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Revenue from Contracts with Customers (Tables) | 12 Months Ended
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Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue |
|  | Years Ended December 31
|  | 2022 |  | 2021 |  | 2020
Commercial Risk Solutions |  | $ | 6,715 |  |  | $ | 6,635 |  |  | $ | 5,861 |
Reinsurance Solutions |  | 2,190 |  |  | 1,997 |  |  | 1,814 |
Health Solutions |  | 2,224 |  |  | 2,154 |  |  | 2,067 |
Wealth Solutions |  | 1,367 |  |  | 1,426 |  |  | 1,341 |
Elimination |  | (17) |  |  | (19) |  |  | (17) |
Total revenue |  | $ | 12,479 |  |  | $ | 12,193 |  |  | $ | 11,066 |
Consolidated revenue from contracts with customers by geographic area, which is attributed on the basis of where the services are performed, is as follows (in millions):
|  | Years Ended December 31
|  | 2022 |  | 2021 |  | 2020
U.S. |  | $ | 5,666 |  |  | $ | 5,459 |  |  | $ | 5,032 |
Americas other than U.S. |  | 1,137 |  |  | 1,027 |  |  | 911 |
U.K. |  | 1,660 |  |  | 1,681 |  |  | 1,579 |
Ireland |  | 99 |  |  | 127 |  |  | 84 |
Europe, Middle East, & Africa other than U.K. and Ireland |  | 2,443 |  |  | 2,565 |  |  | 2,236 |
Asia Pacific |  | 1,474 |  |  | 1,334 |  |  | 1,224 |
Total revenue |  | $ | 12,479 |  |  | $ | 12,193 |  |  | $ | 11,066 |
Schedule of Capitalized Contract Cost | Changes in the net carrying amount of costs to fulfill contracts with customers are as follows (in millions):
|  | 2022 |  | 2021
Balance at beginning of period |  | $ | 361 |  |  | $ | 339 |
Additions |  | 1,479 |  |  | 1,504 |
Amortization |  | (1,480) |  |  | (1,478) |
Impairment |  | — |  |  | — |
Foreign currency translation and other |  | (5) |  |  | (4) |
Balance at end of period |  | $ | 355 |  |  | $ | 361 |
Changes in the net carrying amount of costs to obtain contracts with customers are as follows (in millions):
|  | 2022 |  | 2021
Balance at beginning of period |  | $ | 179 |  |  | $ | 184 |
Additions |  | 56 |  |  | 59 |
Amortization |  | (49) |  |  | (48) |
Impairment |  | — |  |  | — |
Foreign currency translation and other |  | (1) |  |  | (16) |
Balance at end of period |  | $ | 185 |  |  | $ | 179 |

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- Definition Tabular disclosure of cost capitalized in obtaining or fulfilling contract with customer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126905575&loc=SL49131252-203054 + 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 https://asc.fasb.org/extlink&oid=126920106&loc=SL49130545-203045 + Details
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