XML 43 R29.htm IDEA: XBRL DOCUMENT
v3.20.4

Revenue (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2020
Revenue from Contract with Customer [Abstract] |
Disaggregation of revenue | The following schedule disaggregates various components of the Company's revenue:
|  | For the Years Ended December 31,
|  | 2020 |  | 2019 |  | 2018
Marsh: |  |  |  |  |  |
EMEA |  | $ | 2,575 |  |  | $ | 2,482 |  |  | $ | 2,132 |
Asia Pacific |  | 1,059 |  |  | 953 |  |  | 683 |
Latin America |  | 424 |  |  | 460 |  |  | 400 |
Total International |  | 4,058 |  |  | 3,895 |  |  | 3,215 |
U.S./Canada |  | 4,537 |  |  | 4,119 |  |  | 3,662 |
Total Marsh |  | 8,595 |  |  | 8,014 |  |  | 6,877 |
Guy Carpenter |  | 1,696 |  |  | 1,480 |  |  | 1,286 |
Subtotal |  | 10,291 |  |  | 9,494 |  |  | 8,163 |
Fiduciary interest income |  | 46 |  |  | 105 |  |  | 65 |
Total Risk and Insurance Services |  | $ | 10,337 |  |  | $ | 9,599 |  |  | $ | 8,228 |
Mercer: |  |  |  |  |  |
Wealth |  | $ | 2,348 |  |  | $ | 2,369 |  |  | $ | 2,185 |
Health |  | 1,793 |  |  | 1,796 |  |  | 1,735 |
Career |  | 787 |  |  | 856 |  |  | 812 |
Total Mercer |  | 4,928 |  |  | 5,021 |  |  | 4,732 |
Oliver Wyman Group |  | 2,048 |  |  | 2,122 |  |  | 2,047 |
Total Consulting |  | $ | 6,976 |  |  | $ | 7,143 |  |  | $ | 6,779 |
Contract assets and liabilities | The following schedule provides contract assets and contract liabilities information from contracts with customers.
(In millions) |  | December 31, 2020 |  | December 31, 2019 |  | December 31, 2018
Contract assets |  | $ | 236 |  |  | $ | 207 |  |  | $ | 112 |
Contract liabilities |  | $ | 676 |  |  | $ | 593 |  |  | $ | 545 |

X
- 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=121604090&loc=SL49130551-203045 + Details
Name: | us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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=121604090&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RevenueFromContractWithCustomerAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration