months Ended

Jun. 30, 2020

Income Tax Disclosure [Abstract]

Income Taxes

(7) Income Taxes

We recorded income tax expense on a pre-tax loss resulting in a negative effective rate of 15.4% for the three months ended June 30, 2020, as compared to an income tax expense on pre-tax earnings resulting in an effective rate of 36.7% for the three months ended June 30, 2019. The 2020 rate was negative due to a pre-tax loss that primarily resulted from the impact from the goodwill impairment charge, related to our Germany reporting unit, which was non-deductible. The 2020 rate was also unfavorably impacted by the relatively low level and mix of pre-tax (losses) earnings, tax losses in certain countries for which we did not recognize a corresponding tax benefit due to valuation allowances, and the French business tax. The French business tax had a more significant unfavorable impact in the quarter due to French pre-tax earnings decreasing at a greater rate than revenues, which is the primary basis for the tax calculation. The negative effective tax rate of 15.4% for the three months ended June 30, 2020 was significantly different than the United States Federal statutory rate of 21% primarily due to the factors noted above.

We recorded income tax expense on a pre-tax loss resulting in a negative effective rate of 62.4% for the six months ended June 30, 2020, as compared to an income tax expense on pre-tax earnings resulting in an effective rate of 38.6% for the six months ended June 30, 2019. The 2020 rate was negative due to a pre-tax loss that primarily resulted from the impact from the goodwill impairment charge, related to our Germany reporting unit, which was non-deductible. The 2020 rate was also unfavorably impacted by the relatively low level and mix of pre-tax earnings, restructuring costs and tax losses in certain countries for which we did not recognize a corresponding tax benefit due to valuation allowances, and the French business tax. The negative effective tax rate of 62.4% for the

six months ended June 30, 2020 was significantly different than the United States Federal statutory rate of 21% primarily due to the factors noted above, partially offset by a discrete favorable benefit for the successful appeal of a non-United States tax ruling.

As of June 30, 2020, we had gross unrecognized tax benefits related to various tax jurisdictions, including interest and penalties, of $70.3 that would favorably impact the effective tax rate if recognized. As of December 31, 2019, we had gross unrecognized tax benefits related to various tax jurisdictions, including interest and penalties, of $69.5. 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 2013 through 2020 for our major operations in France, Germany, Japan, the United Kingdom and the United States. As of June 30, 2020, we are subject to tax audits in Austria, Belgium, Canada, Denmark, Germany, Israel and the United States. We believe that the resolution of these audits will not have a material impact on earnings.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

Net Earnings Per Share

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Net (Loss) Earnings Per Share

(8) Net (Loss) Earnings Per Share

The calculations of net (loss) earnings per share - basic and net earnings per share - diluted were as follows:

	3 Months Ended					6 Months Ended
	June 30,					June 30,
	2020			2019		2020			2019
Net (loss) earnings available to common shareholders	$	(64.4	)	$	127.3	$	(62.7	)	$	180.8
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		58.2			60.0		58.5			60.3
Effect of dilutive securities - stock options		—			0.1		—			0.1
Effect of other share-based awards		—			0.3		—			0.3
Weighted-average common shares outstanding - diluted		58.2			60.4		58.5			60.7
Net (loss) earnings per share - basic	$	(1.11	)	$	2.12	$	(1.07	)	$	3.00
Net (loss) earnings per share - diluted	$	(1.11	)	$	2.11	$	(1.07	)	$	2.98

Due to the net loss for the three months and six months ended June 30, 2020, the assumed exercise of share-based awards had an anti-dilutive effect and therefore was not included in the calculations of net loss per share – diluted for the three months and six months ended June 30, 2020. There were 1.1 million and 0.4 million share-based awards excluded from the calculation of net (loss) earnings per share - diluted for the three months ended June 30, 2020 and 2019, respectively, and 0.9 million and 0.4 million share-based awards excluded from the calculation of net (loss) earnings per share - diluted for the six months ended June 30, 2020 and 2019, respectively, because their impact was anti-dilutive.

Goodwill and Other Intangible Assets

6 Months Ended

Jun. 30, 2020

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:

	June 30, 2020						December 31, 2019
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Goodwill⁽¹⁾	$	1,178.2	$	—	$	1,178.2	$	1,260.1	$	—	$	1,260.1
Intangible assets:
Finite-lived:
Customer relationships	$	459.0	$	386.7	$	72.3	$	460.5	$	375.7	$	84.8
Other		20.7		14.9		5.8		20.9		13.7		7.2
		479.7		401.6		78.1		481.4		389.4		92.0
Indefinite-lived:
Tradenames⁽²⁾		52.0		—		52.0		52.0		—		52.0
Reacquired franchise rights		125.0		—		125.0		124.6		—		124.6
		177.0		—		177.0		176.6		—		176.6
Total intangible assets	$	656.7	$	401.6	$	255.1	$	658.0	$	389.4	$	268.6

(1) Balances were net of accumulated impairment loss of $644.2 and $577.4 as of June 30, 2020 and December 31, 2019, respectively.

(2) Balances were net of accumulated impairment loss of $139.5 as of both June 30, 2020 and December 31, 2019.

Total consolidated amortization expense related to intangible assets for the remainder of 2020 is expected to be $12.9 and in each of the next five years as follows: 2021- $15.9, 2022- $12.7, 2023- $10.0, 2024 - $7.7, 2025- $5.8.

Changes in the carrying value of goodwill by reportable segment and Corporate were as follows:

	Americas⁽¹⁾			Southern Europe⁽²⁾⁽³⁾		Northern Europe⁽³⁾			APME			Corporate⁽⁴⁾		Total
Balance, December 31, 2019	$	535.6		$	144.8	$	374.6		$	79.1		$	126.0	$	1,260.1
Currency impact		(2.2	)		—		(11.0	)		(1.9	)		—		(15.1	)
Impairment Charge		—			—		(66.8	)		—			—		(66.8	)
Balance, June 30, 2020	$	533.4		$	144.8	$	296.8		$	77.2		$	126.0	$	1,178.2

(1) Balances related to the United States were $490.3 and $490.2 as of December 31, 2019 and June 30, 2020, respectively.

(2) Balances related to France were $67.3 and $67.4 as of December 31, 2019 and June 30, 2020, respectively. Balances related to Italy were $4.6 and $3.8 as of December 31, 2019 and June 30, 2020.

(3) The impairment charge of $66.8 relates to our Germany reporting unit, which was recorded during the second quarter of 2020. See Note 1 to the Consolidated Financial Statements for further information.

(4) 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 now part of the United States reporting unit. For purposes of monitoring our total assets by segment, we do not allocate the Corporate balance 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. See table below for the breakout of goodwill balances by reporting unit.

Goodwill balances by reporting unit were as follows:

	June 30,		December 31,
	2020		2019
United States	$	545.7	$	545.8
Netherlands		109.7		109.5
United Kingdom		90.9		97.3
France		67.4		67.3
Right Management		62.1		62.1
Germany		—		67.2
Other reporting units		302.4		310.9
Total goodwill	$	1,178.2	$	1,260.1

Retirement Plans

6 Months Ended

Jun. 30, 2020

Compensation And Retirement Disclosure [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
	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Service cost	$	5.1		$	4.3		$	10.2		$	6.8
Interest cost		2.3			3.2			4.6			6.3
Expected return on assets		(3.2	)		(3.6	)		(6.6	)		(5.9	)
Settlement loss		—			—			10.2			—
Other		0.7			0.4			1.6			0.9
Total benefit cost	$	4.9		$	4.3		$	20.0		$	8.1


	Retiree Health Care Plan
	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Interest cost	$	0.1		$	0.2		$	0.2		$	0.3
Prior service credit		(0.2	)		(0.2	)		(0.4	)		(0.4	)
Total benefit credit	$	(0.1	)	$	—		$	(0.2	)	$	(0.1	)

During the three and six months ended June 30, 2020, contributions made to our pension plans were $5.0 and $11.0, respectively, and contributions made to our retiree health care plan were $0.3 and $0.6, respectively. During 2020, we expect to make total contributions of approximately $17.0 to our pension plans and to fund our retiree health care payments as incurred.

Pension Settlement

During the six months ended June 30, 2020, we fully settled our United States Qualified Retirement Plan (the “Plan”) liability. We purchased annuities of $19.2 and settled lump sum payments of $3.2 from the Plan in January and February 2020, respectively. The completion of lump sum payments in February and transfer of remaining participants to the Pension Benefit Guarantee Corporation (PBGC) in March triggered final settlement of the plan. Upon settlement of the pension liability, we reclassified the related pension losses of $6.6, net of tax, recorded in accumulated other comprehensive loss to the Consolidated Statements of Comprehensive (Loss) Income. The total amount of the required payout to plan participants was determined based on employee elections and market conditions at the time of settlement. The remaining plan assets of $16.6 which were in excess of the pension liability upon settlement will be utilized to fund future qualified 401(k) plan contributions following the conclusion of the standard PBGC audit.

- Definition

The entire disclosure for retirement benefits.

