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Segment Information | 12 Months Ended
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Dec. 31, 2023
Segment Reporting [Abstract] |
Segment Information | 22. Segment Information We have three reportable segments: brokerage, risk management and corporate. The brokerage segment is primarily comprised of our retail and wholesale insurance and reinsurance brokerage operations. The brokerage segment (which comprises our retail P/C, wholesale, reinsurance, benefits and captive operations) generates revenues through commissions paid by underwriting enterprises and through fees charged to our clients. Our brokers, agents and administrators act as intermediaries between underwriting enterprises and our clients and we do not assume net underwriting risks. The risk management segment provides contract claim settlement and administration services for commercial, nonprofit, captive and public sector entities, and various organizations that choose to self-insure some or all of their property/casualty coverages and for underwriting enterprises that choose to outsource some or all of their property/casualty claims departments. These operations also provide claims management, loss control consulting and insurance property appraisal services. Revenues are principally generated on a negotiated per-claim or per-service fee basis. Our risk management segment also provides risk management consulting services that are recognized as the services are delivered. The corporate segment manages our clean energy and other investments. In addition, the corporate segment reports the financial information related to our debt and other corporate costs, external acquisition-related expenses and the impact of foreign currency translation. Allocations of investment income and certain expenses are based on reasonable assumptions and estimates primarily using revenue, headcount and other information. We allocate the provision for income taxes to the brokerage and risk management segments using the local country statutory rates. Reported operating results by segment would change if different methods were applied. Financial information relating to our segments for 2023, 2022 and 2021 is as follows (in millions):
Year Ended December 31, 2023 |  | Brokerage |  |  | Risk Management |  |  | Corporate |  |  | Total |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
Commissions |  | $ | 5,865.0 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,865 |
Fees |  |  | 1,885.0 |  |  |  | 1,259.7 |  |  |  | — |  |  |  | 3,144.7 |
Supplemental revenues |  |  | 314.2 |  |  |  | — |  |  |  | — |  |  |  | 314.2 |
Contingent revenues |  |  | 235.3 |  |  |  | — |  |  |  | — |  |  |  | 235.3 |
Interest income, premium finance revenues and other income |  |  | 337.7 |  |  |  | 27.9 |  |  |  | 1.7 |  |  |  | 367.3 |
Revenues before reimbursements |  |  | 8,637.2 |  |  |  | 1,287.6 |  |  |  | 1.7 |  |  |  | 9,926.5 |
Reimbursements |  |  | — |  |  |  | 145.4 |  |  |  | — |  |  |  | 145.4 |
Total revenues |  |  | 8,637.2 |  |  |  | 1,433.0 |  |  |  | 1.7 |  |  |  | 10,071.9 |
Compensation |  |  | 4,769.1 |  |  |  | 776.8 |  |  |  | 135.3 |  |  |  | 5,681.2 |
Operating |  |  | 1,272.3 |  |  |  | 257.4 |  |  |  | 160.0 |  |  |  | 1,689.7 |
Reimbursements |  |  | — |  |  |  | 145.4 |  |  |  | — |  |  |  | 145.4 |
Interest |  |  | — |  |  |  | — |  |  |  | 296.7 |  |  |  | 296.7 |
