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Investments (Tables) | 12 Months Ended
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Dec. 31, 2023
Equity Method Investments and Joint Ventures [Abstract] |
Summarized investment balances | Summarized investment balances are presented in the following table.
| December 31,
(in millions) | 2023 | 2022
JLL Technologies investments | $ | 397.6 |  | 483.4 |
LaSalle co-investments | 388.3 |  | 366.5 |
Other investments | 30.7 |  | 23.9 |
Total | $ | 816.6 |  | 873.8 |
Balance Sheet Amounts Consolidated for Variable Interest Entity [Table Text Block] | Summarized financial information for our consolidated VIEs is presented in the following table. As a result of the reconsideration event described above, there are no consolidated VIE balances as of December 31, 2023 and 2022 and net income was consolidated up to the reconsideration date.
Comprehensive Income Amounts Consolidated for Variable Interest Entity [Table Text Block] |
| Year Ended December 31,
(in millions) | 2023 | 2022 | 2021
Revenue | $ | — |  | 17.6 |  | 11.0 |
Operating and other expenses | — |  | (23.8) |  | (14.9) |
Net gain on sale of investments(1) | — |  | 142.3 |  | — |
Net income (loss) | $ | — |  | 136.1 |  | (3.9) |
Summary of Combined Financial Information for Unconsolidated Ventures | The following tables summarize the combined financial information for certain of our unconsolidated investments accounted for under the equity method or at fair value.
|  | December 31,
(in millions) |  | 2023 | 2022
Balance Sheets: |  |  |
| Investments, net of depreciation |  | $ | 37,233.7 |  | 36,855.2 |
| Total assets |  | 41,321.2 |  | 40,367.9 |
| Mortgage indebtedness |  | 12,321.2 |  | 11,790.0 |
| Other borrowings |  | 2,584.1 |  | 3,100.5 |
| Total liabilities |  | 17,513.9 |  | 16,986.9 |
| Total equity |  | 23,807.3 |  | 23,381.0 |
|  | Year Ended December 31,
(in millions) | 2023 | 2022 | 2021
Statements of Operations: |  |  |
| Revenue | $ | 2,403.5 |  | 2,193.4 |  | 2,103.6 |
| Net (loss) income | (1,085.8) |  | 576.6 |  | 1,850.7 |
Investments in real estate ventures |
| Year Ended December 31,
(in millions) | 2023 | 2022 | 2021
Fair value investments as of January 1, | $ | 794.9 |  | 639.6 |  | 340.3 |
Investments | 160.4 |  | 156.1 |  | 190.3 |
Distributions | (25.2) |  | (38.5) |  | (84.0) |
Change in fair value | (197.8) |  | 61.3 |  | 201.2 |
Foreign currency translation adjustments, net | 8.5 |  | (23.6) |  | (8.2) |
Fair value investments as of December 31, | $ | 740.8 |  | 794.9 |  | 639.6 |

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