+ References

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+ Details

Shareholders' Equity

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Shareholders' Equity

(11) Shareholders’ Equity

The components of accumulated other comprehensive loss, net of tax, were as follows:

	June 30,			December 31,
	2020			2019
Foreign currency translation	$	(308.1	)	$	(260.5	)
Translation gain on derivative instruments, net of income taxes of $(9.0) and $(9.1), respectively		14.5			13.1
Translation loss on long-term intercompany loans		(121.9	)		(121.5	)
Defined benefit pension plans, net of income taxes of $(35.2) and $(30.9), respectively		(65.3	)		(74.1	)
Retiree health care plan, net of income taxes of $2.2 and $1.6, respectively		1.7			2.0
Accumulated other comprehensive loss	$	(479.1	)	$	(441.0	)

Noncontrolling Interests

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 in our Consolidated Statements of Operations. We recorded a benefit of $0.4 and an expense of $0.1 for the three months ended June 30, 2020 and 2019, respectively, and a benefit of $1.0 and an expense of $1.1 for the six months ended June 30, 2020 and 2019, respectively.

Dividends

The Board of Directors declared a semi-annual dividend of $1.09 per share on both May 8, 2020 and May 10, 2019. The 2020 dividends were paid on June 15, 2020 to shareholders of record as of June 1, 2020. The 2019 dividends were paid on June 14, 2019 to shareholders of record on June 3, 2019.

Share Repurchases

In August 2019, the Board of Directors authorized the repurchase of 6.0 million shares of our common stock, with terms consistent with the previous authorizations. This authorization is in addition to the August 2018 Board authorizations to purchase 6.0 million shares of our common stock each. 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 first six months of 2020, we repurchased a total of 0.9 million shares comprised of 0.8 million shares under the 2018 authorization and 0.1 million shares under the 2019 authorization, at a total cost of $63.8. The repurchases in the first half of 2020 all occurred within the first quarter of 2020. During the first six months of 2019, we repurchased a total of 1.2 million shares at a cost of $101.0 under the 2018 authorization. As of June 30, 2020, there were 5.9 million shares remaining authorized for repurchase under the 2019 authorization and no shares remaining authorized for repurchase under the 2018 authorization.

Interest and Other Expenses (Income), Net

6 Months Ended

Jun. 30, 2020

Other Nonoperating Income Expense [Abstract]

Interest and Other Expenses (Income), Net

(12) Interest and Other Expenses (Income), Net

Interest and other expenses (income), net consisted of the following:

	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Interest expense	$	10.4		$	11.2		$	21.5		$	21.4
Interest income		(3.1	)		(1.1	)		(6.8	)		(2.6	)
Foreign exchange loss (gain)		0.5			(0.5	)		3.6			2.4
Miscellaneous (income) expense, net⁽¹⁾		(2.0	)		(79.8	)		8.0			(79.5	)
Interest and other expenses (income), net	$	5.8		$	(70.2	)	$	26.3		$	(58.3	)

(1)

Miscellaneous (income) expense, net for the six months ended June 30, 2020 includes a $10.2 pension settlement loss related to one of our United States plans. See Note 10 to the Consolidated Financial Statements for further information. Miscellaneous (income) expense, net for the three and six months ended June 30, 2019 includes an $80.4 gain related to our acquisition of the remaining controlling interest in Manpower Switzerland. See Note 5 to the Consolidated Financial Statements for further information.

Derivative Financial Instruments and Fair Value Measurements

6 Months Ended

Jun. 30, 2020

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 (“forward 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.

The €400.0 ($448.2) notes due September 2022 and the €500.0 ($557.3) notes due June 2026 were designated as a hedge of our net investment in our foreign subsidiaries with a Euro-functional currency as of June 30, 2020.

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. 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 six months ended June 30, 2020 and 2019 was as follows:

	Gain (Loss) Recognized in Other Comprehensive Income
	3 Months Ended June 30,						6 Months Ended June 30,
Instrument	2020			2019			2020			2019
Euro Notes	$	(18.3	)	$	(13.9	)	$	(1.9	)	$	8.5
Cross-currency swaps		9.9			—			2.4			—

Cash Flow Hedges

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 matures in April 2022, which matches the term of the intercompany note. Gains and losses from the hedge offset the changes in the value of principal and interest payments as a result of changes in foreign exchange rates. 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 matures in September 2022, which matches the term of the intercompany note.

We assessed the hedging relationship at the inception of the hedge in order to determine whether the derivatives that are used in the hedging 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 agreement.

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 six months ended June 30, 2020 and 2019:

							(Loss) Gain Reclassified
	(Loss) Gain Recognized in OCI						from AOCI into Income
	3 Months Ended June 30,					Location of (Loss) Gain Reclassified	3 Months Ended June 30,
Instrument	2020			2019		from AOCI into Income	2020			2019
Cross-currency swaps	$	(0.9	)	$	5.0	Interest and other expenses (income), net	$	(1.0	)	$	5.4

						(Loss) Gain Reclassified
	(Loss) Gain Recognized in OCI					from AOCI into Income
	6 Months Ended June 30,				Location of (Loss) Gain Reclassified	6 Months Ended June 30,
Instrument	2020		2019		from AOCI into Income	2020		2019
Cross-currency swaps	$	4.8	$	5.0	Interest and other expenses (income), net	$	4.7	$	5.4

We expect the net amount of pre-tax derivative gains included in AOCI at June 30, 2020 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.

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 six months ended June 30, 2020 was as follows:

	Location of Gain	Amount of Gain Recognized in Income
Instrument	Recognized in Income	3 Months Ended June 30,				6 Months Ended June 30,
		2020		2019		2020		2019
Foreign currency forward contracts	Interest and other expenses (income), net	$	0.5	$	9.1	$	0.3	$	9.2

The following tables present the fair value of derivative and non-derivative assets and liabilities on the Consolidated Balance Sheets as of June 30, 2020 and December 31, 2019:

	Assets
		June 30,		December 31,
	Balance Sheet Location	2020		2019
Instruments designated as cash flow hedges:
Cross-currency swaps	Prepaid expenses and other assets	$	15.7	$	9.7
Total instruments		$	15.7	$	9.7

	Liabilities
		June 30,		December 31,
	Balance Sheet Location	2020		2019
Instruments designated as net investment hedges:
Euro Notes	Long-term debt	$	1,005.5	$	1,002.9
Cross-currency swaps	Accrued liabilities		4.1		6.0
Total instruments		$	1,009.6	$	1,008.9

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 $1,033.2 and $1,062.5 as of June 30, 2020 and December 31, 2019, respectively, compared to a carrying value of $1,005.5 and $1,002.9, respectively.

Our deferred compensation plan assets were $103.8 and $107.3 as of June 30, 2020 and December 31, 2019 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

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Leases

(14) Leases

The components of lease expense were as follows:

	Three Months Ended June 30,				6 Months Ended June 30,
	2020		2019		2020		2019
Operating lease expense	$	35.6	$	35.0	$	71.6	$	69.7
Short-term lease expense		3.3		6.0		7.2		12.1
Other lease expense⁽¹⁾	$	4.2	$	4.8	$	8.5	$	9.9
Total lease expense	$	43.1	$	45.8	$	87.3	$	91.7

(1)	Other lease expense includes variable lease expense and sublease income.

Other information related to leases was as follows:


	6 Months Ended June 30,
Supplemental Cash Flow Information	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	71.6	$	64.8
Operating ROU assets obtained in exchange for lease obligations		26.0		69.7

	June 30,		December 31,
Supplemental Balance Sheet Information	2020		2019
Operating Leases

Operating lease ROU assets	$	409.1	$	448.5

Operating lease liabilities - current⁽¹⁾	$	113.4	$	122.1
Operating lease liabilities - long-term		308.5		336.7
Total operating lease liabilities	$	421.9	$	458.8

(1)	Operating lease liabilities - current are included in accrued expenses on our Consolidated Balance Sheets.

Weighted Average Remaining Lease Term
Operating leases	5.5 years
Weighted Average Discount Rate
Operating leases		3.1	%

Maturities of operating lease liabilities as of June 30, 2020 were as follows:

(In millions)
Period Ending June 30, 2020	Operating Leases
Remainder of 2020	$	67.0
2021		109.5
2022		84.6
2023		58.5
2024		41.9
2025		28.1
Thereafter		73.2
Total future undiscounted lease payments	$	462.8
Less imputed interest	$	(40.9	)
Total operating lease liabilities	$	421.9

Segment Data

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Segment Data

(15) Segment Data

Effective January 1, 2020, our segment reporting was realigned due to our Right Management business being combined with each of our respective country business units. Accordingly, our former reportable segment, Right Management, is now reported within each of our respective reportable segments. All previously reported results have been restated to conform to the current year presentation.

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 locally. 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 Americas, Southern Europe, Northern Europe and APME 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, outplacement services, talent management 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.