Depreciation |  |  | 124.4 |  |  |  | 35.9 |  |  |  | 4.9 |  |  |  | 165.2 |
Amortization |  |  | 523.6 |  |  |  | 7.7 |  |  |  | — |  |  |  | 531.3 |
Change in estimated acquisition earnout payables |  |  | 376.8 |  |  |  | 0.5 |  |  |  | — |  |  |  | 377.3 |
Total expenses |  |  | 7,066.2 |  |  |  | 1,223.7 |  |  |  | 596.9 |  |  |  | 8,886.8 |
Earnings (loss) before income taxes |  |  | 1,571.0 |  |  |  | 209.3 |  |  |  | (595.2 | ) |  |  | 1,185.1 |
Provision (benefit) for income taxes |  |  | 401.6 |  |  |  | 55.3 |  |  |  | (237.8 | ) |  |  | 219.1 |
Net earnings (loss) |  |  | 1,169.4 |  |  |  | 154.0 |  |  |  | (357.4 | ) |  |  | 966.0 |
Net earnings (loss) attributable to noncontrolling interests |  |  | 6.3 |  |  |  | — |  |  |  | (9.8 | ) |  |  | (3.5 | )
Net earnings (loss) attributable to controlling interests |  | $ | 1,163.1 |  |  | $ | 154.0 |  |  | $ | (347.6 | ) |  | $ | 969.5 |
Net foreign exchange loss |  | $ | (0.3 | ) |  | $ | (9.9 | ) |  | $ | (0.1 | ) |  | $ | (10.3 | )
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 5,216.1 |  |  | $ | 1,208.7 |  |  | $ | 1.7 |  |  | $ | 6,426.5 |
United Kingdom |  |  | 1,946.5 |  |  |  | 47.6 |  |  |  | — |  |  |  | 1,994.1 |
Australia |  |  | 312.1 |  |  |  | 154.7 |  |  |  | — |  |  |  | 466.8 |
Canada |  |  | 397.7 |  |  |  | 6.2 |  |  |  | — |  |  |  | 403.9 |
New Zealand |  |  | 192.2 |  |  |  | 15.8 |  |  |  | — |  |  |  | 208.0 |
Other foreign |  |  | 572.6 |  |  |  | — |  |  |  | — |  |  |  | 572.6 |
Total revenues |  | $ | 8,637.2 |  |  | $ | 1,433.0 |  |  | $ | 1.7 |  |  | $ | 10,071.9 |
At December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |
Identifiable assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 21,763.9 |  |  | $ | 1,026.0 |  |  | $ | 2,520.4 |  |  | $ | 25,310.3 |
United Kingdom |  |  | 15,999.7 |  |  |  | 129.9 |  |  |  | — |  |  |  | 16,129.6 |
Australia |  |  | 1,969.7 |  |  |  | 469.2 |  |  |  | — |  |  |  | 2,438.9 |
Canada |  |  | 1,692.9 |  |  |  | 4.1 |  |  |  | — |  |  |  | 1,697.0 |
New Zealand |  |  | 773.1 |  |  |  | 20.1 |  |  |  | — |  |  |  | 793.2 |
Other foreign |  |  | 5,246.8 |  |  |  | — |  |  |  | — |  |  |  | 5,246.8 |
Total identifiable assets |  | $ | 47,446.1 |  |  | $ | 1,649.3 |  |  | $ | 2,520.4 |  |  | $ | 51,615.8 |
Goodwill - net |  | $ | 11,217.8 |  |  | $ | 238.8 |  |  | $ | 19.0 |  |  | $ | 11,475.6 |
Amortizable intangible assets - net |  |  | 4,427.9 |  |  |  | 205.4 |  |  |  | — |  |  |  | 4,633.3 |
Year Ended December 31, 2022 |  | Brokerage |  |  | Risk Management |  |  | Corporate |  |  | Total |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
Commissions |  | $ | 5,187.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 5,187.4 |
Fees |  |  | 1,476.9 |  |  |  | 1,090.8 |  |  |  | — |  |  |  | 2,567.7 |
Supplemental revenues |  |  | 284.7 |  |  |  | — |  |  |  | — |  |  |  | 284.7 |
Contingent revenues |  |  | 207.3 |  |  |  | — |  |  |  | — |  |  |  | 207.3 |
Interest income, premium finance revenues and other income |  |  | 147.5 |  |  |  | 1.8 |  |  |  | 0.7 |  |  |  | 150.0 |
Revenue from clean coal activities |  |  | — |  |  |  | — |  |  |  | 23.0 |  |  |  | 23.0 |
Revenues before reimbursements |  |  | 7,303.8 |  |  |  | 1,092.6 |  |  |  | 23.7 |  |  |  | 8,420.1 |
Reimbursements |  |  | — |  |  |  | 130.5 |  |  |  | — |  |  |  | 130.5 |
Total revenues |  |  | 7,303.8 |  |  |  | 1,223.1 |  |  |  | 23.7 |  |  |  | 8,550.6 |
