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Goodwill (Tables) | 12 Months Ended
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Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract] |
Changes in Carrying Amount of Goodwill | Goodwill allocated to reportable segments as at December 31, 2021 and 2020 and changes in the carrying amount of goodwill during the years ended December 31, 2021 and 2020 are as follows:
|  | ADG |  |  | AMS |  |  | MDG |  |  | Total |
December 31, 2019 |  |  | 43 |  |  |  | 2 |  |  |  | 117 |  |  |  | 162 |
Business combination |  |  | 24 |  |  |  | — |  |  |  | 111 |  |  |  | 135 |
Measurement period adjustment |  |  | 14 |  |  |  | — |  |  |  | — |  |  |  | 14 |
Foreign currency translation |  |  | 10 |  |  |  | — |  |  |  | 9 |  |  |  | 19 |
December 31, 2020 |  |  | 91 |  |  |  | 2 |  |  |  | 237 |  |  |  | 330 |
Measurement period adjustment |  |  | — |  |  |  | — |  |  |  | 1 |  |  |  | 1 |
Foreign currency translation |  |  | (8 | ) |  |  | — |  |  |  | (10 | ) |  |  | (18 | )
December 31, 2021 |  |  | 83 |  |  |  | 2 |  |  |  | 228 |  |  |  | 313 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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