	3 Months Ended June 30,						6 Months Ended June 30,
	2020			2019			2020			2019
Revenues from services:
Americas:
United States (a)	$	515.9		$	652.7		$	1,126.8		$	1,275.9
Other Americas		320.7			415.5			720.8			822.5
		836.6			1,068.2			1,847.6			2,098.4
Southern Europe:
France		736.0			1,425.3			1,829.8			2,731.4
Italy		268.5			394.4			596.2			750.8
Other Southern Europe		466.3			574.6			989.5			1,020.9
		1,470.8			2,394.3			3,415.5			4,503.1

Northern Europe		865.7			1,194.1			1,934.2			2,394.6
APME		569.1			716.5			1,164.0			1,421.9
Consolidated (b)	$	3,742.2		$	5,373.1		$	8,361.3		$	10,418.0

Operating unit profit (loss): (c)
Americas:
United States	$	9.2		$	37.7		$	11.5		$	54.3
Other Americas		10.5			17.8			24.8			33.0
		19.7			55.5			36.3			87.3
Southern Europe:
France		(2.5	)		75.7			35.5			131.0
Italy		11.0			29.8			25.2			50.1
Other Southern Europe		3.6			18.1			4.4			29.1
		12.1			123.6			65.1			210.2

Northern Europe		0.3			25.6			(13.8	)		27.5
APME		18.0			29.7			34.9			50.3
		50.1			234.4			122.5			375.3
Corporate expenses		(26.6	)		(31.9	)		(54.4	)		(59.8	)
Goodwill impairment charges		(66.8	)		(64.0	)		(66.8	)		(64.0	)
Intangible asset amortization expense		(6.7	)		(7.7	)		(13.6	)		(15.2	)
Operating (loss) profit		(50.0	)		130.8			(12.3	)		236.3
Interest and other (expenses) income, net		(5.8	)		70.2			(26.3	)		58.3
(Loss) earnings before income taxes	$	(55.8	)	$	201.0		$	(38.6	)	$	294.6

(a)

In the United States, revenues from services included fees received from the related franchise offices of $2.4 and $3.7 for the three months ended June 30, 2020 and 2019, respectively, and $5.4 and $7.3 for the six months ended June 30, 2020 and 2019, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $122.3 and $154.3 for the three months ended June 30, 2020 and 2019, respectively, and $198.8 and $311.2 for the six months ended June 30, 2020 and 2019, respectively.

(b)

Our consolidated revenues from services include fees received from our franchise offices of $2.8 and $4.1 for the three months ended June 30, 2020 and 2019, respectively, and $6.1 and $9.7 for the six months ended June 30, 2020 and 2019, respectively. These fees are primarily based on revenues generated by the franchise offices, which were $128.1 and $163.2 for the three months ended June 30, 2020 and 2019, respectively, and $210.4 and $406.2 for the six months ended June 30, 2020 and 2019, 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 income and expense amounts or income taxes.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Basis of Presentation and Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Basis of Presentation

COVID-19

Allowance for Doubtful Accounts

A rollforward of our allowance for doubtful accounts is shown below:

	Six Months Ended June 30, 2020
Balance, December 31, 2019	$	113.5
Provisions charged to earnings		10.8
Write-offs		(9.6	)
Translation adjustments		(0.8	)
Reclassifications and other		3.8
Balance, June 30, 2020	$	117.7

Leases

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.

Payroll Tax Credit

Goodwill Impairment

Recent Accounting Standards

(2) Recent Accounting Standards

Accounting Standards Effective as of January 1, 2020

Recently Issued Accounting Standards

Basis of Presentation and Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Summary of Rollforward of Allowance for Doubtful Accounts

A rollforward of our allowance for doubtful accounts is shown below:

	Six Months Ended June 30, 2020
Balance, December 31, 2019	$	113.5
Provisions charged to earnings		10.8
Write-offs		(9.6	)
Translation adjustments		(0.8	)
Reclassifications and other		3.8
Balance, June 30, 2020	$	117.7

Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2020

Revenue From Contract With Customer [Abstract]

Disaggregation of Revenue

	3 Months Ended June 30,
	2020										2019
	Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total		Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total
Americas:
United States	$	429.0	$	30.5	$	15.8	$	40.6	$	515.9	$	551.3	$	38.4	$	24.1	$	38.9	$	652.7
Other Americas		307.2		7.3		3.1		3.1		320.7		392.8		13.3		6.2		3.2		415.5
		736.2		37.8		18.9		43.7		836.6		944.1		51.7		30.3		42.1		1,068.2
Southern Europe:
France		663.4		62.5		7.4		2.7		736.0		1,345.7		58.4		13.6		7.6		1,425.3
Italy		255.0		5.0		4.8		3.7		268.5		365.2		11.9		10.7		6.6		394.4
Other Southern Europe		380.6		75.0		7.5		3.2		466.3		471.9		83.7		16.0		3.0		574.6
		1,299.0		142.5		19.7		9.6		1,470.8		2,182.8		154.0		40.3		17.2		2,394.3
Northern Europe		768.3		64.4		19.6		13.4		865.7		1,050.8		88.3		38.2		16.8		1,194.1
APME		450.6		81.7		28.2		8.6		569.1		582.0		75.3		50.1		9.1		716.5
Total	$	3,254.1	$	326.4	$	86.4	$	75.3	$	3,742.2	$	4,759.7	$	369.3	$	158.9	$	85.2	$	5,373.1



	6 Months Ended June 30,
	2020										2019
	Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total		Staffing and Interim		Outcome- Based Solutions and Consulting		Permanent Recruitment		Other		Total
Americas:
United States	$	947.7	$	60.6	$	40.8	$	77.7	$	1,126.8	$	1,080.0	$	73.3	$	47.0	$	75.6	$	1,275.9
Other Americas		686.7		19.7		8.6		5.8		720.8		778.2		25.8		12.0		6.5		822.5
		1,634.4		80.3		49.4		83.5		1,847.6		1,858.2		99.1		59.0		82.1		2,098.4
Southern Europe:
France		1,661.7		140.6		19.9		7.6		1,829.8		2,570.2		117.1		28.1		16.0		2,731.4
Italy		562.1		13.7		13.0		7.4		596.2		695.2		21.7		20.6		13.3		750.8
Other Southern Europe		796.5		165.6		21.4		6.0		989.5		818.9		164.3		30.2		7.5		1,020.9
		3,020.3		319.9		54.3		21.0		3,415.5		4,084.3		303.1		78.9		36.8		4,503.1
Northern Europe		1,717.9		135.3		50.9		30.1		1,934.2		2,104.2		179.8		76.3		34.3		2,394.6
APME		917.2		164.9		65.1		16.8		1,164.0		1,165.4		146.1		93.8		16.6		1,421.9
Total	$	7,289.8	$	700.4	$	219.7	$	151.4	$	8,361.3	$	9,212.1	$	728.1	$	308.0	$	169.8	$	10,418.0

In the following table, revenue is disaggregated by timing of revenue recognition for each of our reportable segments:

	3 Months Ended June 30,
	2020						2019
	Services transferred over time		Services transferred at a point in time		Total		Services transferred over time		Services transferred at a point in time		Total
Americas:
United States	$	507.6	$	8.3	$	515.9	$	639.0	$	13.7	$	652.7
Other Americas		318.8		1.9		320.7		411.2		4.3		415.5
		826.4		10.2		836.6		1,050.2		18.0		1,068.2
Southern Europe:
France		729.5		6.5		736.0		1,412.6		12.7		1,425.3
Italy		264.1		4.4		268.5		384.6		9.8		394.4
Other Southern Europe		460.0		6.3		466.3		561.4		13.2		574.6
		1,453.6		17.2		1,470.8		2,358.6		35.7		2,394.3
Northern Europe		848.6		17.1		865.7		1,160.8		33.3		1,194.1
APME		553.5		15.6		569.1		683.3		33.2		716.5
Total	$	3,682.1	$	60.1	$	3,742.2	$	5,252.9	$	120.2	$	5,373.1


	6 Months Ended June 30,
	2020						2019
	Services transferred over time		Services transferred at a point in time		Total		Services transferred over time		Services transferred at a point in time		Total
Americas:
United States	$	1,105.4	$	21.4	$	1,126.8	$	1,249.2	$	26.7	$	1,275.9
Other Americas		715.3		5.5		720.8		814.2		8.3		822.5
		1,820.7		26.9		1,847.6		2,063.4		35.0		2,098.4
Southern Europe:
France		1,811.6		18.2		1,829.8		2,705.0		26.4		2,731.4
Italy		584.1		12.1		596.2		731.6		19.2		750.8
Other Southern Europe		971.5		18.0		989.5		995.8		25.1		1,020.9
		3,367.2		48.3		3,415.5		4,432.4		70.7		4,503.1
Northern Europe		1,890.0		44.2		1,934.2		2,328.2		66.4		2,394.6
APME		1,128.8		35.2		1,164.0		1,360.2		61.7		1,421.9
Total	$	8,206.7	$	154.6	$	8,361.3	$	10,184.2	$	233.8	$	10,418.0

Restructuring Costs (Tables)

6 Months Ended

Jun. 30, 2020

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⁽¹⁾			Southern Europe⁽²⁾			Northern Europe			APME			Corporate		Total
Balance, December 31, 2019	$	0.4		$	0.7		$	6.2		$	—		$	—	$	7.3
Severance costs		4.7			11.8			19.3			1.0			0.2		37.0
Office closure and other costs		8.1			1.3			0.2			1.6			—		11.2
Costs paid, utilized or transferred out		(10.5	)		(12.0	)		(7.0	)		(2.6	)		—		(32.1	)
Balance, June 30, 2020	$	2.7		$	1.8		$	18.7		$	-		$	0.2	$	23.4

(1)	Balances related to the United States were $0.3 and $2.1 as of December 31, 2019 and June 30, 2020, respectively.

