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Impairment | 12 Months Ended
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Dec. 31, 2022
Restructuring and Related Activities [Abstract] |
Impairment | Impairment Impairment expense, included in Cont Ops, for 2022, 2021 and 2020 is summarized as follows:
| Year Ended December 31,
(in millions) | 2022 |  | 2021 |  | 2020
Impairment: |  |  |  |  |
Goodwill associated with the Other reporting unit | $ | 40 |  |  | $ | 13 |  |  | $ | 169 |
Intangible customer relationship associated with Stork | — |  |  | — |  |  | 27 |
Energy Solutions' equity method investments | — |  |  | 28 |  |  | 86 |
Information technology assets | — |  |  | 16 |  |  | 16 |
Fair value adjustment of Stork and AMECO assets | (63) |  |  | 233 |  |  | 74 |
Total impairment | $ | (24) |  |  | $ | 290 |  |  | $ | 372 |
As part of our assessment of goodwill in 2022, the fair value of the Other reporting unit was determined using a combination of observable level 2 inputs, including indicative offers and ongoing negotiations for the related assets. In 2020, the fair value of the reporting units was determined using an income based approach that utilized unobservable Level 3 inputs, including significant management assumptions such as expected awards, forecasted revenue and operating margins, weighted average cost of capital, working capital assumptions and general market trends and conditions. The customer relationships' valuation approach utilized unobservable Level 3 inputs including ranges of assumptions of long-term revenue growth from 2% to 5.5% with a weighted average of 2.4%, weighted average cost of capital of 12% and a customer attrition factor of 10%. During 2021 and 2020, we evaluated our significant investments and determined that certain of our investments were impaired. The fair value of these investments were determined using unobservable Level 3 inputs based on the forecast of anticipated volumes and overhead absorption in a cyclical business. During 2022, we reversed $63 million of impairment originally recognized in 2021 when our Stork and AMECO businesses were classified as held for sale. The reversal relates primarily to remeasurement under held-and-used impairment criteria, for which CTA balances are excluded from carrying value. In 2021, the fair value of the Stork and AMECO assets were determined using a combination of observable level 2 inputs, including indicative offers and ongoing negotiations for the related assets.

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- Definition The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(e)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -URI https://asc.fasb.org/topic&trid=2175745 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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