Compensation |  |  | 4,024.7 |  |  |  | 664.9 |  |  |  | 110.2 |  |  |  | 4,799.8 |
Operating |  |  | 1,039.9 |  |  |  | 233.9 |  |  |  | 57.1 |  |  |  | 1,330.9 |
Reimbursements |  |  | — |  |  |  | 130.5 |  |  |  | — |  |  |  | 130.5 |
Cost of revenues from clean coal activities |  |  | — |  |  |  | — |  |  |  | 22.9 |  |  |  | 22.9 |
Interest |  |  | — |  |  |  | — |  |  |  | 256.9 |  |  |  | 256.9 |
Depreciation |  |  | 103.6 |  |  |  | 37.8 |  |  |  | 3.3 |  |  |  | 144.7 |
Amortization |  |  | 448.7 |  |  |  | 6.2 |  |  |  | — |  |  |  | 454.9 |
Change in estimated acquisition earnout payables |  |  | 90.4 |  |  |  | (7.4 | ) |  |  | — |  |  |  | 83.0 |
Total expenses |  |  | 5,707.3 |  |  |  | 1,065.9 |  |  |  | 450.4 |  |  |  | 7,223.6 |
Earnings (loss) before income taxes |  |  | 1,596.5 |  |  |  | 157.2 |  |  |  | (426.7 | ) |  |  | 1,327.0 |
Provision (benefit) for income taxes |  |  | 394.7 |  |  |  | 41.4 |  |  |  | (225.1 | ) |  |  | 211.0 |
Net earnings (loss) |  |  | 1,201.8 |  |  |  | 115.8 |  |  |  | (201.6 | ) |  |  | 1,116.0 |
Net earnings (loss) attributable to noncontrolling interests |  |  | 4.4 |  |  |  | — |  |  |  | (2.6 | ) |  |  | 1.8 |
Net earnings (loss) attributable to controlling interests |  | $ | 1,197.4 |  |  | $ | 115.8 |  |  | $ | (199.0 | ) |  | $ | 1,114.2 |
Net foreign exchange gain |  | $ | 2.6 |  |  | $ | 31.4 |  |  | $ | — |  |  | $ | 34.0 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 4,503.9 |  |  | $ | 1,029.6 |  |  | $ | 23.7 |  |  | $ | 5,557.2 |
United Kingdom |  |  | 1,544.3 |  |  |  | 44.1 |  |  |  | — |  |  |  | 1,588.4 |
Australia |  |  | 281.8 |  |  |  | 129.1 |  |  |  | — |  |  |  | 410.9 |
Canada |  |  | 356.0 |  |  |  | 5.9 |  |  |  | — |  |  |  | 361.9 |
New Zealand |  |  | 166.9 |  |  |  | 14.4 |  |  |  | — |  |  |  | 181.3 |
Other foreign |  |  | 450.9 |  |  |  | — |  |  |  | — |  |  |  | 450.9 |
Total revenues |  | $ | 7,303.8 |  |  | $ | 1,223.1 |  |  | $ | 23.7 |  |  | $ | 8,550.6 |
At December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Identifiable assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 17,485.3 |  |  | $ | 914.5 |  |  | $ | 2,540.8 |  |  | $ | 20,940.6 |
United Kingdom |  |  | 9,338.5 |  |  |  | 115.9 |  |  |  | — |  |  |  | 9,454.4 |
Australia |  |  | 1,792.1 |  |  |  | 89.0 |  |  |  | — |  |  |  | 1,881.1 |
Canada |  |  | 1,465.3 |  |  |  | 4.4 |  |  |  | — |  |  |  | 1,469.7 |
New Zealand |  |  | 730.9 |  |  |  | 18.8 |  |  |  | — |  |  |  | 749.7 |
Other foreign |  |  | 3,862.9 |  |  |  | — |  |  |  | — |  |  |  | 3,862.9 |
Total identifiable assets |  | $ | 34,675.0 |  |  | $ | 1,142.6 |  |  | $ | 2,540.8 |  |  | $ | 38,358.4 |
Goodwill - net |  | $ | 9,358.1 |  |  | $ | 112.2 |  |  | $ | 19.1 |  |  | $ | 9,489.4 |
Amortizable intangible assets - net |  |  | 3,325.9 |  |  |  | 46.2 |  |  |  | — |  |  |  | 3,372.1 |
Year Ended December 31, 2021 |  | Brokerage |  |  | Risk Management |  |  | Corporate |  |  | Total |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
Commissions |  | $ | 4,132.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 4,132.3 |
Fees |  |  | 1,296.9 |  |  |  | 967.2 |  |  |  | — |  |  |  | 2,264.1 |
Supplemental revenues |  |  | 248.7 |  |  |  | — |  |  |  | — |  |  |  | 248.7 |
Contingent revenues |  |  | 188.0 |  |  |  | — |  |  |  | — |  |  |  | 188.0 |
Interest income, premium finance revenues and other income |  |  | 101.6 |  |  |  | 0.4 |  |  |  | 0.5 |  |  |  | 102.5 |