(2)	France had no restructuring reserve as of both December 31, 2019 and June 30, 2020. Balances related to Italy were $0.3 and $0.6 as of December 31, 2019 and June 30, 2020, respectively.

Net (Loss) Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2020

Earnings Per Share [Abstract]

Calculations of Net (Loss) Earnings Per Share - Basic and Diluted

The calculations of net (loss) earnings per share - basic and net earnings per share - diluted were as follows:

	3 Months Ended					6 Months Ended
	June 30,					June 30,
	2020			2019		2020			2019
Net (loss) earnings available to common shareholders	$	(64.4	)	$	127.3	$	(62.7	)	$	180.8
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic		58.2			60.0		58.5			60.3
Effect of dilutive securities - stock options		—			0.1		—			0.1
Effect of other share-based awards		—			0.3		—			0.3
Weighted-average common shares outstanding - diluted		58.2			60.4		58.5			60.7
Net (loss) earnings per share - basic	$	(1.11	)	$	2.12	$	(1.07	)	$	3.00
Net (loss) earnings per share - diluted	$	(1.11	)	$	2.11	$	(1.07	)	$	2.98

Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

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:

	June 30, 2020						December 31, 2019
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Goodwill⁽¹⁾	$	1,178.2	$	—	$	1,178.2	$	1,260.1	$	—	$	1,260.1
Intangible assets:
Finite-lived:
Customer relationships	$	459.0	$	386.7	$	72.3	$	460.5	$	375.7	$	84.8
Other		20.7		14.9		5.8		20.9		13.7		7.2
		479.7		401.6		78.1		481.4		389.4		92.0
Indefinite-lived:
Tradenames⁽²⁾		52.0		—		52.0		52.0		—		52.0
Reacquired franchise rights		125.0		—		125.0		124.6		—		124.6
		177.0		—		177.0		176.6		—		176.6
Total intangible assets	$	656.7	$	401.6	$	255.1	$	658.0	$	389.4	$	268.6

(1) Balances were net of accumulated impairment loss of $644.2 and $577.4 as of June 30, 2020 and December 31, 2019, respectively.

(2) Balances were net of accumulated impairment loss of $139.5 as of both June 30, 2020 and December 31, 2019.

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⁽¹⁾			Southern Europe⁽²⁾⁽³⁾		Northern Europe⁽³⁾			APME			Corporate⁽⁴⁾		Total
Balance, December 31, 2019	$	535.6		$	144.8	$	374.6		$	79.1		$	126.0	$	1,260.1
Currency impact		(2.2	)		—		(11.0	)		(1.9	)		—		(15.1	)
Impairment Charge		—			—		(66.8	)		—			—		(66.8	)
Balance, June 30, 2020	$	533.4		$	144.8	$	296.8		$	77.2		$	126.0	$	1,178.2

(1) Balances related to the United States were $490.3 and $490.2 as of December 31, 2019 and June 30, 2020, respectively.

(2) Balances related to France were $67.3 and $67.4 as of December 31, 2019 and June 30, 2020, respectively. Balances related to Italy were $4.6 and $3.8 as of December 31, 2019 and June 30, 2020.

Schedule of Goodwill Balances by Reporting Unit

Goodwill balances by reporting unit were as follows:

	June 30,		December 31,
	2020		2019
United States	$	545.7	$	545.8
Netherlands		109.7		109.5
United Kingdom		90.9		97.3
France		67.4		67.3
Right Management		62.1		62.1
Germany		—		67.2
Other reporting units		302.4		310.9
Total goodwill	$	1,178.2	$	1,260.1

Retirement Plans (Tables)

6 Months Ended

Jun. 30, 2020

Compensation And Retirement Disclosure [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
	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Service cost	$	5.1		$	4.3		$	10.2		$	6.8
Interest cost		2.3			3.2			4.6			6.3
Expected return on assets		(3.2	)		(3.6	)		(6.6	)		(5.9	)
Settlement loss		—			—			10.2			—
Other		0.7			0.4			1.6			0.9
Total benefit cost	$	4.9		$	4.3		$	20.0		$	8.1


	Retiree Health Care Plan
	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Interest cost	$	0.1		$	0.2		$	0.2		$	0.3
Prior service credit		(0.2	)		(0.2	)		(0.4	)		(0.4	)
Total benefit credit	$	(0.1	)	$	—		$	(0.2	)	$	(0.1	)

Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Equity [Abstract]

Components of Accumulated Other Comprehensive Loss, Net of Tax

The components of accumulated other comprehensive loss, net of tax, were as follows:

	June 30,			December 31,
	2020			2019
Foreign currency translation	$	(308.1	)	$	(260.5	)
Translation gain on derivative instruments, net of income taxes of $(9.0) and $(9.1), respectively		14.5			13.1
Translation loss on long-term intercompany loans		(121.9	)		(121.5	)
Defined benefit pension plans, net of income taxes of $(35.2) and $(30.9), respectively		(65.3	)		(74.1	)
Retiree health care plan, net of income taxes of $2.2 and $1.6, respectively		1.7			2.0
Accumulated other comprehensive loss	$	(479.1	)	$	(441.0	)

Interest and Other Expenses (Income), Net (Tables)

6 Months Ended

Jun. 30, 2020

Other Nonoperating Income Expense [Abstract]

Schedule of Interest and Other Expenses (Income), Net

Interest and other expenses (income), net consisted of the following:

	3 Months Ended						6 Months Ended
	June 30,						June 30,
	2020			2019			2020			2019
Interest expense	$	10.4		$	11.2		$	21.5		$	21.4
Interest income		(3.1	)		(1.1	)		(6.8	)		(2.6	)
Foreign exchange loss (gain)		0.5			(0.5	)		3.6			2.4
Miscellaneous (income) expense, net⁽¹⁾		(2.0	)		(79.8	)		8.0			(79.5	)
Interest and other expenses (income), net	$	5.8		$	(70.2	)	$	26.3		$	(58.3	)

(1)

Derivative Financial Instruments and Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2020

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 six months ended June 30, 2020 and 2019 was as follows:

	Gain (Loss) Recognized in Other Comprehensive Income
	3 Months Ended June 30,						6 Months Ended June 30,
Instrument	2020			2019			2020			2019
Euro Notes	$	(18.3	)	$	(13.9	)	$	(1.9	)	$	8.5
Cross-currency swaps		9.9			—			2.4			—

Impact of Changes in Fair Values of Derivatives Designated as Cash Flow Hedges on OCI, AOCI and Earnings

							(Loss) Gain Reclassified
	(Loss) Gain Recognized in OCI						from AOCI into Income
	3 Months Ended June 30,					Location of (Loss) Gain Reclassified	3 Months Ended June 30,
Instrument	2020			2019		from AOCI into Income	2020			2019
Cross-currency swaps	$	(0.9	)	$	5.0	Interest and other expenses (income), net	$	(1.0	)	$	5.4

						(Loss) Gain Reclassified
	(Loss) Gain Recognized in OCI					from AOCI into Income
	6 Months Ended June 30,				Location of (Loss) Gain Reclassified	6 Months Ended June 30,
Instrument	2020		2019		from AOCI into Income	2020		2019
Cross-currency swaps	$	4.8	$	5.0	Interest and other expenses (income), net	$	4.7	$	5.4

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 six months ended June 30, 2020 was as follows:

	Location of Gain	Amount of Gain Recognized in Income
Instrument	Recognized in Income	3 Months Ended June 30,				6 Months Ended June 30,
		2020		2019		2020		2019
Foreign currency forward contracts	Interest and other expenses (income), net	$	0.5	$	9.1	$	0.3	$	9.2

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 June 30, 2020 and December 31, 2019:

	Assets
		June 30,		December 31,
	Balance Sheet Location	2020		2019
Instruments designated as cash flow hedges:
Cross-currency swaps	Prepaid expenses and other assets	$	15.7	$	9.7
Total instruments		$	15.7	$	9.7

	Liabilities
		June 30,		December 31,
	Balance Sheet Location	2020		2019
Instruments designated as net investment hedges:
Euro Notes	Long-term debt	$	1,005.5	$	1,002.9
Cross-currency swaps	Accrued liabilities		4.1		6.0
Total instruments		$	1,009.6	$	1,008.9

Leases (Tables)

6 Months Ended

Jun. 30, 2020

Leases [Abstract]

Components of Lease Expense and Other Information

The components of lease expense were as follows:

	Three Months Ended June 30,				6 Months Ended June 30,
	2020		2019		2020		2019
Operating lease expense	$	35.6	$	35.0	$	71.6	$	69.7
Short-term lease expense		3.3		6.0		7.2		12.1
Other lease expense⁽¹⁾	$	4.2	$	4.8	$	8.5	$	9.9
Total lease expense	$	43.1	$	45.8	$	87.3	$	91.7

(1)	Other lease expense includes variable lease expense and sublease income.

