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Restructuring and other | 12 Months Ended
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Dec. 31, 2021
Restructuring and Related Activities [Abstract] |
Restructuring and other | Restructuring and other includes charges or expenses attributable to: (i) employee severance; (ii) management restructuring and related costs; (iii) restructuring and integration; (iv) cost savings initiatives; (v) major litigation; and (vi) acquisition related and other unusual items. The following table summarizes pre-tax restructuring and other costs for the periods presented:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Employee severance and related(1) | $ | 4 |  |  | $ | 29 |  |  | $ | 8 |
Strategic review and related(2) | 97 |  |  | — |  |  | — |
Legal and related (see Note 20) | 25 |  |  | — |  |  | — |
Restructuring, integration and other | 41 |  |  | 27 |  |  | 17 |
Total | $ | 167 |  |  | $ | 56 |  |  | $ | 25 |
(1) The year ended December 31, 2020 includes $29 million in severance and other benefits granted to employees as a result of COVID-19 related austerity measures.
(2) Represents costs associated with the Pending Divestitures as further described in Note 1.

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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 http://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 http://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 http://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 http://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 http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 + Details
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