Revenue from clean coal activities |  |  | — |  |  |  | — |  |  |  | 1,140.8 |  |  |  | 1,140.8 |
Revenues before reimbursements |  |  | 5,967.5 |  |  |  | 967.6 |  |  |  | 1,141.3 |  |  |  | 8,076.4 |
Reimbursements |  |  | — |  |  |  | 133.0 |  |  |  | — |  |  |  | 133.0 |
Total revenues |  |  | 5,967.5 |  |  |  | 1,100.6 |  |  |  | 1,141.3 |  |  |  | 8,209.4 |
Compensation |  |  | 3,252.4 |  |  |  | 580.7 |  |  |  | 94.4 |  |  |  | 3,927.5 |
Operating |  |  | 757.9 |  |  |  | 209.8 |  |  |  | 104.7 |  |  |  | 1,072.4 |
Reimbursements |  |  | — |  |  |  | 133.0 |  |  |  | — |  |  |  | 133.0 |
Cost of revenues from clean coal activities |  |  | — |  |  |  | — |  |  |  | 1,173.2 |  |  |  | 1,173.2 |
Interest |  |  | — |  |  |  | — |  |  |  | 226.1 |  |  |  | 226.1 |
Loss on extinguishment of debt |  |  | — |  |  |  | — |  |  |  | 16.2 |  |  |  | 16.2 |
Depreciation |  |  | 87.8 |  |  |  | 46.2 |  |  |  | 17.2 |  |  |  | 151.2 |
Amortization |  |  | 407.6 |  |  |  | 7.5 |  |  |  | — |  |  |  | 415.1 |
Change in estimated acquisition earnout payables |  |  | 116.3 |  |  |  | 3.3 |  |  |  | — |  |  |  | 119.6 |
Total expenses |  |  | 4,622.0 |  |  |  | 980.5 |  |  |  | 1,631.8 |  |  |  | 7,234.3 |
Earnings (loss) before income taxes |  |  | 1,345.5 |  |  |  | 120.1 |  |  |  | (490.5 | ) |  |  | 975.1 |
Provision (benefit) for income taxes |  |  | 328.9 |  |  |  | 30.6 |  |  |  | (339.4 | ) |  |  | 20.1 |
Net earnings (loss) |  |  | 1,016.6 |  |  |  | 89.5 |  |  |  | (151.1 | ) |  |  | 955.0 |
Net earnings attributable to noncontrolling interests |  |  | 8.4 |  |  |  | — |  |  |  | 39.8 |  |  |  | 48.2 |
Net earnings (loss) attributable to controlling interests |  | $ | 1,008.2 |  |  | $ | 89.5 |  |  | $ | (190.9 | ) |  | $ | 906.8 |
Net foreign exchange loss |  | $ | (1.7 | ) |  | $ | - |  |  | $ | (0.6 | ) |  | $ | (2.3 | )
Revenues: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 3,804.8 |  |  | $ | 910.7 |  |  | $ | 1,141.3 |  |  | $ | 5,856.8 |
United Kingdom |  |  | 1,199.0 |  |  |  | 46.0 |  |  |  | — |  |  |  | 1,245.0 |
Australia |  |  | 252.6 |  |  |  | 123.5 |  |  |  | — |  |  |  | 376.1 |
Canada |  |  | 302.2 |  |  |  | 5.8 |  |  |  | — |  |  |  | 308.0 |
New Zealand |  |  | 162.4 |  |  |  | 14.6 |  |  |  | — |  |  |  | 177.0 |
Other foreign |  |  | 246.5 |  |  |  | — |  |  |  | — |  |  |  | 246.5 |
Total revenues |  | $ | 5,967.5 |  |  | $ | 1,100.6 |  |  | $ | 1,141.3 |  |  | $ | 8,209.4 |
At December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Identifiable assets: |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 15,136.5 |  |  | $ | 790.2 |  |  | $ | 2,632.6 |  |  | $ | 18,559.3 |
United Kingdom |  |  | 8,170.7 |  |  |  | 134.1 |  |  |  | — |  |  |  | 8,304.8 |
Australia |  |  | 1,674.3 |  |  |  | 84.7 |  |  |  | — |  |  |  | 1,759.0 |
Canada |  |  | 1,427.2 |  |  |  | 4.4 |  |  |  | — |  |  |  | 1,431.6 |
New Zealand |  |  | 754.5 |  |  |  | 20.4 |  |  |  | — |  |  |  | 774.9 |
Other foreign |  |  | 2,406.5 |  |  |  | — |  |  |  | — |  |  |  | 2,406.5 |
Total identifiable assets |  | $ | 29,569.7 |  |  | $ | 1,033.8 |  |  | $ | 2,632.6 |  |  | $ | 33,236.1 |
Goodwill - net |  | $ | 8,544.6 |  |  | $ | 100.9 |  |  | $ | 20.7 |  |  | $ | 8,666.2 |
Amortizable intangible assets - net |  |  | 3,906.1 |  |  |  | 47.9 |  |  |  | — |  |  |  | 3,954.0 |

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