Other information related to leases was as follows:


	6 Months Ended June 30,
Supplemental Cash Flow Information	2020		2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	71.6	$	64.8
Operating ROU assets obtained in exchange for lease obligations		26.0		69.7

Weighted Average Remaining Lease Term
Operating leases	5.5 years
Weighted Average Discount Rate
Operating leases		3.1	%

Supplemental Balance Sheet Information

	June 30,		December 31,
Supplemental Balance Sheet Information	2020		2019
Operating Leases

Operating lease ROU assets	$	409.1	$	448.5

Operating lease liabilities - current⁽¹⁾	$	113.4	$	122.1
Operating lease liabilities - long-term		308.5		336.7
Total operating lease liabilities	$	421.9	$	458.8

(1)	Operating lease liabilities - current are included in accrued expenses on our Consolidated Balance Sheets.

Maturities of Operating Lease Liabilities

Maturities of operating lease liabilities as of June 30, 2020 were as follows:

(In millions)
Period Ending June 30, 2020	Operating Leases
Remainder of 2020	$	67.0
2021		109.5
2022		84.6
2023		58.5
2024		41.9
2025		28.1
Thereafter		73.2
Total future undiscounted lease payments	$	462.8
Less imputed interest	$	(40.9	)
Total operating lease liabilities	$	421.9

Segment Data (Tables)

6 Months Ended

Jun. 30, 2020

Segment Reporting [Abstract]

Schedule of Segment Data

	3 Months Ended June 30,						6 Months Ended June 30,
	2020			2019			2020			2019
Revenues from services:
Americas:
United States (a)	$	515.9		$	652.7		$	1,126.8		$	1,275.9
Other Americas		320.7			415.5			720.8			822.5
		836.6			1,068.2			1,847.6			2,098.4
Southern Europe:
France		736.0			1,425.3			1,829.8			2,731.4
Italy		268.5			394.4			596.2			750.8
Other Southern Europe		466.3			574.6			989.5			1,020.9
		1,470.8			2,394.3			3,415.5			4,503.1

Northern Europe		865.7			1,194.1			1,934.2			2,394.6
APME		569.1			716.5			1,164.0			1,421.9
Consolidated (b)	$	3,742.2		$	5,373.1		$	8,361.3		$	10,418.0

Operating unit profit (loss): (c)
Americas:
United States	$	9.2		$	37.7		$	11.5		$	54.3
Other Americas		10.5			17.8			24.8			33.0
		19.7			55.5			36.3			87.3
Southern Europe:
France		(2.5	)		75.7			35.5			131.0
Italy		11.0			29.8			25.2			50.1
Other Southern Europe		3.6			18.1			4.4			29.1
		12.1			123.6			65.1			210.2

Northern Europe		0.3			25.6			(13.8	)		27.5
APME		18.0			29.7			34.9			50.3
		50.1			234.4			122.5			375.3
Corporate expenses		(26.6	)		(31.9	)		(54.4	)		(59.8	)
Goodwill impairment charges		(66.8	)		(64.0	)		(66.8	)		(64.0	)
Intangible asset amortization expense		(6.7	)		(7.7	)		(13.6	)		(15.2	)
Operating (loss) profit		(50.0	)		130.8			(12.3	)		236.3
Interest and other (expenses) income, net		(5.8	)		70.2			(26.3	)		58.3
(Loss) earnings before income taxes	$	(55.8	)	$	201.0		$	(38.6	)	$	294.6

(a)

(b)

(c)

Basis of Presentation and Accounting Policies - Summary of Rollforward of Allowance for Doubtful Accounts (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
Accounting Policies [Abstract]
Balance, December 31, 2019	$ 113.5
Provisions charged to earnings	10.8
Write-offs	(9.6)
Translation adjustments	(0.8)
Reclassifications and other	3.8
Balance, June 30, 2020	$ 117.7

Basis of Presentation and Accounting Policies - Additional Information (Details) € in Millions, $ in Millions	1 Months Ended		3 Months Ended			6 Months Ended
	Apr. 30, 2019 USD ($)	Apr. 30, 2019 EUR (€)	Jun. 30, 2020 USD ($)	Sep. 30, 2019	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2019 USD ($)
Accounting Policies [Line Items]
Net proceeds from sale of tax credits	$ 103.5	€ 92.0
Non-cash impairment charge loss			$ 66.8		$ 64.0	$ 66.8	$ 64.0
Northern Europe \| Germany
Accounting Policies [Line Items]
Non-cash impairment charge loss						$ 66.8
Minimum
Accounting Policies [Line Items]
Percentage of goodwill over fair value of reporting unit				20.00%
Germany
Accounting Policies [Line Items]
Non-cash impairment charge loss			$ 66.8		$ 60.2

Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Revenue From Contract With Customer [Abstract]
Deferred revenue	$ 37.3	$ 44.5

Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 3,742.2	$ 5,373.1	$ 8,361.3	$ 10,418.0
Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	3,682.1	5,252.9	8,206.7	10,184.2
Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	60.1	120.2	154.6	233.8
Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue	3,254.1	4,759.7	7,289.8	9,212.1
Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue	326.4	369.3	700.4	728.1
Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue	86.4	158.9	219.7	308.0
Other
Disaggregation of Revenue [Line Items]
Revenue	75.3	85.2	151.4	169.8
Americas
Disaggregation of Revenue [Line Items]
Revenue	836.6	1,068.2	1,847.6	2,098.4
Americas \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	826.4	1,050.2	1,820.7	2,063.4
Americas \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	10.2	18.0	26.9	35.0
Americas \| United States
Disaggregation of Revenue [Line Items]
Revenue	515.9	652.7	1,126.8	1,275.9
Americas \| United States \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	507.6	639.0	1,105.4	1,249.2
Americas \| United States \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	8.3	13.7	21.4	26.7
Americas \| Other Americas
Disaggregation of Revenue [Line Items]
Revenue	320.7	415.5	720.8	822.5
Americas \| Other Americas \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	318.8	411.2	715.3	814.2
Americas \| Other Americas \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	1.9	4.3	5.5	8.3
Americas \| Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue	736.2	944.1	1,634.4	1,858.2
Americas \| Staffing and Interim \| United States
Disaggregation of Revenue [Line Items]
Revenue	429.0	551.3	947.7	1,080.0
Americas \| Staffing and Interim \| Other Americas
Disaggregation of Revenue [Line Items]
Revenue	307.2	392.8	686.7	778.2
Americas \| Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue	37.8	51.7	80.3	99.1
Americas \| Outcome-Based Solutions and Consulting \| United States
Disaggregation of Revenue [Line Items]
Revenue	30.5	38.4	60.6	73.3
Americas \| Outcome-Based Solutions and Consulting \| Other Americas
Disaggregation of Revenue [Line Items]
Revenue	7.3	13.3	19.7	25.8
Americas \| Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue	18.9	30.3	49.4	59.0
Americas \| Permanent Recruitment \| United States
Disaggregation of Revenue [Line Items]
Revenue	15.8	24.1	40.8	47.0
Americas \| Permanent Recruitment \| Other Americas
Disaggregation of Revenue [Line Items]
Revenue	3.1	6.2	8.6	12.0
Americas \| Other
Disaggregation of Revenue [Line Items]
Revenue	43.7	42.1	83.5	82.1
Americas \| Other \| United States
Disaggregation of Revenue [Line Items]
Revenue	40.6	38.9	77.7	75.6
Americas \| Other \| Other Americas
Disaggregation of Revenue [Line Items]
Revenue	3.1	3.2	5.8	6.5
Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	1,470.8	2,394.3	3,415.5	4,503.1
Southern Europe \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	1,453.6	2,358.6	3,367.2	4,432.4
Southern Europe \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	17.2	35.7	48.3	70.7
Southern Europe \| France
Disaggregation of Revenue [Line Items]
Revenue	736.0	1,425.3	1,829.8	2,731.4
Southern Europe \| France \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	729.5	1,412.6	1,811.6	2,705.0
Southern Europe \| France \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	6.5	12.7	18.2	26.4
Southern Europe \| Italy
Disaggregation of Revenue [Line Items]
Revenue	268.5	394.4	596.2	750.8
Southern Europe \| Italy \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	264.1	384.6	584.1	731.6
Southern Europe \| Italy \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	4.4	9.8	12.1	19.2
Southern Europe \| Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	466.3	574.6	989.5	1,020.9
Southern Europe \| Other Southern Europe \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	460.0	561.4	971.5	995.8
Southern Europe \| Other Southern Europe \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	6.3	13.2	18.0	25.1
Southern Europe \| Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue	1,299.0	2,182.8	3,020.3	4,084.3
Southern Europe \| Staffing and Interim \| France
Disaggregation of Revenue [Line Items]
Revenue	663.4	1,345.7	1,661.7	2,570.2
Southern Europe \| Staffing and Interim \| Italy
Disaggregation of Revenue [Line Items]
Revenue	255.0	365.2	562.1	695.2
Southern Europe \| Staffing and Interim \| Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	380.6	471.9	796.5	818.9
Southern Europe \| Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue	142.5	154.0	319.9	303.1
Southern Europe \| Outcome-Based Solutions and Consulting \| France
Disaggregation of Revenue [Line Items]
Revenue	62.5	58.4	140.6	117.1
Southern Europe \| Outcome-Based Solutions and Consulting \| Italy
Disaggregation of Revenue [Line Items]
Revenue	5.0	11.9	13.7	21.7
Southern Europe \| Outcome-Based Solutions and Consulting \| Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	75.0	83.7	165.6	164.3
Southern Europe \| Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue	19.7	40.3	54.3	78.9
Southern Europe \| Permanent Recruitment \| France
Disaggregation of Revenue [Line Items]
Revenue	7.4	13.6	19.9	28.1
Southern Europe \| Permanent Recruitment \| Italy
Disaggregation of Revenue [Line Items]
Revenue	4.8	10.7	13.0	20.6
Southern Europe \| Permanent Recruitment \| Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	7.5	16.0	21.4	30.2
Southern Europe \| Other
Disaggregation of Revenue [Line Items]
Revenue	9.6	17.2	21.0	36.8
Southern Europe \| Other \| France
Disaggregation of Revenue [Line Items]
Revenue	2.7	7.6	7.6	16.0
Southern Europe \| Other \| Italy
Disaggregation of Revenue [Line Items]
Revenue	3.7	6.6	7.4	13.3
Southern Europe \| Other \| Other Southern Europe
Disaggregation of Revenue [Line Items]
Revenue	3.2	3.0	6.0	7.5
Northern Europe
Disaggregation of Revenue [Line Items]
Revenue	865.7	1,194.1	1,934.2	2,394.6
Northern Europe \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	848.6	1,160.8	1,890.0	2,328.2
Northern Europe \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	17.1	33.3	44.2	66.4
Northern Europe \| Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue	768.3	1,050.8	1,717.9	2,104.2
Northern Europe \| Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue	64.4	88.3	135.3	179.8
Northern Europe \| Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue	19.6	38.2	50.9	76.3
Northern Europe \| Other
Disaggregation of Revenue [Line Items]
Revenue	13.4	16.8	30.1	34.3
APME
Disaggregation of Revenue [Line Items]
Revenue	569.1	716.5	1,164.0	1,421.9
APME \| Services transferred over time
Disaggregation of Revenue [Line Items]
Revenue	553.5	683.3	1,128.8	1,360.2
APME \| Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Revenue	15.6	33.2	35.2	61.7
APME \| Staffing and Interim
Disaggregation of Revenue [Line Items]
Revenue	450.6	582.0	917.2	1,165.4
APME \| Outcome-Based Solutions and Consulting
Disaggregation of Revenue [Line Items]
Revenue	81.7	75.3	164.9	146.1
APME \| Permanent Recruitment
Disaggregation of Revenue [Line Items]
Revenue	28.2	50.1	65.1	93.8
APME \| Other
Disaggregation of Revenue [Line Items]
Revenue	$ 8.6	$ 9.1	$ 16.8	$ 16.6

