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Other Financial Data - Other Charges (Income) (Details) - USD ($) $ in Millions |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Dec. 22, 2022 | Feb. 11, 2022 | Sep. 30, 2023 | Oct. 01, 2022 | Sep. 30, 2023 | Oct. 01, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Intangibles amortization |  |  | $ 39 | $ 63 | $ 137 | $ 194
Environmental reserve expense |  |  | 0 | 0 | 15 | 0
Reorganization of business |  |  | 4 | 2 | 16 | 14
Operating lease asset impairments |  |  | 0 | 4 | 4 | 16
Acquisition-related transaction fees |  |  | 1 | 2 | 3 | 16
Fixed asset impairments |  |  | 0 | 1 | 3 | 12
Other |  |  | 1 | (1) | 2 | 0
Other charges |  |  | 46 | 83 | 181 | 262
Settlements Other Than Hytera |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Legal settlements |  |  | 1 | 12 | 1 | 23
Hytera Legal Settlement |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Legal settlements | $ (2) | $ (13) | $ 0 | $ 0 | $ 0 | $ (13)

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