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v3.23.3

Investments (Details) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 USD ($) investment | Sep. 30, 2022 USD ($) | Sep. 30, 2023 USD ($) investment | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Number of separate property or fund co-investments | investment | 49 |  | 49 |  |
Investments | $ 865.2 |  | $ 865.2 |  | $ 873.8
Revenue | 5,111.4 | $ 5,177.5 | 14,879.4 | $ 15,257.3 |
Net income | 59.3 | 138.1 | 53.8 | 617.5 |
Fair Value [Abstract] |  |  |  |  |
Fair value investments at beginning of the period |  |  | 794.9 | 639.6 |
Investments in Real Estate Ventures, at Fair Value, Additions |  |  | 141.1 | 140.3 |
Investments in Real Estate Ventures, at Fair Value, Distributions |  |  | (20.2) | (29.9) |
Unrealized Gain (Loss) on Investments |  |  | (121.8) | 65.2 |
Investments in Real Estate Ventures, at Fair Value, Foreign Currency Translation |  |  | (1.2) | (28.5) |
Fair value investments at end of the period | 792.8 | 786.7 | 792.8 | 786.7 |
JLL Technologies |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | 14.2 |  | 14.2 |  |
Investments | 469.3 |  | 469.3 |  | 483.4
LaSalle Investment Company II [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | 60.3 |  | 60.3 |  |
LaSalle Investment Management |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Guarantor Obligations, Maximum Exposure, Undiscounted | 361.9 |  | 361.9 |  |
Investments | 368.3 |  | 368.3 |  | 366.5
Other Investments and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Investments | 27.6 |  | 27.6 |  | $ 23.9
Consolidated Variable Interest Entities [Member] |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Revenue | 0.0 | 4.6 | 0.0 | 13.2 |
Other Expenses, consolidated VIE | 0.0 | (6.2) | 0.0 | (17.9) |
Gains (Losses) on Sales of Investment Real Estate, consolidated VIE | 0.0 | 0.0 | 0.0 | 142.3 |
Net income | $ 0.0 | $ (1.6) | $ 0.0 | $ 137.6 |

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