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v3.25.1

Segments - Schedule of Summarized Financial Information by Segment (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Segment Reporting Information [Line Items] |  |
Revenue | $ 8,910 | $ 7,935
Operating income | 276 | 204
Depreciation and amortization | 177 | 158
Equity income (loss) from unconsolidated subsidiaries | 16 | (58)
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Revenue | 8,910 | 7,935
Operating income | 560 | 353
Equity income (loss) from unconsolidated subsidiaries | 16 | (58)
Operating Segments | Advisory Services |  |
Segment Reporting Information [Line Items] |  |
Revenue | 1,694 | 1,494
Operating income | 301 | 232
Depreciation and amortization | 67 | 65
Equity income (loss) from unconsolidated subsidiaries | 1 | 1
Operating Segments | Building Operations & Experience |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 70 | 46
Equity income (loss) from unconsolidated subsidiaries | 1 | 1
Operating Segments | Project Management |  |
Segment Reporting Information [Line Items] |  |
Revenue | 1,632 | 1,519
Operating income | 113 | 101
Depreciation and amortization | 25 | 29
Equity income (loss) from unconsolidated subsidiaries | 0 | 0
Operating Segments | Real Estate Investments |  |
Segment Reporting Information [Line Items] |  |
Revenue | 233 | 228
Operating income | 25 | 34
Depreciation and amortization | 3 | 3
Equity income (loss) from unconsolidated subsidiaries | (7) | 11
Corporate, other and eliminations |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 12 | 15
Equity income (loss) from unconsolidated subsidiaries | $ 21 | $ (71)

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