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OTHER COSTS AND EXPENSES (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Oct. 01, 2022 | Jul. 02, 2022 | Apr. 02, 2022 | Jan. 01, 2022 | Oct. 02, 2021 | Jul. 03, 2021 | Apr. 03, 2021 | Dec. 31, 2022 | Jan. 01, 2022 | Jan. 02, 2021
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Environmental remediation expense, statement of income or comprehensive income |  |  |  |  |  |  |  |  | Other, net |  |
Pre-tax acquisition charges | $ 54.0 | $ 119.0 | $ 248.0 | $ 221.0 | $ 104.0 | $ 33.0 | $ 33.0 | $ 24.0 | $ 642.0 | $ 194.0 |
Business combination acquisition related costs related to retirement benefit |  |  |  |  |  |  |  |  |  |  | $ 14.1
Research and development costs |  |  |  |  |  |  |  |  | 357.4 | 276.3 | 200.0
Consolidated Aerospace Manufacturing (CAM) |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Special termination benefits cost |  |  |  |  |  |  |  |  | 7.1 |  |
Unamortized loss on cash flow swap termination |  |  |  |  |  |  |  |  |  |  | 19.6
Release of contingent consideration liability |  |  |  |  |  |  |  |  |  |  | 55.3
COVID-19 |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Restructuring costs |  |  |  |  |  |  |  |  |  |  | 185.0
Other Expense |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |
Pre-tax acquisition charges |  |  |  |  |  |  |  |  | $ 9.8 | $ 24.2 | $ 27.4

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 912 -SubTopic 730 -Section 25 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6472174&loc=d3e58812-109433 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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