Share-Based Compensation Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-based compensation	$ 6.9	$ 8.3	$ 11.5	$ 12.9
Consideration received from share-based awards			$ 6.8	$ 5.3

Acquisitions - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Apr. 03, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Business Acquisition [Line Items]
Total cash consideration paid for acquisitions, net of cash acquired			$ 1.7	$ (114.7)
Reclassification of foreign currency translation adjustments related to previously held equity interest		$ 32.5		32.5
Total contingent consideration payments for acquisitions				13.0
Manpower Switzerland
Business Acquisition [Line Items]
Total cash consideration paid for acquisitions, net of cash acquired	$ 317.5
Percentage interest acquired	51.00%
Cash consideration for acquisitions				212.7
Acquired interests	$ 58.3
Cash and cash equivalents	154.4
Total cash impact of the acquisition	104.8
Reclassification of foreign currency translation adjustments related to previously held equity interest	32.5
Manpower Switzerland \| Interest and Other Expenses (Income), Net
Business Acquisition [Line Items]
Non-cash gain on disposition of previously held equity interest	$ 80.4	$ 80.4		80.4
Experis AG
Business Acquisition [Line Items]
Percentage interest acquired	20.00%
Excluding Manpower Switzerland and Experis AG
Business Acquisition [Line Items]
Total cash consideration paid for acquisitions, net of cash acquired				$ 17.7

Restructuring Costs - Additional Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Restructuring And Related Activities [Abstract]
Restructuring costs	$ 48.2	$ 41.4
Office closure costs	8.2
Costs paid, utilized or transferred out	32.1
Reserve will be paid by end of period	$ 23.4		$ 7.3

Restructuring Costs - Schedule of Changes in Restructuring Reserve (Details) $ in Millions	6 Months Ended
	Jun. 30, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	$ 7.3
Severance costs	37.0
Office closure and other costs	11.2
Costs paid, utilized or transferred out	(32.1)
Balance, end of period	23.4
Reportable segments \| Americas
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.4
Severance costs	4.7
Office closure and other costs	8.1
Costs paid, utilized or transferred out	(10.5)
Balance, end of period	2.7
Reportable segments \| Southern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.7
Severance costs	11.8
Office closure and other costs	1.3
Costs paid, utilized or transferred out	(12.0)
Balance, end of period	1.8
Reportable segments \| Northern Europe
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	6.2
Severance costs	19.3
Office closure and other costs	0.2
Costs paid, utilized or transferred out	(7.0)
Balance, end of period	18.7
Reportable segments \| APME
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Severance costs	1.0
Office closure and other costs	1.6
Costs paid, utilized or transferred out	(2.6)
Balance, end of period	0.0
Corporate
Restructuring Cost and Reserve [Line Items]
Balance, beginning of period	0.0
Severance costs	0.2
Office closure and other costs	0.0
Costs paid, utilized or transferred out	0.0
Balance, end of period	$ 0.2

Restructuring Costs - Schedule of Changes in Restructuring Reserve (Parenthetical) (Details) - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 23,400,000	$ 7,300,000
Americas \| United States
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	2,100,000	300,000
Southern Europe \| France
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	0	0
Southern Europe \| Italy
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 600,000	$ 300,000

Income Taxes - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax [Line Items]
Effective income tax rate (as percent)	(15.40%)	36.70%	(62.40%)	38.60%
U.S. Federal statutory rate (as percent)	21.00%		21.00%
Tax benefit recognized due to valuation allowances and French business tax	$ 0		$ 0
Gross unrecognized tax benefits	$ 70,300,000		$ 70,300,000		$ 69,500,000
Earliest Tax Year
Income Tax [Line Items]
Income tax examination year under examination			2013
Latest Tax Year
Income Tax [Line Items]
Income tax examination year under examination			2020

Net (Loss) Earnings Per Share - Calculations of Net (Loss) Earnings Per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net (loss) earnings available to common shareholders	$ (64.4)	$ 1.7	$ 127.3	$ 53.5	$ (62.7)	$ 180.8
Weighted-average common shares outstanding (in millions)
Weighted-average common shares outstanding - basic (in shares)	58.2		60.0		58.5	60.3
Weighted-average common shares outstanding - diluted (in shares)	58.2		60.4		58.5	60.7
Net (loss) earnings per share - basic (in dollars per share)	$ (1.11)		$ 2.12		$ (1.07)	$ 3.00
Net (loss) earnings per share - diluted (in dollars per share)	$ (1.11)		$ 2.11		$ (1.07)	$ 2.98
Effect of dilutive securities - stock options
Weighted-average common shares outstanding (in millions)
Effect of dilutive securities	0.0		0.1		0.0	0.1
Effect of other share-based awards
Weighted-average common shares outstanding (in millions)
Effect of dilutive securities	0.0		0.3		0.0	0.3

Net (Loss) Earnings Per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
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 per share - diluted (in shares)	1.1	0.4	0.9	0.4

Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 1,178.2	$ 1,260.1
Finite-lived:
Gross	479.7	481.4
Accumulated Amortization	401.6	389.4
Net	78.1	92.0
Indefinite-lived:
Gross	177.0	176.6
Total intangible assets
Gross	656.7	658.0
Accumulated Amortization	401.6	389.4
Net	255.1	268.6
Tradenames
Indefinite-lived:
Gross	52.0	52.0
Reacquired franchise rights
Indefinite-lived:
Gross	125.0	124.6
Customer relationships
Finite-lived:
Gross	459.0	460.5
Accumulated Amortization	386.7	375.7
Net	72.3	84.8
Other
Finite-lived:
Gross	20.7	20.9
Accumulated Amortization	14.9	13.7
Net	$ 5.8	$ 7.2

