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Intangible Assets and Goodwill - Amortized Intangible Assets, Excluding Goodwill, by Business Segment (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 2,829 | $ 2,701
Accumulated Amortization | 1,574 | 1,359
Products and Systems Integration |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 985 | 913
Accumulated Amortization | 337 | 261
Software and Services |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 1,844 | 1,788
Accumulated Amortization | $ 1,237 | $ 1,098

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