Acquisitions and Dispositions - Additional Information (Details)							3 Months Ended	12 Months Ended
	Oct. 01, 2021 USD ($)	Sep. 30, 2020 USD ($) Business	Aug. 07, 2019	Jul. 10, 2019	Jul. 09, 2019	Apr. 03, 2019 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Mar. 31, 2019
Business Acquisition [Line Items]
Total cash consideration paid for acquisitions, net of cash acquired								$ 8,100,000	$ 2,600,000	$ 47,700,000
Payment for contingent consideration liability, financing activities								6,300,000	1,900,000	13,000,000.0
Goodwill acquired during the period								522,700,000	0
Intangible assets acquired during the period									0
Non Cash Gain On Disposition Of Previously Held Controlling Interest								0	0	30,400,000
Number of businesses disposed | Business		4
Net proceeds from disposal of businesses		$ 5,800,000
Carrying value, intangible assets							$ 405,300,000	405,300,000	69,500,000
Revenues from services								20,724,400,000	18,001,000,000.0	20,863,500,000
APME
Business Acquisition [Line Items]
Revenues from services								2,481,100,000	$ 2,376,700,000	2,655,000,000.0
ManpowerGroup Greater China Limited
Business Acquisition [Line Items]
Percentage of diluted ownership interest, description									36.87% as the underwriters exercised their overallotment option in full
Foreign currency translation adjustment										6,200,000
ManpowerGroup Greater China Limited | APME
Business Acquisition [Line Items]
Percentage of controlling interest					51.00%
ManpowerGroup Greater China Limited | Initial Public Offering
Business Acquisition [Line Items]
Percentage of shares issued in equity				25.00%
Percentage of diluted ownership interest				38.25%
Percentage of diluted ownership interest, if underwriter exercises of overallotment option in full			36.87%
Selling and Administrative Expenses
Business Acquisition [Line Items]
One-time loss on disposition									$ (5,800,000)
Selling and Administrative Expenses | ManpowerGroup Greater China Limited
Business Acquisition [Line Items]
Non Cash Gain On Disposition Of Previously Held Controlling Interest										30,400,000
Manpower Switzerland
Business Acquisition [Line Items]
Percentage interest acquired											51.00%
Cash consideration for acquisitions						$ 219,500,000
Acquired interests						58,300,000
Cash and cash equivalents						161,200,000
Total cash impact of the acquisition						98,000,000.0
Cash acquired						317,500,000
Reclassification of foreign currency translation adjustments related to previously held equity interest						$ 32,500,000		0	0	32,500,000
Manpower Switzerland | ManpowerGroup Greater China Limited
Business Acquisition [Line Items]
Percentage interest acquired						51.00%
Manpower Switzerland | Interest and Other Expenses (Income), Net
Business Acquisition [Line Items]
Non-cash gain on disposition of previously held equity interest						$ 80,400,000
Experis AG
Business Acquisition [Line Items]
Percentage interest acquired						20.00%
2019 Acquisitions Excluding Manpower Switzerland
Business Acquisition [Line Items]
Goodwill acquired during the period										14,200,000
Intangible assets acquired during the period										$ 9,000,000.0
2021 Acquisitions Excluding Ettain Group [Member]
Business Acquisition [Line Items]
Goodwill acquired during the period								3,100,000
Intangible assets acquired during the period								$ 600,000
Ettain Group Member
Business Acquisition [Line Items]
Aggregate cash consideration paid	$ 930,900,000
Draw on revolving credit facility	150,000,000.0
Customer relationship intangible asset								15 years
Goodwill from Acquisition for income tax purposes							519,600,000	$ 519,600,000
Carrying value, intangible assets							354,000,000.0	354,000,000.0
Revenues from services							$ 182,700,000	21,269,100,000	$ 18,731,000,000.0
Ettain Group Member | Selling and Administrative Expenses
Business Acquisition [Line Items]
Acquisitions and integration costs								$ 18,800,000
Ettain Group Member | Acquired Interests Member
Business Acquisition [Line Items]
Aggregate cash consideration paid	925,000,000.0
Ettain Group Member | Working Capital And Cash Member
Business Acquisition [Line Items]
Aggregate cash consideration paid	$ 5,900,000