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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | The following schedule disaggregates components of the Company's revenue:
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
(In millions) |  | 2021 | 2020 |  | 2021 | 2020
Marsh: |  |  |  |  |  |
EMEA |  | $ | 600 |  | $ | 536 |  |  | $ | 2,233 |  | $ | 1,887 |
Asia Pacific |  | 281 |  | 254 |  |  | 902 |  | 790 |
Latin America |  | 105 |  | 93 |  |  | 298 |  | 283 |
Total International |  | 986 |  | 883 |  |  | 3,433 |  | 2,960 |
U.S./Canada |  | 1,366 |  | 1,126 |  |  | 3,894 |  | 3,271 |
Total Marsh |  | 2,352 |  | 2,009 |  |  | 7,327 |  | 6,231 |
Guy Carpenter |  | 314 |  | 274 |  |  | 1,697 |  | 1,534 |
Subtotal |  | 2,666 |  | 2,283 |  |  | 9,024 |  | 7,765 |
Fiduciary interest income |  | 4 |  | 8 |  |  | 12 |  | 40 |
Total Risk and Insurance Services |  | $ | 2,670 |  | $ | 2,291 |  |  | $ | 9,036 |  | $ | 7,805 |
Mercer: |  |  |  |  |  |
Wealth |  | $ | 613 |  | $ | 566 |  |  | $ | 1,861 |  | $ | 1,719 |
Health |  | 449 |  | 430 |  |  | 1,398 |  | 1,348 |
Career |  | 253 |  | 220 |  |  | 618 |  | 549 |
Total Mercer |  | 1,315 |  | 1,216 |  |  | 3,877 |  | 3,616 |
Oliver Wyman Group |  | 610 |  | 480 |  |  | 1,813 |  | 1,458 |
Total Consulting |  | $ | 1,925 |  | $ | 1,696 |  |  | $ | 5,690 |  | $ | 5,074 |
Contract with Customer, Asset and Liability | The following schedule provides contract assets and contract liabilities information from contracts with customers:
(In millions) |  | September 30, 2021 |  | December 31, 2020
Contract assets |  | $ | 307 |  |  | $ | 236 |
Contract liabilities |  | $ | 738 |  |  | $ | 676 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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