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Assets Held for Sale and Related Divestiture - Narrative (Details) $ in Millions		3 Months Ended			6 Months Ended		12 Months Ended
	Aug. 04, 2021 USD ($) Item	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liability		$ 161.5			$ 161.5		$ 182.5
Gain on sale						$ 151.4
Business Solutions | Asset Held for Sale, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration from sale of business	$ 910.0
Number of closings | Item	3
Revenues		14.3	$ 35.7		29.7	124.8
Operating expenses		12.6	27.8		26.1	90.4
Divestiture costs directly associated with transaction		1.0	0.8		1.0	4.0
Liability		161.5			161.5		182.5
Other expense		1.5	$ 8.1		2.9	$ 10.9
Business Solutions | Asset Held for Sale, Not Discontinued Operations | First Closing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Unrealized currency translation gains				$ 17.8
Gain on sale				$ 151.4
Business Solutions | Asset Held for Sale, Not Discontinued Operations | Second Closing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale							96.9
Business Solutions | Asset Held for Sale, Not Discontinued Operations | Other liabilities | First Closing
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Liability		$ 104.0			$ 104.0		$ 104.0

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