Goodwill and Other Intangible Assets - Schedule of Goodwill and Intangible Assets (Parenthetical) (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Total intangible assets
Goodwill, accumulated impairment loss	$ 644.2	$ 577.4
Tradenames
Total intangible assets
Indefinite-lived, accumulated impairment loss	$ 139.5	$ 139.5

Goodwill and Other Intangible Assets - Additional Information (Details) $ in Millions	Jun. 30, 2020 USD ($)
Intangible Assets, Future Amortization Expense by Fiscal Year [Abstract]
Estimated amortization expense, remainder of 2020	$ 12.9
Estimated amortization expense, 2021	15.9
Estimated amortization expense, 2022	12.7
Estimated amortization expense, 2023	10.0
Estimated amortization expense, 2024	7.7
Estimated amortization expense, 2025	$ 5.8

Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Balance, December 31, 2019			$ 1,260.1
Currency impact			(15.1)
Impairment Charge	$ (66.8)	$ (64.0)	(66.8)	$ (64.0)
Balance, June 30, 2020	1,178.2		1,178.2
Reportable segments \| Americas
Goodwill [Roll Forward]
Balance, December 31, 2019			535.6
Currency impact			(2.2)
Balance, June 30, 2020	533.4		533.4
Reportable segments \| Southern Europe
Goodwill [Roll Forward]
Balance, December 31, 2019			144.8
Balance, June 30, 2020	144.8		144.8
Reportable segments \| Northern Europe
Goodwill [Roll Forward]
Balance, December 31, 2019			374.6
Currency impact			(11.0)
Impairment Charge			(66.8)
Balance, June 30, 2020	296.8		296.8
Reportable segments \| APME
Goodwill [Roll Forward]
Balance, December 31, 2019			79.1
Currency impact			(1.9)
Balance, June 30, 2020	77.2		77.2
Corporate
Goodwill [Roll Forward]
Balance, December 31, 2019			126.0
Balance, June 30, 2020	$ 126.0		$ 126.0

Goodwill and Other Intangible Assets - Changes in Carrying Value of Goodwill by Reportable Segment (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Goodwill [Roll Forward]
Goodwill	$ 1,178.2		$ 1,178.2		$ 1,260.1
Goodwill impairment charges	66.8	$ 64.0	66.8	$ 64.0
Jefferson Wells
Goodwill [Roll Forward]
Goodwill	55.5		55.5
Right Management
Goodwill [Roll Forward]
Goodwill	62.1		62.1
Germany
Goodwill [Roll Forward]
Goodwill impairment charges	66.8	$ 60.2
Americas \| United States
Goodwill [Roll Forward]
Goodwill	490.2		490.2		490.3
Americas \| United States \| Jefferson Wells
Goodwill [Roll Forward]
Goodwill	545.7		545.7		545.8
Southern Europe \| France
Goodwill [Roll Forward]
Goodwill	67.4		67.4		67.3
Southern Europe \| Italy
Goodwill [Roll Forward]
Goodwill	$ 3.8		$ 3.8		$ 4.6

Goodwill and Other Intangible Assets - Schedule of Goodwill Balances by Reporting Unit (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Goodwill [Line Items]
Goodwill	$ 1,178.2	$ 1,260.1
Jefferson Wells
Goodwill [Line Items]
Goodwill	55.5
Americas \| United States
Goodwill [Line Items]
Goodwill	490.2	490.3
Americas \| United States \| Jefferson Wells
Goodwill [Line Items]
Goodwill	545.7	545.8
Northern Europe \| Netherlands
Goodwill [Line Items]
Goodwill	109.7	109.5
Northern Europe \| United Kingdom
Goodwill [Line Items]
Goodwill	90.9	97.3
Northern Europe \| Germany
Goodwill [Line Items]
Goodwill		67.2
Southern Europe \| France
Goodwill [Line Items]
Goodwill	67.4	67.3
Other Reporting Units
Goodwill [Line Items]
Goodwill	302.4	310.9
Reportable segments \| Americas
Goodwill [Line Items]
Goodwill	533.4	535.6
Reportable segments \| Northern Europe
Goodwill [Line Items]
Goodwill	296.8	374.6
Reportable segments \| Southern Europe
Goodwill [Line Items]
Goodwill	144.8	144.8
Reportable segments \| Right Management
Goodwill [Line Items]
Goodwill	$ 62.1	$ 62.1

Retirement Plans - Components of Net Periodic Benefit Cost (Credit) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 5.1	$ 4.3	$ 10.2	$ 6.8
Interest cost	2.3	3.2	4.6	6.3
Expected return on assets	(3.2)	(3.6)	(6.6)	(5.9)
Settlement loss	0.0	0.0	10.2	0.0
Other	0.7	0.4	1.6	0.9
Total benefit cost (credit)	4.9	4.3	20.0	8.1
Retiree Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0.1	0.2	0.2	0.3
Prior service credit	(0.2)	(0.2)	(0.4)	(0.4)
Total benefit cost (credit)	$ (0.1)	$ 0.0	$ (0.2)	$ (0.1)

Retirement Plans - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	6 Months Ended
	Feb. 29, 2020	Jan. 31, 2020	Jun. 30, 2020	Jun. 30, 2020
Defined Benefit Plan Disclosure [Line Items]
Pension liability				$ 6.6
Remaining plan assets in excess of pension liability			$ 16.6	16.6
United States Plans
Defined Benefit Plan Disclosure [Line Items]
Contributions to pension plans		$ 19.2
Settlement of lump sum payments	$ 3.2
Defined Benefit Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions to pension plans			5.0	11.0
Estimated employer contribution to pension plans during remainder of current fiscal year			17.0	17.0
Retiree Health Care Plan
Defined Benefit Plan Disclosure [Line Items]
Contributions to retiree health care plan			$ 0.3	$ 0.6

Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Details) - USD ($) $ in Millions	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ 2,542.8	$ 2,639.0	$ 2,761.5	$ 2,694.5	$ 2,649.9	$ 2,698.5
Foreign currency translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(308.1)		(260.5)
Translation gain on derivative instruments, net of income taxes of $(9.0) and $(9.1), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	14.5		13.1
Translation loss on long-term intercompany loans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(121.9)		(121.5)
Defined benefit pension plans and Retiree health care plan \| Defined benefit pension plans, net of income taxes of $(35.2) and $(30.9), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(65.3)		(74.1)
Defined benefit pension plans and Retiree health care plan \| Retiree health care plan, net of income taxes of $2.2 and $1.6, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	1.7		2.0
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (479.1)	$ (505.8)	$ (441.0)	$ (416.5)	$ (401.8)	$ (399.8)

- Definition

Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 45
-Paragraph 24
-URI http://asc.fasb.org/extlink&oid=115929471&loc=d3e21930-107793

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 45
-Paragraph 23
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929471&loc=d3e21914-107793

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22644-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 10
-Section 65
-Paragraph 4
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121646688&loc=SL121648383-210437

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568740-111683

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 65
-Paragraph 15
-Subparagraph (f)(2)
-URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333

Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4I
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4590271-111686

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 40
-Section 65
-Paragraph 2
-Subparagraph (f)(1)
-URI http://asc.fasb.org/extlink&oid=121370832&loc=SL117420844-207641

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 45
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929471&loc=d3e21711-107793

Reference 15: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4568447-111683

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 65
-Paragraph 15
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-URI http://asc.fasb.org/extlink&oid=121322162&loc=SL121327923-165333

Reference 17: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
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-URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794

Reference 19: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 22: http://www.xbrl.org/2003/role/disclosureRef
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Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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+ Details

Shareholders' Equity - Components of Accumulated Other Comprehensive Loss, Net of Tax (Parenthetical) (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Translation gain on derivative instruments, net of income taxes of $(9.0) and $(9.1), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	$ (9.0)	$ (9.1)
Defined benefit pension plans and Retiree health care plan \| Defined benefit pension plans, net of income taxes of $(35.2) and $(30.9), respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	(35.2)	(30.9)
Defined benefit pension plans and Retiree health care plan \| Retiree health care plan, net of income taxes of $2.2 and $1.6, respectively
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, income taxes	$ 2.2	$ 1.6

Shareholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended		6 Months Ended
	May 08, 2020	May 10, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Aug. 31, 2019	Aug. 03, 2018
Equity, Class of Treasury Stock [Line Items]
Net earnings, net of tax, attributable to noncontrolling interests			$ 5.8	$ (70.2)	$ 26.3	$ (58.3)
Dividend declared per share	$ 1.09	$ 1.09
Dividend declared date	May 08, 2020	May 10, 2019
Dividend payable date	Jun. 15, 2020	Jun. 14, 2019
Dividend record date	Jun. 01, 2020	Jun. 03, 2019
Shares authorized to be repurchased (in shares)							6,000,000.0	6,000,000.0
Shares repurchased during period (in shares)					900,000	1,200,000
Total cost of shares repurchased					$ 63.8	$ 101.0
August 2018 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during period (in shares)					800,000
Shares remaining authorized for repurchase (in shares)			0		0
August 2019 Authorization
Equity, Class of Treasury Stock [Line Items]
Shares repurchased during period (in shares)					100,000
Shares remaining authorized for repurchase (in shares)			5,900,000		5,900,000
Non-Controlling Interests
Equity, Class of Treasury Stock [Line Items]
Net earnings, net of tax, attributable to noncontrolling interests			$ (0.4)	$ 0.1	$ (1.0)	$ 1.1

