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Basis of Presentation and Accounting Policies - Additional Information (Details) € in Millions, $ in Millions			1 Months Ended				3 Months Ended	6 Months Ended
	Jul. 10, 2019	Jul. 09, 2019	Apr. 30, 2019 USD ($)	Apr. 30, 2019 EUR (€)	Apr. 30, 2018 USD ($)	Apr. 30, 2018 EUR (€)	Jun. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)
Subsequent Event [Line Items]
Net proceeds from sale of tax credits			$ 103.5	€ 92.0	$ 234.5	€ 190.9
Noncash goodwill impairment charge							$ 64.0	$ 64.0
ManpowerGroup Greater China Limited | Initial Public Offering
Subsequent Event [Line Items]
Percentage of diluted ownership interest, description								36.87% if the underwriters exercise their overallotment option in full.
Subsequent Event | ManpowerGroup Greater China Limited | Initial Public Offering
Subsequent Event [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%
Northern Europe | Germany
Subsequent Event [Line Items]
Noncash goodwill impairment charge							60.2
APME | Subsequent Event | ManpowerGroup Greater China Limited
Subsequent Event [Line Items]
Percentage of controlling interest		51.00%
APME | New Zealand
Subsequent Event [Line Items]
Noncash goodwill impairment charge							$ 3.8

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