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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2024
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | The following table disaggregates various components of the Company's revenue:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(In millions) | 2024 |  | 2023 |  | 2024 |  | 2023
Marsh: |  |  |  |  |  |  |
EMEA | $ | 747 |  |  | $ | 692 |  |  | $ | 2,684 |  |  | $ | 2,482 |
Asia Pacific | 342 |  |  | 311 |  |  | 1,069 |  |  | 980 |
Latin America | 134 |  |  | 134 |  |  | 396 |  |  | 386 |
Total International | 1,223 |  |  | 1,137 |  |  | 4,149 |  |  | 3,848 |
U.S./Canada | 1,711 |  |  | 1,563 |  |  | 5,053 |  |  | 4,634 |
Total Marsh | 2,934 |  |  | 2,700 |  |  | 9,202 |  |  | 8,482 |
Guy Carpenter | 381 |  |  | 359 |  |  | 2,161 |  |  | 2,006 |
Subtotal | 3,315 |  |  | 3,059 |  |  | 11,363 |  |  | 10,488 |
Fiduciary interest income | 138 |  |  | 131 |  |  | 385 |  |  | 330 |
Total Risk and Insurance Services | $ | 3,453 |  |  | $ | 3,190 |  |  | $ | 11,748 |  |  | $ | 10,818 |
Mercer: |  |  |  |  |  |  |
Wealth | $ | 625 |  |  | $ | 635 |  |  | $ | 1,909 |  |  | $ | 1,853 |
Health | 520 |  |  | 496 |  |  | 1,605 |  |  | 1,559 |
Career | 307 |  |  | 294 |  |  | 742 |  |  | 731 |
Total Mercer | 1,452 |  |  | 1,425 |  |  | 4,256 |  |  | 4,143 |
Oliver Wyman Group | 810 |  |  | 781 |  |  | 2,436 |  |  | 2,266 |
Total Consulting | $ | 2,262 |  |  | $ | 2,206 |  |  | $ | 6,692 |  |  | $ | 6,409 |
Schedule of Contract Assets and Liabilities | The following table provides contract assets and contract liabilities information from contracts with customers:
(In millions) | September 30, 2024 |  | December 31, 2023
Contract assets | $ | 433 |  |  | $ | 357 |
Contract liabilities | $ | 864 |  |  | $ | 869 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-10 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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