Business Combinations, Goodwill by Segment (Details) $ in Millions	6 Months Ended
Jun. 30, 2022 USD ($)
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	$ 5.8
Goodwill, Translation Adjustments	(97.5)
Goodwill	4,519.9
Goodwill	4,611.6
Markets Advisory
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	0.0
Goodwill, Translation Adjustments	(40.2)
Goodwill	1,742.7
Goodwill	1,782.9
Capital Markets
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	0.8
Goodwill, Translation Adjustments	(43.5)
Goodwill	1,941.2
Goodwill	1,983.9
Work Dynamics
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	4.6
Goodwill, Translation Adjustments	(11.8)
Goodwill	532.7
Goodwill	539.9
JLL Technologies
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	0.4
Goodwill, Translation Adjustments	(0.2)
Goodwill	247.7
Goodwill	247.5
LaSalle Investment Management
Goodwill [Roll Forward]
Goodwill Additions, net of adjustments	0.0
Goodwill, Translation Adjustments	(1.8)
Goodwill	55.6
Goodwill	$ 57.4

The aggregate amount of goodwill acquired in the period and allocated to the reportable segment. The value is stated at fair value based on the purchase price allocation. Also includes purchase price allocation adjustment for allocations not yet complete at the prior year end.

No definition available.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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