Interest and Other Expenses (Income), Net - Schedule of Interest and Other Expenses (Income), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Nonoperating Income Expense [Abstract]
Interest expense	$ 10.4	$ 11.2	$ 21.5	$ 21.4
Interest income	(3.1)	(1.1)	(6.8)	(2.6)
Foreign exchange loss (gain)	0.5	(0.5)	3.6	2.4
Miscellaneous (income) expense, net	(2.0)	(79.8)	8.0	(79.5)
Interest and other expenses (income), net	$ 5.8	$ (70.2)	$ 26.3	$ (58.3)

Interest and Other Expenses (Income), Net - Schedule of Interest and Other Expenses (Income), Net (Parenthetical) (Details) - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Apr. 03, 2019	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Manpower Switzerland \| Interest and Other Expenses (Income), Net
Other Non Operating Income Expense [Line Items]
Non-cash gain on disposition of previously held equity interest	$ 80.4	$ 80.4		$ 80.4
United States Plans
Other Non Operating Income Expense [Line Items]
Pension settlement loss			$ (10.2)

Derivative Financial Instruments and Fair Value Measurements - Additional Information (Details) $ in Millions	Jun. 30, 2020 USD ($)	Jun. 30, 2020 EUR (€)	Dec. 31, 2019 USD ($)	Apr. 30, 2019 EUR (€)
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	$ 103.8		$ 107.3
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	1,033.2		1,062.5
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	$ 1,005.5		$ 1,002.9
Cross-currency swap \| Cash flow hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt \| €		€ 55,400,000		€ 202,300,000
Fixed annual interest rate	1.143%	1.143%		1.256%
Designated as hedging instrument \| Notes due September 2022 \| Euro-denominated notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 448.2	€ 400,000,000.0
Designated as hedging instrument \| Notes Due June 2026 \| Euro-denominated notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt	$ 557.3	€ 500,000,000.0

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		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Euro-denominated notes
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income	$ (18.3)	$ (13.9)	$ (1.9)	$ 8.5
Cross-currency swap
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income	$ 9.9		$ 2.4

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) - Cross-currency swap - Cash flow hedge - Designated as hedging instrument - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Derivative [Line Items]
(Loss) Gain Recognized in OCI	$ (0.9)	$ 5.0	$ 4.8	$ 5.0
Interest and Other Expenses (Income), Net
Derivative [Line Items]
(Loss) Gain Reclassified from AOCI into Income	$ (1.0)	$ 5.4	$ 4.7	$ 5.4

Derivative Financial Instruments and Fair Value Measurements - Effect of Forward Contracts not Designated as Hedging Instrument (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Not designated as hedging instrument \| Foreign Exchange Forward \| Interest and Other Expenses (Income), Net
Derivative [Line Items]
Amount of Gain Recognized in Income	$ 0.5	$ 9.1	$ 0.3	$ 9.2

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	Jun. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Assets	$ 15.7	$ 9.7
Liabilities	1,009.6	1,008.9
Cash flow hedge \| Designated as hedging instrument \| Cross-currency swap \| Prepaid expenses and other assets
Derivatives, Fair Value [Line Items]
Assets	15.7	9.7
Net Investment Hedging \| Designated as hedging instrument \| Cross-currency swap \| Accrued liabilities
Derivatives, Fair Value [Line Items]
Liabilities	4.1	6.0
Net Investment Hedging \| Designated as hedging instrument \| Euro Notes \| Long-term debt
Derivatives, Fair Value [Line Items]
Liabilities	$ 1,005.5	$ 1,002.9

Leases - Components of Lease Expense and Other Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Leases [Abstract]
Operating lease expense	$ 35.6	$ 35.0	$ 71.6	$ 69.7
Short-term lease expense	3.3	6.0	7.2	12.1
Variable lease expense	4.2	4.8	8.5	9.9
Total lease expense	$ 43.1	$ 45.8	87.3	91.7
Supplemental Cash Flow Information
Cash paid for amounts included in the measurement of operating lease liabilities			71.6	64.8
Operating ROU assets obtained in exchange for lease obligations			$ 26.0	$ 69.7

Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Operating Leases
Operating lease ROU assets	$ 409.1	$ 448.5
Operating lease liabilities - current	113.4	122.1
Operating lease liabilities - long-term	308.5	336.7
Total operating lease liabilities	$ 421.9	$ 458.8

Leases - Weighted Average Remaining Lease Term and Discount Rate (Details)	Jun. 30, 2020
Weighted Average Remaining Lease Term
Operating leases	5 years 6 months
Weighted Average Discount Rate
Operating leases	3.10%

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Period Ending June 30, 2020
Remainder of 2020	$ 67.0
2021	109.5
2022	84.6
2023	58.5
2024	41.9
2025	28.1
Thereafter	73.2
Total future undiscounted lease payments	462.8
Less imputed interest	(40.9)
Total operating lease liabilities	$ 421.9	$ 458.8

Segment Data - Schedule of Segment Data (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenues from services	$ 3,742.2	$ 5,373.1	$ 8,361.3	$ 10,418.0
Operating unit profit	50.1	234.4	122.5	375.3
Corporate expenses	(26.6)	(31.9)	(54.4)	(59.8)
Goodwill impairment charges	(66.8)	(64.0)	(66.8)	(64.0)
Intangible asset amortization expense	(6.7)	(7.7)	(13.6)	(15.2)
Operating (loss) profit	(50.0)	130.8	(12.3)	236.3
Interest and other (expenses) income, net	(5.8)	70.2	(26.3)	58.3
(Loss) earnings before income taxes	(55.8)	201.0	(38.6)	294.6
Americas
Segment Reporting Information [Line Items]
Revenues from services	836.6	1,068.2	1,847.6	2,098.4
Operating unit profit	19.7	55.5	36.3	87.3
Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	1,470.8	2,394.3	3,415.5	4,503.1
Operating unit profit	12.1	123.6	65.1	210.2
Northern Europe
Segment Reporting Information [Line Items]
Revenues from services	865.7	1,194.1	1,934.2	2,394.6
Operating unit profit	0.3	25.6	(13.8)	27.5
APME
Segment Reporting Information [Line Items]
Revenues from services	569.1	716.5	1,164.0	1,421.9
Operating unit profit	18.0	29.7	34.9	50.3
United States \| Americas
Segment Reporting Information [Line Items]
Revenues from services	515.9	652.7	1,126.8	1,275.9
Other Americas \| Americas
Segment Reporting Information [Line Items]
Revenues from services	320.7	415.5	720.8	822.5
France \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	736.0	1,425.3	1,829.8	2,731.4
Italy \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	268.5	394.4	596.2	750.8
Other Southern Europe \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	466.3	574.6	989.5	1,020.9
Reportable subsegments \| United States \| Americas
Segment Reporting Information [Line Items]
Revenues from services	515.9	652.7	1,126.8	1,275.9
Operating unit profit	9.2	37.7	11.5	54.3
Reportable subsegments \| Other Americas \| Americas
Segment Reporting Information [Line Items]
Revenues from services	320.7	415.5	720.8	822.5
Operating unit profit	10.5	17.8	24.8	33.0
Reportable subsegments \| France \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	736.0	1,425.3	1,829.8	2,731.4
Operating unit profit	(2.5)	75.7	35.5	131.0
Reportable subsegments \| Italy \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	268.5	394.4	596.2	750.8
Operating unit profit	11.0	29.8	25.2	50.1
Reportable subsegments \| Other Southern Europe \| Southern Europe
Segment Reporting Information [Line Items]
Revenues from services	466.3	574.6	989.5	1,020.9
Operating unit profit	$ 3.6	$ 18.1	$ 4.4	$ 29.1

Segment Data - Schedule of Segment Data (Parenthetical) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Segment Reporting Information [Line Items]
Revenues from services	$ 3,742.2	$ 5,373.1	$ 8,361.3	$ 10,418.0
Franchise revenue	128.1	163.2	210.4	406.2
Franchise fees
Segment Reporting Information [Line Items]
Revenues from services	2.8	4.1	6.1	9.7
Americas
Segment Reporting Information [Line Items]
Revenues from services	836.6	1,068.2	1,847.6	2,098.4
Americas \| United States
Segment Reporting Information [Line Items]
Revenues from services	515.9	652.7	1,126.8	1,275.9
Americas \| United States \| Franchise fees
Segment Reporting Information [Line Items]
Revenues from services	2.4	3.7	5.4	7.3
Franchise revenue	$ 122.3	$ 154.3	$ 198.8	$ 311.2

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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+ Details