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Intangible Assets | 12 Months Ended
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Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets | 10. INTA N GIBLE ASSETS Intangible assets consist of:
|  | Remaining weighted average useful life in years |  |  | 2022 |  |  | 2021 |
Cost |  |  |  |  |  |  |  |  |  |  |  |
Customer relationship intangibles |  |  | 7 |  |  | $ | 388 |  |  | $ | 386 |
Computer software |  |  | 4 |  |  |  | 474 |  |  |  | 463 |
Patents and licenses |  |  | 7 |  |  |  | 304 |  |  |  | 314 |
|  |  |  |  |  |  | 1,166 |  |  |  | 1,163 |
Accumulated depreciation |  |  |  |  |  |  |  |  |  |  |  |
Customer relationship intangibles |  |  |  |  |  |  | (194 | ) |  |  | (175 | )
Computer software |  |  |  |  |  |  | (362 | ) |  |  | (360 | )
Patents and licenses |  |  |  |  |  |  | (158 | ) |  |  | (135 | )
|  |  |  |  |  | $ | 452 |  |  | $ | 493 |
The Company recorded $106 million and $114 million of amortization expense related to finite-lived intangible assets for the years ended December 31, 2022 and 2021, respectively. The Company currently estimates annual amortization expense to be $91 million for 2023, $77 million for 2024, $57 million for 2025, $50 million for 2026 and $43 million for 2027.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -URI https://asc.fasb.org/subtopic&trid=2144471 + Details
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